In this example we will learn how to write a c++ program to print floyd’s triangle.
In C++ language, we can write different Floyd’s triangle number pattern program using nested for loop.
To understand this pattern, you must know how for loop and nested for loop works in C++ language
C++ floyd’s triangle number pattern programs:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #include <iostream> #include <conio.h> using namespace std; int main() { int i,j,row; cout<<"Enter the value for row :"; cin>>row; cout << "The number floyd's triangle patterns" << endl; for(i=1; i<=row; i++ ){ for(j=1; j<=i; j++ ){ cout<<i<<" "; } cout<< endl; } getch(); return 0; } |
When the above code is executed, it produces the following results:
1 2 3 4 5 6 7 8 9 10 11 12 | Enter the value for the row: 8 The number Floyd's triangle pattern 1 22 333 4444 55555 666666 7777777 88888888 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #include <iostream> #include <conio.h> using namespace std; int main() { int i,j,row; cout<<"Enter the value for row :"; cin>>row; cout << "The number floyd's triangle patterns" << endl; for(i=1; i<=row; i++ ){ for(j=1; j<=i; j++ ){ cout<<j<<" "; } cout<< endl; } getch(); return 0; } |
When the above code is executed, it produces the following results:
1 2 3 4 5 6 7 8 9 10 11 | Enter the value for the row: 7 The number Floyd's triangle pattern 1 12 123 1234 12345 123456 1234567 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include <iostream> #include <conio.h> using namespace std; int main() { int i,j,k=1,rows; cout<<"Enter number of rows"; cin>>rows; cout<<"You entered 8 \n here your triangle pattern\n"; for(i=1; i<=rows; i++){ for(j=1; j<=i; j++){ cout<<k<<" "; k++; } cout<< endl; } getch(); return 0; } |
When the above code is executed, it produces the following results:
1 2 3 4 5 6 7 8 9 10 11 12 13 | Enter number of rows: 8 you entered 8 here your triangle pattern 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 |
inverted floyd’s triangle pattern printing using nested for loop
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #include <iostream> #include <conio.h> using namespace std; int main() { int i,j,rows; cout<<"Enter the number of rows you want :"; cin>>rows; cout << "here your "<<rows << " number of rows floyd's triangle"<<endl; for(i=rows; i>=1; i--){ for(j=1; j<=i; j++){ cout<<j<<" "; } cout<<endl; } getch(); return 0; } |
When the above code is executed, it produces the following results:
1 2 3 4 5 6 7 8 9 10 11 12 | Enter number of rows you want: 8 here your 8 number of Floyd's triangle 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 1 2 3 1 2 1 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | #include <iostream> using namespace std; int main() { int rows,n; cout<<"Enter the number of rows you want :"; cin>>rows; cout << "Here number pattern is:" << endl; for(int i=1; i<=rows; ++i) { n=rows-i; while(n>0) { cout<<" "; n--; } for(int j=i; j>=1; j--) { cout<<j; } cout<<"\n"; } return 0; } |
When the above code is executed, it produces the following results:
1 2 3 4 5 6 7 8 9 10 | 1 21 321 4321 54321 654321 7654321 87654321 |
