Floyd's triangle

Q. Write a C program to floyd algorithm number triangle in C as:

  1
  2 3
  4 5 6
  7 8 9 10

Ans:

/* c program for floyd algorithm number triangle */

#include<stdio.h>

int main()

{

 int r,c,n,x=1;

 printf("Enter No. Of rows : ");

 scanf("%d", &n);

 for(r=1; r<=n; r++)

 {

   for(c=1; c<=r; c++,x++)

       printf(" %d",x);

   printf("\n");

 }

 getch();

 return 0;

}