C++ program to convert string into mm/dd/yyyy format


#include <iostream>
#include <string.h>
using namespace std;

int main()
{
char date[11]; // mm/dd/yyyy
int mm, dd, yyyy;

cout<<"Enter date : ";
cin>>date;

if(strlen(date)<10 || strlen(date)>10 )
{
cout<<"\n Error:Input should be in mm/dd/yyyy format";
}
else if(strlen(date) == 10)
{
char m[3], d[3], y[5];
int i,j;
	
for( i = 0; i<2; i++)
m[i]=date[i];     

for(i = 3, j=0; i<5; i++,j++){
d[j]=date[i];
}
for(i = 6, j=0; i<10; i++, j++)
y[j]=date[i];

mm = atoi(m);
dd=atoi(d);
yyyy = atoi(y);

cout<<"\n Month : "<<mm;
cout<<"\n Day : "<<dd;
cout<<"\n Year : "<<yyyy;
}
else
{
cout<<"\n Error:Input should be in mm/dd/yyyy format";
}
return 0;
}

#include <iostream>

#include <string.h>

using namespace std;

int main()

{

char date[11]; // mm/dd/yyyy

int mm, dd, yyyy;

cout<<"Enter date : ";

cin>>date;

if(strlen(date)<10 || strlen(date)>10 )

{

cout<<"\n Error:Input should be in mm/dd/yyyy format";

}

else if(strlen(date) == 10)

{

char m[3], d[3], y[5];

int i,j;

for( i = 0; i<2; i++)

m[i]=date[i];

for(i = 3, j=0; i<5; i++,j++){

d[j]=date[i];

}

for(i = 6, j=0; i<10; i++, j++)

y[j]=date[i];

mm = atoi(m);

dd=atoi(d);

yyyy = atoi(y);

cout<<"\n Month : "<<mm;

cout<<"\n Day : "<<dd;

cout<<"\n Year : "<<yyyy;

}

else

{

cout<<"\n Error:Input should be in mm/dd/yyyy format";

}

return 0;

}

C++ Program to check if number is Krishnamurthy

A Krishnamurthy number is a number whose sum of the factorial of digits is equal to the number itself. For example 145, 1! + 4! + 5! = 1 + (4*3*2*1) + (5*4*4*2*1) = 1 + 24 + 120 = 145. This C++ program takes input from user and check if it is Krishnamurthy. Program is divided into functions factorial(int) and isKrishnamurthy(int). For more details please run this code.


#include<iostream>
using namespace std;
 
//Function to calculate the factorial of any number
int factorial(int n)
{
int fact = 1;
while (n != 0)
{
   fact = fact*n;
   n--;
}
return fact;
}
 
//function to Check if number is krishnamurthy
void isKrishnamurthy(int n)
{
int sum = 0;

int temp = n;
while (temp != 0)
{
// calculate factorial of last digit
// of temp and add it to sum

sum += factorial(temp%10);

// replace value of temp by temp/10
temp = temp/10;
}

// Check if number is krishnamurthy

if(sum == n)
cout << "Yes. Input no is a Krishnamurthy";
else
cout << "No. Input no is not a Krishnamurthy";
}
 
int main()
{
int n;
cout<<"\n Input any no : ";
cin>>n;

isKrishnamurthy(n);

return 0;
}

#include<iostream>

using namespace std;

//Function to calculate the factorial of any number

int factorial(int n)

{

int fact = 1;

while (n != 0)

{

fact = fact*n;

n--;

}

return fact;

}

//function to Check if number is krishnamurthy

void isKrishnamurthy(int n)

{

int sum = 0;

int temp = n;

while (temp != 0)

{

// calculate factorial of last digit

// of temp and add it to sum

sum += factorial(temp%10);

// replace value of temp by temp/10

temp = temp/10;

}

// Check if number is krishnamurthy

if(sum == n)

cout << "Yes. Input no is a Krishnamurthy";

else

cout << "No. Input no is not a Krishnamurthy";

}

int main()

{

int n;

cout<<"\n Input any no : ";

cin>>n;

isKrishnamurthy(n);

return 0;

}

Finding Krishnamurthy numbers between 1 & 1000

We will use the above program only, but we will call isKrishnamurthy() function inside the for loop which runs from 1 to 1000


#include<iostream>
using namespace std;
 
//Function to calculate the factorial of any number
int factorial(int n)
{
int fact = 1;
while (n != 0)
{
   fact = fact*n;
   n--;
}
return fact;
}
 
//function to Check if number is krishnamurthy
void isKrishnamurthy(int n)
{
int sum = 0;

int temp = n;
while (temp != 0)
{
// calculate factorial of last digit
// of temp and add it to sum

sum += factorial(temp%10);

// replace value of temp by temp/10
temp = temp/10;
}

// Check if number is krishnamurthy

if(sum == n)
cout <<n<<" - is a Krishnamurthy number"<<endl;
}

int main()
{

for(int i = 1; i<1000; i++)
{
isKrishnamurthy(i);
}

return 0;
}

#include<iostream>

using namespace std;

//Function to calculate the factorial of any number

int factorial(int n)

{

int fact = 1;

while (n != 0)

{

fact = fact*n;

n--;

}

return fact;

}

//function to Check if number is krishnamurthy

void isKrishnamurthy(int n)

{

int sum = 0;

int temp = n;

while (temp != 0)

{

// calculate factorial of last digit

// of temp and add it to sum

sum += factorial(temp%10);

// replace value of temp by temp/10

temp = temp/10;

