C program to generate floyd's triangle

#include <stdio.h>

int main()
{
int n,i,c,a = 1;

printf("enter the number of elements to print floyd's triangle\n");
scanf("%d",&n);

for (i = 1;i<= n;i++)
{
for (c = 1;c<= i;c++)
{
printf("%d ",a);
a++;
}
printf("\n");
}
return 0;
}