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. Total numbers in the triangle of n rows: n*(n+1)/2.
#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); // Please note space after %d
a++;
}
printf("\n");
}
return 0;
}
output:
Enter the number of rows of Floyd's triangle to print
C programming
output:
Enter the number of rows of Floyd's triangle to print
5
1
2 3
4 5 6
7 8 9 10
11 12 13 14 15
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