}

// Check if number is krishnamurthy

if(sum == n)

cout <<n<<" - is a Krishnamurthy number"<<endl;

}

int main()

{

for(int i = 1; i<1000; i++)

{

isKrishnamurthy(i);

}

return 0;

}

Count the number of letters in the sentence


#include <iostream>
using namespace std;

struct sentence{
char s[500];
};

struct sentence obj;
void countLetters();

int main()
{
cout << "Enter any sentence" << endl;
cin.getline(obj.s,500);
countLetters();
return 0;
}

void countLetters()
{
int i;
int letters = 0; // letters

for(i = 0; i<500; i++)
{
if( (obj.s[i]>='a' && obj.s[i]<='z') || (obj.s[i]<='A' && obj.s[i]>='Z'))
{
 letters++;
}
}
cout<<"\n No of letters in the sentence are : "<<letters;
}

#include <iostream>

using namespace std;

struct sentence{

char s[500];

};

struct sentence obj;

void countLetters();

int main()

{

cout << "Enter any sentence" << endl;

cin.getline(obj.s,500);

countLetters();

return 0;

}

void countLetters()

{

int i;

int letters = 0; // letters

for(i = 0; i<500; i++)

{

if( (obj.s[i]>='a' && obj.s[i]<='z') || (obj.s[i]<='A' && obj.s[i]>='Z'))

{

letters++;

}

cout<<"\n No of letters in the sentence are : "<<letters;

}

Count the number of words in the sentence


#include <iostream>
#include<string.h>
using namespace std;

struct sentence{
char s[500];
};
struct sentence obj;
void numberofWords();

int main()
{

cout << "Enter any sentence" << endl;
fgets( obj.s, 500, stdin );
numberofWords();

return 0;
}

void numberofWords()
{
int len = strlen(obj.s);
cout<<"\n lenth is " <<len << ",";
int i;
int words = 0;

i = 0;
while(i<len)
{
if (obj.s[i++] == ' ')
{
words++;
}
}
cout<<"words are : "<<words;

#include <iostream>

#include<string.h>

using namespace std;

struct sentence{

char s[500];

};

struct sentence obj;

void numberofWords();

int main()

{

cout << "Enter any sentence" << endl;

fgets( obj.s, 500, stdin );

numberofWords();

return 0;

}

void numberofWords()

{

int len = strlen(obj.s);

cout<<"\n lenth is " <<len << ",";

int i;

int words = 0;

i = 0;

while(i<len)

{

if (obj.s[i++] == ' ')

{

words++;

}

cout<<"words are : "<<words;

Count the punctuation marks in any sentence


#include<iostream>
using namespace std;

int main(){
    int countpunct = 0;
    char word;
    
    cout<<"\nEnter the Sentence: ";
    while ((word = getchar()) != EOF && word != '\n'){
        if (word == '.' || word == '?' ||  word == '!' ||  
        word == '(' ||  word == ')' ||  word == '*' ||  word == '&'){
            countpunct++;
        }
    }

    cout<<"\nThe number of punctuation marsks is : "<<countpunct;
}

#include<iostream>

using namespace std;

int main(){

int countpunct = 0;

char word;

cout<<"\nEnter the Sentence: ";

while ((word = getchar()) != EOF && word != '\n'){

if (word == '.' || word == '?' || word == '!' ||

word == '(' || word == ')' || word == '*' || word == '&'){

countpunct++;

}

cout<<"\nThe number of punctuation marsks is : "<<countpunct;

}

Program to find if string is Palindrome


#include <iostream>
#include<string.h>

using namespace std;

struct sentence{
 char string[50];
};
struct sentence obj;
void function();

int main(){
cout << "Enter any  string: "; cin >> obj.string;
function();
return 0;
}
   
void function()
{
int i, length;
int flag = 0;
length = strlen(obj.string);

for(i=0;i < length ;i++){
if(obj.string[i] != obj.string[length-i-1]){
    flag = 1;
    break;
   }
}

if (flag) {
cout << obj.string << " is not a palindrome" << endl; 
}    
else {
cout << obj.string << " is a palindrome" << endl; 
}

}

#include <iostream>

#include<string.h>

using namespace std;

struct sentence{

char string[50];

};

struct sentence obj;

void function();

int main(){

cout << "Enter any string: "; cin >> obj.string;

function();

return 0;

}

void function()

{

int i, length;

int flag = 0;

length = strlen(obj.string);

for(i=0;i < length ;i++){

if(obj.string[i] != obj.string[length-i-1]){

flag = 1;

break;

}

if (flag) {

cout << obj.string << " is not a palindrome" << endl;

}

else {

cout << obj.string << " is a palindrome" << endl;

}

Program to count letters in each word of sentence


#include <iostream>
#define MAX_WORDS	10
using namespace std;

struct st{
char text[100]; // to store string
int cnt[MAX_WORDS]; //to store length of the words   
};

struct st obj;
void printwords();

int main()
{
//reading string
cout<<"Enter any string: ";
fgets( obj.text, 100, stdin );
printwords();
return 0;
}

void printwords()
{
int len=0,i=0,j=0;
while(1)
{
	if(obj.text[i]==' ' || obj.text[i]=='\0')
	{
	//check NULL
	if(obj.text[i]=='\0')
	{
		if(len>0)
		{
			obj.cnt[j++]=len;
			len=0;
		}
		break; //terminate the loop
	}
	obj.cnt[j++]=len;
	len=0;
	}
	else
	{
		len++;
	}		
	i++;
}

cout<<"\n Here is Words length : \n";
for(i=0;i<j;i++)
{
	cout<<" "<<obj.cnt[i];
}
}

