Floyd’s triangle in C
C program to print Floyd’s triangle: a user inputs how many rows of the triangle to print. The first four rows of Floyd’s triangle are:
1
2 3
4 5 6
7 8 9 10
In Floyd’s triangle, the nth row contains n numbers.
C program to print Floyd’s triangle
#include <stdio.h>
int main()
{
int n, i, c, a = 1;
printf(“Enter the number of rows of Floyd’s triangle to print\n“);
scanf(“%d”, &n);
for (i = 1; i <= n; i++)
{
for (c = 1; c <= i; c++)
{
printf(“%d “,a);
a++;
}
printf(“\n“);
}
return 0;
}
Output of program:
C program to print Floyd’s triangle using recursion
#include <stdio.h>
void print_floyd(int);
int main()
{
int n;
printf(“Input number of rows of Floyd’s triangle to print\n“);
scanf(“%d”, &n);
print_floyd(n);
return 0;
}
void print_floyd(int n) {
static int row = 1, c = 1;
int d;
if (n <= 0)
return;
for (d = 1; d <= row; ++d)
printf(“%d “, c++);
printf(“\n“);
row++;
print_floyd(—n);
}