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× C Examples


Floyd's triangle is named after Robert Floyd and it is a right-angled triangular array of natural numbers. It is created by filling the rows of the triangle with consecutive natural numbers, starting with 1 at the top.

1
2  3
4  5  6
7  8  9  10
11 12 13 14 15 

Example:

In the below example, a function called FloydTriangle is defined. It requires one parameter to pass as number of rows in the triangle and prints the given number of rows of Floyd's triangle.

#include <stdio.h>

//function for floyd triangle
void FloydTriangle(int n){
  int value = 1;
  for(int i = 1; i <= n; i++) {
    for(int j = 1; j <= i; j++) {
      printf("%i ",value); 
      value++;
    }
    printf("\n"); 
  }
}

int main (){
  FloydTriangle(7);
  return 0;
}

The above code will give the following output:

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