#include <iostream>

#define MAX_WORDS 10

using namespace std;

struct st{

char text[100]; // to store string

int cnt[MAX_WORDS]; //to store length of the words

};

struct st obj;

void printwords();

int main()

{

//reading string

cout<<"Enter any string: ";

fgets( obj.text, 100, stdin );

printwords();

return 0;

}

void printwords()

{

int len=0,i=0,j=0;

while(1)

{

if(obj.text[i]==' ' || obj.text[i]=='\0')

{

//check NULL

if(obj.text[i]=='\0')

{

if(len>0)

{

obj.cnt[j++]=len;

len=0;

}

break; //terminate the loop

}

obj.cnt[j++]=len;

len=0;

}

else

{

len++;

}

i++;

}

cout<<"\n Here is Words length : \n";

for(i=0;i<j;i++)

{

cout<<" "<<obj.cnt[i];

}

Count the vowels in the sentence


#include<iostream>
#include<cstring>
using namespace std;

int vowelCount ( char *);

int main(){

char word[80];
cout << "Enter a line: ";
cin.getline (word, 80);
cout << "\n Vowel count: " << vowelCount(word) << endl;

return 0;
}

// returns the number of vowels in a char array
int vowelCount ( char * pCh){
int vowels = 0;

while(*pCh){
if(strspn(pCh, "aeiou"))
vowels++;
pCh++;
}

return vowels;
}

#include<iostream>

#include<cstring>

using namespace std;

int vowelCount ( char *);

int main(){

char word[80];

cout << "Enter a line: ";

cin.getline (word, 80);

cout << "\n Vowel count: " << vowelCount(word) << endl;

return 0;

}

// returns the number of vowels in a char array

int vowelCount ( char * pCh){

int vowels = 0;

while(*pCh){

if(strspn(pCh, "aeiou"))

vowels++;

pCh++;

}

return vowels;

}

Is there a palindrome word the sentence


#include<iostream>

using namespace std;
struct sentence{
  char str[50];  
};

struct sentence obj;

int countPalindrome(char str[50], int st, int ed);
int main()
{

int pal = 0, len = 0, i, start = 0, end;

cout<<"\n\n\t Enter any sentence : ";
cin.getline (obj.str, 50);
while(obj.str[len]!='\0')
len++;
len--;
for(i=0;i<=len;i++)
{
if((obj.str[i] == ' ' && obj.str[i+1] != ' ') || i == len)
{
if(i == len)
end = i;
else
end = i - 1;
if( countPalindrome (obj.str, start, end ) )
pal++;
start = end + 2;
}
}
cout<<"\n\n\t the total number of palindrome are :" <<pal;

return 0;
}
int countPalindrome(char str[50], int st, int ed)
{
int i, pal=0;
for(i=0; i<=(ed-st)/2; i++)
{
	if(str[st+i] == str[ed-i])
	pal = 1;
	else
	{
	pal = 0;
	break;
}
}
return pal;
}

#include<iostream>

using namespace std;

struct sentence{

char str[50];

};

struct sentence obj;

int countPalindrome(char str[50], int st, int ed);

int main()

{

int pal = 0, len = 0, i, start = 0, end;

cout<<"\n\n\t Enter any sentence : ";

cin.getline (obj.str, 50);

while(obj.str[len]!='\0')

len++;

len--;

for(i=0;i<=len;i++)

{

if((obj.str[i] == ' ' && obj.str[i+1] != ' ') || i == len)

{

if(i == len)

end = i;

else

end = i - 1;

if( countPalindrome (obj.str, start, end ) )

pal++;

start = end + 2;

}

cout<<"\n\n\t the total number of palindrome are :" <<pal;

return 0;

}

int countPalindrome(char str[50], int st, int ed)

{

int i, pal=0;

for(i=0; i<=(ed-st)/2; i++)

{

if(str[st+i] == str[ed-i])

pal = 1;

else

{

pal = 0;

break;

}

return pal;

}

Printing Reverse Rectangle using numbers


#include <iostream>
using namespace std;

int main(int argc, char *argv[]) {
int count = 5;
int i,j,k;

for(i = 0 ; i<5; i++)
{
	for(j=0; j<i; j++)
	cout<<" ";
	for(k=count; k>0; k-- )
        cout<<k;	
	count--;
	cout<<"\n";
}
return 0;
}

#include <iostream>

using namespace std;

int main(int argc, char *argv[]) {

int count = 5;

int i,j,k;

for(i = 0 ; i<5; i++)

{

for(j=0; j<i; j++)

cout<<" ";

for(k=count; k>0; k-- )

cout<<k;

count--;

cout<<"\n";

}

return 0;

}

Printing Triangle Pattern using numbers


#include<iostream>
using namespace std;

int main(int argc, char *argv[]) {
int count = 0;
int i,j;
int rows = 5;

for(i = 0 ; i<rows; i++)
{
	if(i<=(rows/2))
	count++;
	else
	count--;
	
	for(j=1; j<=count; j++ )
        cout<<j;	
    cout<<"\n";
}

return 0;
}

#include<iostream>

using namespace std;

int main(int argc, char *argv[]) {

int count = 0;

int i,j;

int rows = 5;

for(i = 0 ; i<rows; i++)

{

if(i<=(rows/2))

count++;

else

count--;

for(j=1; j<=count; j++ )

cout<<j;

cout<<"\n";

