In this article, you will learn how to print the Butterfly Pattern in C++ language of the numbers using for loop statement.
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-----Enter the height of the pattern----- 6 -----This the butterfly pattern----- 1 1 1 2 2 1 1 2 3 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 5 5 4 3 2 1 1 2 3 4 5 6 6 5 4 3 2 1 1 2 3 4 5 5 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 3 2 1 1 2 2 1 1 1 |
You should have knowledge of the following topics in c++ programming to understand this program:
- C++
main()function - C++
cinobject - C++
coutobject - C++
forloop statement - C++
putchar()function
In this program, we used normal functions and statements to print the butterfly pattern in C++ language.
C++ Code:
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// Butterfly Pattern in C++ language of the numbers using for loop #include <iostream> using namespace std; int main() { int r, h, d, s; // r - denotes for pattern row // h - denotes for pattern height // d - denotes for digits // s - denotes for space cout << "-----Enter the height of the pattern-----\n"; cin >> h; cout << "\n-----This the butterfly pattern-----\n\n\n"; for(r = 1; r <= h - 1; r++) { cout << "\t"; for(d = 1; d <= r; d++) cout << d; for(s = 1; s <= 2 * (h - r); s++) cout << " "; putchar('\b'); for(d = r; d >= 1; d--) cout << d; putchar('\n'); } for(r = h; r >= 1; r--) { cout << "\t"; for(d = 1; d <= r; d++) cout << d; for(s = 1; s <= 2 * (h - r); s++) cout << " "; putchar('\b'); for(d = r; d >= 1; d--) cout << d; putchar('\n'); } return 0; } |
Output:
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-----Enter the height of the pattern----- 6 -----This the butterfly pattern----- 1 1 1 2 2 1 1 2 3 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 5 5 4 3 2 1 1 2 3 4 5 6 6 5 4 3 2 1 1 2 3 4 5 5 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 3 2 1 1 2 2 1 1 1 |
In this program, we have taken input 6 size of the pattern then made the calculation using the for loop statement & putchar() function.