}

return 0;

}

C++ Program to calculate area of Rectangle


#include<iostream>
using namespace std;

float area(float length, float width){
    return (length*width);
}

int main()
{
float length, width, rec_area;

cout<<"\n Enter Length : ";
cin>>length;

cout<<"\n Enter Width : ";
cin>>width;

rec_area = area(length, width);

cout<<"\n Area of Rectangle is : "<< rec_area;

return 0;
}

#include<iostream>

using namespace std;

float area(float length, float width){

return (length*width);

}

int main()

{

float length, width, rec_area;

cout<<"\n Enter Length : ";

cin>>length;

cout<<"\n Enter Width : ";

cin>>width;

rec_area = area(length, width);

cout<<"\n Area of Rectangle is : "<< rec_area;

return 0;

}

C++ Program of Recursion


#include<iostream>
using namespace std;

int factorial(int no)
{
int number = 1;    
if(no == 1)
return 1;

number =  no * factorial(no -1);
return number;


}
int main()
{
int no;

cout<<"\n Enter any number : ";
cin>>no;

cout<<"\n Factorial is : "<< factorial(no);

return 0;
}

#include<iostream>

using namespace std;

int factorial(int no)

{

int number = 1;

if(no == 1)

return 1;

number = no * factorial(no -1);

return number;

}

int main()

{

int no;

cout<<"\n Enter any number : ";

cin>>no;

cout<<"\n Factorial is : "<< factorial(no);

return 0;

}

C++ program to find avg of top 4 score


#include<iostream>
using namespace std;

void getScore(float &score)
{
cout<<"\n Enter test score : ";
cin>>score;
}

float  findLowest(float arr[])
{
float lowest = arr[0];

for(int i = 1 ; i<5; i++)
{ 
 if(lowest>arr[i])
 {
     lowest = arr[i];
 }
}

cout<<"\n Lowest is : "<<lowest;

return lowest;
}

void calcAverage(float arr[]){

float lowest = findLowest(arr);
float avg = 0;

for(int i = 0; i< 5; i++)
{
if(arr[i] !=  lowest)
avg = avg + arr[i];
}
avg = avg/4;
cout<<"\n Average is : "<< avg;
}

int main()
{
float arr[5];
for(int i = 0; i< 5; i++)
{
   getScore(arr[i]);
}

calcAverage(arr);
return 0;
}

#include<iostream>

using namespace std;

void getScore(float &score)

{

cout<<"\n Enter test score : ";

cin>>score;

}

float findLowest(float arr[])

{

float lowest = arr[0];

for(int i = 1 ; i<5; i++)

{

if(lowest>arr[i])

{

lowest = arr[i];

}

cout<<"\n Lowest is : "<<lowest;

return lowest;

}

void calcAverage(float arr[]){

float lowest = findLowest(arr);

float avg = 0;

for(int i = 0; i< 5; i++)

{

if(arr[i] != lowest)

avg = avg + arr[i];

}

avg = avg/4;

cout<<"\n Average is : "<< avg;

}

int main()

{

float arr[5];

for(int i = 0; i< 5; i++)

{

getScore(arr[i]);

}

calcAverage(arr);

return 0;

}

C++ program to calulate seconds in given time


#include<iostream>
using namespace std;

unsigned long int calcualteSeconds(unsigned int hours, unsigned int minutes, unsigned int seconds)
{
unsigned long calSec = 0;

calSec = hours * 60 * 60;
calSec = calSec + minutes * 60;
calSec = calSec + seconds;
return calSec;
}

int main()
{
unsigned int hours, minutes, seconds;
unsigned long int CalculateSeconds  = 0;

cout<<"\n Enter hours : ";
cin>>hours;

cout<<"\n Enter minutes : ";
cin>>minutes;

cout<<"\n Enter seconds : ";
cin>>seconds;

CalculateSeconds = calcualteSeconds(hours, minutes, seconds);
cout<<"\n No of Seconds are : "<< CalculateSeconds;

return 0;
}

#include<iostream>

using namespace std;

unsigned long int calcualteSeconds(unsigned int hours, unsigned int minutes, unsigned int seconds)

{

unsigned long calSec = 0;

calSec = hours * 60 * 60;

calSec = calSec + minutes * 60;

calSec = calSec + seconds;

return calSec;

}

int main()

{

unsigned int hours, minutes, seconds;

unsigned long int CalculateSeconds = 0;

cout<<"\n Enter hours : ";

cin>>hours;

cout<<"\n Enter minutes : ";

cin>>minutes;

cout<<"\n Enter seconds : ";

cin>>seconds;

CalculateSeconds = calcualteSeconds(hours, minutes, seconds);

cout<<"\n No of Seconds are : "<< CalculateSeconds;

return 0;

}

C++ program to check if sequence of nos are even or odd


#include<iostream>
using namespace std;

int even(int no)
{
if(no%2 == 0)
return 1;
else
return 0;
}

int main()
{
int no;
int result = 0;
cout<<"\n Enter any no: ";
cin>>no;

result = even(no);

if(result == 1)
cout<<"\n No is even";
else
cout<<"\n No is odd";


cout<<"\n Enter any no: ";
cin>>no;

result = even(no);

if(result == 1)
cout<<"\n No is even";
else
cout<<"\n No is odd";


cout<<"\n Enter any no: ";
cin>>no;

result = even(no);

if(result == 1)
cout<<"\n No is even";
else
cout<<"\n No is odd";


cout<<"\n Enter any no: ";
cin>>no;

result = even(no);

if(result == 1)
cout<<"\n No is even";
else
cout<<"\n No is odd";

return 0;
}

#include<iostream>

using namespace std;

int even(int no)

{

if(no%2 == 0)

return 1;

else

return 0;

}

int main()

{

int no;

int result = 0;

cout<<"\n Enter any no: ";

cin>>no;

result = even(no);

if(result == 1)

cout<<"\n No is even";

else

cout<<"\n No is odd";

cout<<"\n Enter any no: ";

cin>>no;

result = even(no);

if(result == 1)

cout<<"\n No is even";

else

cout<<"\n No is odd";

cout<<"\n Enter any no: ";

cin>>no;

result = even(no);

if(result == 1)

cout<<"\n No is even";

else

cout<<"\n No is odd";

cout<<"\n Enter any no: ";

cin>>no;

result = even(no);

if(result == 1)

cout<<"\n No is even";

else

cout<<"\n No is odd";

return 0;

}

C++ program to check if number is prime using function


#include<iostream>
using namespace std;

void isPrime(int no)
{
  bool isPrime = true;
  for(int i = 2; i <= no / 2; ++i)
  {
      if(no % i == 0)
      {
          isPrime = false;
          break;
      }
  }
  if (isPrime)
      cout << "This is a prime number";
  else
      cout << "This is not a prime number";
}

int main()
{
int no;
cout<<"\n Enter any no : ";
cin>>no;

isPrime(no);

return 0;
}

#include<iostream>

using namespace std;

void isPrime(int no)

{

bool isPrime = true;

for(int i = 2; i <= no / 2; ++i)

{

if(no % i == 0)

{

isPrime = false;

break;

}

if (isPrime)

cout << "This is a prime number";

else

cout << "This is not a prime number";

}

int main()

{

int no;

cout<<"\n Enter any no : ";

cin>>no;

isPrime(no);

return 0;

}

C++ program to find power of any number without using pow() function


#include<iostream>
using namespace std;

unsigned long int integerPower(int base, unsigned int power)
{
unsigned long int val=  base;

for(unsigned long int i = 0; i< power-1; i ++)
{
  val = val * base; 
}

return val;
}

int main()
{
int base;
unsigned int power;
unsigned long int val = 0;

cout<<"\n Enter base (non zero) : ";
cin>>base;

cout<<"\n Enter power (positive) : ";
cin>>power;

val = integerPower(base, power);

cout<<"\n Result is : "<< val;

return 0;
}

#include<iostream>

using namespace std;

unsigned long int integerPower(int base, unsigned int power)

{

unsigned long int val= base;

for(unsigned long int i = 0; i< power-1; i ++)

{

val = val * base;

}

return val;

}

int main()

{

int base;

unsigned int power;

unsigned long int val = 0;

cout<<"\n Enter base (non zero) : ";

cin>>base;

cout<<"\n Enter power (positive) : ";

cin>>power;

val = integerPower(base, power);

cout<<"\n Result is : "<< val;

return 0;

}

C++ program to calculate sales of 6 months


#include<iostream>
#include<string>

using namespace std;

void input(string *ptrMonthNamme, string *ptrSalesFig )
{
	for(int i = 0; i<6; i++)
	{
		 cout<<"\n\n Enter the sales figure of "<<*ptrMonthNamme<<" : ";
		 cin>>*ptrSalesFig;
		 
		 cout<<"\t The Memory location: "<<&ptrSalesFig;
		 ptrSalesFig++;
		 ptrMonthNamme++;

	}
}

double totaling(string *ptrSalesFig)
{
double sales = 0;
for(int i = 0; i<6; i++)
{
    double temp = 0;

	string s = *ptrSalesFig;
	const char *ctemp = s.c_str();

	ctemp++;
	temp = atof(ctemp);
    sales += temp;
	
	ptrSalesFig++;
}
return sales;
}

void listing(string *ptrMonthNamme, string * ptrSalesFig)
{
 for(int i = 0; i<6; i++)
 {
  cout<<"\n Sales for "<<*ptrMonthNamme<<" : "<<*ptrSalesFig;   
  ptrMonthNamme++;
  ptrSalesFig++;
 }
}

int main()
{

string  monthsName[] ={"Jan", "Feb", "Mar", "Apr", "May", "Jun"};
string salesFigures[6];

input(monthsName, salesFigures);
cout<<" \n\n Total sales is : "<<totaling(salesFigures);
listing(monthsName, salesFigures);

return 0;
}

#include<iostream>

#include<string>

using namespace std;

void input(string *ptrMonthNamme, string *ptrSalesFig )

{

for(int i = 0; i<6; i++)

{

cout<<"\n\n Enter the sales figure of "<<*ptrMonthNamme<<" : ";

cin>>*ptrSalesFig;

cout<<"\t The Memory location: "<<&ptrSalesFig;

ptrSalesFig++;

ptrMonthNamme++;

}

double totaling(string *ptrSalesFig)

{

double sales = 0;

for(int i = 0; i<6; i++)

{

double temp = 0;

string s = *ptrSalesFig;

const char *ctemp = s.c_str();

ctemp++;

temp = atof(ctemp);

sales += temp;

ptrSalesFig++;

}

return sales;

}

void listing(string *ptrMonthNamme, string * ptrSalesFig)

{

for(int i = 0; i<6; i++)

{

cout<<"\n Sales for "<<*ptrMonthNamme<<" : "<<*ptrSalesFig;

ptrMonthNamme++;

ptrSalesFig++;

}

int main()

{

string monthsName[] ={"Jan", "Feb", "Mar", "Apr", "May", "Jun"};

string salesFigures[6];

input(monthsName, salesFigures);

cout<<" \n\n Total sales is : "<<totaling(salesFigures);

listing(monthsName, salesFigures);

return 0;

}

C++ Program on Drinking/Vending Machine


#include<iostream>
#include<stdlib.h>
#include<string.h>
#include <iomanip>
using namespace std;

struct softdrink{
char  name[20];
float price;
unsigned quantity;
};


int main()
{
softdrink drink[5];

strcpy(drink[0].name,"Cola"); drink[0].price=0.75; drink[0].quantity=20;
strcpy(drink[1].name,"Root Beer"); drink[1].price=0.75; drink[1].quantity=20;
strcpy(drink[2].name,"Lemon Lime"); drink[2].price=0.75; drink[2].quantity=20;
strcpy(drink[3].name,"Grape Soda"); drink[3].price=0.80; drink[3].quantity=20;
strcpy(drink[4].name,"Cream Soda"); drink[4].price=0.80; drink[4].quantity=20;

std::cout << std::fixed;
std::cout << std::setprecision(4);
  
int choice = 1;

while(choice != 6){
cout<<"\n 1) "<<drink[0].name<<"\t\t"<<drink[0].price<<"\t("<<drink[0].quantity<<") remaining";
cout<<"\n 2) "<<drink[1].name<<"\t\t"<<drink[1].price<<"\t("<<drink[1].quantity<<") remaining";
cout<<"\n 3) "<<drink[2].name<<"\t\t"<<drink[2].price<<"\t("<<drink[2].quantity<<") remaining";
cout<<"\n 4) "<<drink[3].name<<"\t\t"<<drink[3].price<<"\t("<<drink[3].quantity<<") remaining";
cout<<"\n 5) "<<drink[4].name<<"\t\t"<<drink[4].price<<"\t("<<drink[4].quantity<<") remaining";
cout<<"\n 6) Leave the drink machine \n\n";
cout<<"\n Choose one:";
cin>>choice;

if(choice >=1 && choice <=5)
{
    if(drink[choice-1].quantity == 0)
    {
        cout<<"\n No more " << drink[choice-1].name <<" Available ..";
        getchar(); getchar();continue;
    }
}

if(choice == 6)
cout<<"Thank for using it !!";
else if(choice <= 5)
{
float money;
cout<<"\n Enter any amount of money: ";
cin>>money;

float price;
if(choice>=1 && choice <=3)
{
price = .75;
if((money <price)){
cout<<"\n Enter sufficient amount ";
getchar(); getchar();
continue;
}
}
else if(choice ==4 || choice ==5)
{
price = .80;
if((money <price)){
cout<<"\n Enter sufficient amount ";
getchar();getchar();
continue;
}
}
cout<<"\n Thum, thum, thum, splat !";
cout<<"\n Enjoy your beverage ";
cout<<"\n\n Change calcualted : "<< money-price;
cout<<"\n You change, "<<money-price<<" just droped into the Change Dispenser.";
drink[choice-1].quantity = drink[choice-1].quantity - 1;

cout<<"\n There are "<< drink[choice-1].quantity <<" drinks of that type left";

getchar();
getchar();

}
else
{
cout<<"\n Warning : Invalid Choice ";
}

}

return 0;
}

#include<iostream>

#include<stdlib.h>

#include<string.h>

#include <iomanip>

using namespace std;

struct softdrink{

char name[20];

float price;

unsigned quantity;

};

int main()

{

softdrink drink[5];

strcpy(drink[0].name,"Cola"); drink[0].price=0.75; drink[0].quantity=20;

strcpy(drink[1].name,"Root Beer"); drink[1].price=0.75; drink[1].quantity=20;

strcpy(drink[2].name,"Lemon Lime"); drink[2].price=0.75; drink[2].quantity=20;

strcpy(drink[3].name,"Grape Soda"); drink[3].price=0.80; drink[3].quantity=20;

strcpy(drink[4].name,"Cream Soda"); drink[4].price=0.80; drink[4].quantity=20;

std::cout << std::fixed;

std::cout << std::setprecision(4);

int choice = 1;

while(choice != 6){

cout<<"\n 1) "<<drink[0].name<<"\t\t"<<drink[0].price<<"\t("<<drink[0].quantity<<") remaining";

cout<<"\n 2) "<<drink[1].name<<"\t\t"<<drink[1].price<<"\t("<<drink[1].quantity<<") remaining";

cout<<"\n 3) "<<drink[2].name<<"\t\t"<<drink[2].price<<"\t("<<drink[2].quantity<<") remaining";

cout<<"\n 4) "<<drink[3].name<<"\t\t"<<drink[3].price<<"\t("<<drink[3].quantity<<") remaining";

cout<<"\n 5) "<<drink[4].name<<"\t\t"<<drink[4].price<<"\t("<<drink[4].quantity<<") remaining";

cout<<"\n 6) Leave the drink machine \n\n";

cout<<"\n Choose one:";

cin>>choice;

if(choice >=1 && choice <=5)

{

if(drink[choice-1].quantity == 0)

{

cout<<"\n No more " << drink[choice-1].name <<" Available ..";

getchar(); getchar();continue;

}

if(choice == 6)

cout<<"Thank for using it !!";

else if(choice <= 5)

{

float money;

cout<<"\n Enter any amount of money: ";

cin>>money;

float price;

if(choice>=1 && choice <=3)

{

price = .75;

if((money <price)){

cout<<"\n Enter sufficient amount ";

getchar(); getchar();

continue;

}

else if(choice ==4 || choice ==5)

{

price = .80;

if((money <price)){

cout<<"\n Enter sufficient amount ";

getchar();getchar();

continue;

}

cout<<"\n Thum, thum, thum, splat !";

cout<<"\n Enjoy your beverage ";

cout<<"\n\n Change calcualted : "<< money-price;

cout<<"\n You change, "<<money-price<<" just droped into the Change Dispenser.";

drink[choice-1].quantity = drink[choice-1].quantity - 1;

cout<<"\n There are "<< drink[choice-1].quantity <<" drinks of that type left";

getchar();

}

else

{

cout<<"\n Warning : Invalid Choice ";

}

return 0;

}

How to initialize const variables of any class in C++


#include <iostream>
#include<math.h>
using namespace std;

class circle{
	double r;
	const double pi;
	public:
	circle(double r) : pi(3.14159){
	this->r=r;
	}
	double area (){
		return pi*(pow(r,2));
	}
	double circumference (){
		return 2*pi*r;
	}
	
};

int main(){
	circle c=circle(6.70);
	cout<<"area of circle :"<<c.area()<<endl;
	cout<<"circumference of circle :"<<c.circumference ()<<endl;
	return 0;
}

#include <iostream>

#include<math.h>

using namespace std;

class circle{

double r;

const double pi;

public:

circle(double r) : pi(3.14159){

this->r=r;

}

double area (){

return pi*(pow(r,2));

}

double circumference (){

return 2*pi*r;

}

};

int main(){

circle c=circle(6.70);

cout<<"area of circle :"<<c.area()<<endl;

cout<<"circumference of circle :"<<c.circumference ()<<endl;

return 0;

}

C++ program that reads in the lines from a text file & displays it

Write a program that reads in the lines from a text file and displays them with line numbers and a colon. Limit the display to 24 lines at a time per the instructions. The output of the line numbers will be right aligned as shown below. The program may be handled in main.


#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>

using namespace std;

int main(int argc, char** argv) {
	
	string filename;
	cout<<"\n Enter the file name : ";
	cin>>filename;
    
    ifstream readFile(filename.c_str());
    string line;
    unsigned long int lineNo = 1;
	while(getline(readFile, line))	
	{
		cout<<"\n"<<setw(3)<<lineNo<<":" << line;
		
		
		if(lineNo%24 ==0)
		{
			cout<<"\n\t Press ENTER to continue...";
			getchar();getchar();
		}
		lineNo++;
		
	}	
	
	
	return 0;
}

#include <iostream>

#include <fstream>

#include <string>

#include <iomanip>

using namespace std;

int main(int argc, char** argv) {

string filename;

cout<<"\n Enter the file name : ";

cin>>filename;

ifstream readFile(filename.c_str());

string line;

unsigned long int lineNo = 1;

while(getline(readFile, line))

{

cout<<"\n"<<setw(3)<<lineNo<<":" << line;

if(lineNo%24 ==0)

{

cout<<"\n\t Press ENTER to continue...";

getchar();getchar();

}

lineNo++;

}

return 0;

}

C++ program to convert string into enum


#include <iostream>
#include <string>

enum Days {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday};

Days convert(const std::string& str)
{
    if(str == "Monday") return Monday;
    else if(str == "Tuesday") return Tuesday;
    else if(str == "Wednesday") return Wednesday;
    else if(str == "Thursday") return Thursday;
    else if(str == "Friday") return Friday;
    else if(str == "Saturday") return Saturday;
    else if(str == "Sunday") return Sunday;
    
}

int main()
{
    std::string str;
    std::cout<<"\n Enter any day in words (like Sunday, Monday) : ";
    std::cin >> str;

    Days day = convert(str);
    
    switch (day) {
        case Monday: std::cout << "This is Monday" << std::endl; break;
        case Tuesday: std::cout << "This is Tuesday" << std::endl; break;
        case Wednesday: std::cout << "This is Wednesday" << std::endl; break;
        case Thursday: std::cout << "This is Thursday" << std::endl; break;
        case Friday: std::cout << "This is Friday" << std::endl; break;
        case Saturday: std::cout << "This is Saturday" << std::endl; break;
        case Sunday: std::cout << "This is Sunday" << std::endl; break;
        default: std::cout<<"\n\n Inavlid Input";    
    }

    return 0;
}

#include <iostream>

#include <string>

enum Days {Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday};

Days convert(const std::string& str)

{

if(str == "Monday") return Monday;

else if(str == "Tuesday") return Tuesday;

else if(str == "Wednesday") return Wednesday;

else if(str == "Thursday") return Thursday;

else if(str == "Friday") return Friday;

else if(str == "Saturday") return Saturday;

else if(str == "Sunday") return Sunday;

}

int main()

{

std::string str;

std::cout<<"\n Enter any day in words (like Sunday, Monday) : ";

std::cin >> str;

Days day = convert(str);

switch (day) {

case Monday: std::cout << "This is Monday" << std::endl; break;

case Tuesday: std::cout << "This is Tuesday" << std::endl; break;

case Wednesday: std::cout << "This is Wednesday" << std::endl; break;

case Thursday: std::cout << "This is Thursday" << std::endl; break;

case Friday: std::cout << "This is Friday" << std::endl; break;

case Saturday: std::cout << "This is Saturday" << std::endl; break;

case Sunday: std::cout << "This is Sunday" << std::endl; break;

default: std::cout<<"\n\n Inavlid Input";

}

return 0;

}

C++ program to find sum of n numbers using function


#include <stdio.h>
#include <conio.h>

int sum (int number);

int main()
{
  int no;

  printf("\n How many numbers? : ");
  scanf("%d", &no);

  printf("\n Sum of the %d numbers is : %d ",no,sum(no));
  
  return 0;
  
}
int sum(int number){

  int i, addition=0;

  for(i=1; i<=number; i++){
    addition += i;
  }
  return addition;
}

#include <stdio.h>

#include <conio.h>

int sum (int number);

int main()

{

int no;

printf("\n How many numbers? : ");

scanf("%d", &no);

printf("\n Sum of the %d numbers is : %d ",no,sum(no));

return 0;

}

int sum(int number){

int i, addition=0;

for(i=1; i<=number; i++){

addition += i;

}

return addition;

}

C++ program on inheritance and virtual functions


#include<string.h>
#include<iostream>

using namespace std;

class Ship{
public: 
char name[50];
char yearBuilt[10];

Ship(){
   //nothing to do
}
    
Ship(char *name, char *yearBuilt){
strcpy(this->name, name);
strcpy(this->yearBuilt, yearBuilt);
}

virtual void print(){
cout<<" Name: "<<name;
cout<<"\n Year built: "<<yearBuilt<<endl;
}
};


class CruiseShip: public Ship{
private: 
int passenger;

public:
CruiseShip(char *name, char *yearBuilt, int passenger){
    strcpy(this->name, name);
    strcpy(this->yearBuilt, yearBuilt);
	this->passenger = passenger;
   }
   
void print(){
   cout<<" Name: "<<name;
   cout<<"\n Maximum Passenger: "<<passenger<<endl;
}	   

};


class CargoShip: public Ship{
private: 
long int capacity;
		
public:
CargoShip(char *name, char *yearBuilt, long int capacity){
	strcpy(this->name, name);
	strcpy(this->yearBuilt, yearBuilt);
	this->capacity = capacity;
}
	   
void print(){
	cout<<" Name: "<<name;
	cout<<"\n Cargo capacity: "<<capacity<< "tons"<<endl;
}
};

int main()
{
// Create an array of Ship pointers, initialized
// with the addresses of 3 dynamically allocated objects.

Ship *ships[3] = { new Ship("Lolipop", "1960"),
new CruiseShip("Disney Magic", "1998", 2400),
new CargoShip("Black Pearl", "1800", 50000)
};

// Call each object's print function.
for (int index=0; index < 3; index++)
{
    ships[index]->print();
    cout << "----------------------------\n";
}

return 0;
}

#include<string.h>

#include<iostream>

using namespace std;

class Ship{

public:

char name[50];

char yearBuilt[10];

Ship(){

//nothing to do

}

Ship(char *name, char *yearBuilt){

strcpy(this->name, name);

strcpy(this->yearBuilt, yearBuilt);

}

virtual void print(){

cout<<" Name: "<<name;

cout<<"\n Year built: "<<yearBuilt<<endl;

}

};

class CruiseShip: public Ship{

private:

int passenger;

public:

CruiseShip(char *name, char *yearBuilt, int passenger){

strcpy(this->name, name);

strcpy(this->yearBuilt, yearBuilt);

this->passenger = passenger;

}

void print(){

cout<<" Name: "<<name;

cout<<"\n Maximum Passenger: "<<passenger<<endl;

}

};

class CargoShip: public Ship{

private:

long int capacity;

public:

CargoShip(char *name, char *yearBuilt, long int capacity){

strcpy(this->name, name);

strcpy(this->yearBuilt, yearBuilt);

this->capacity = capacity;

}

void print(){

cout<<" Name: "<<name;

cout<<"\n Cargo capacity: "<<capacity<< "tons"<<endl;

}

};

int main()

{

// Create an array of Ship pointers, initialized

// with the addresses of 3 dynamically allocated objects.

Ship *ships[3] = { new Ship("Lolipop", "1960"),

new CruiseShip("Disney Magic", "1998", 2400),

new CargoShip("Black Pearl", "1800", 50000)

};

// Call each object's print function.

for (int index=0; index < 3; index++)

{

ships[index]->print();

cout << "----------------------------\n";

}

return 0;

}

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C++ program to convert string into mm/dd/yyyy format

C++ Program to check if number is Krishnamurthy

Finding Krishnamurthy numbers between 1 & 1000

Count the number of letters in the sentence

Count the number of words in the sentence

Count the punctuation marks in any sentence

Program to find if string is Palindrome

Program to count letters in each word of sentence

Count the vowels in the sentence

Is there a palindrome word the sentence

Printing Reverse Rectangle using numbers

Printing Triangle Pattern using numbers

C++ Program to calculate area of Rectangle

C++ Program of Recursion

C++ program to find avg of top 4 score

C++ program to calulate seconds in given time

C++ program to check if sequence of nos are even or odd

C++ program to check if number is prime using function

C++ program to find power of any number without using pow() function

C++ program to calculate sales of 6 months

C++ Program on Drinking/Vending Machine

How to initialize const variables of any class in C++

C++ program that reads in the lines from a text file & displays it

C++ program to convert string into enum

C++ program to find sum of n numbers using function

C++ program on inheritance and virtual functions

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