Write a program to print Floyd’s triangle using c language.

  #include<stdio.h>  
 int main()  
 {  
  int i,j,r,k=1;  
  printf("Enter the range: ");  
  scanf("%d",&r);  
  printf("Floyd’s triangle\n");  
  for(i=1;i<=r;i++)  
 {  
    for(j=1;j<=i;j++,k++)  
       printf(" %d",k);  
    printf("\n");  
  }  
  return 0;  
 }  
 Sample output:  
 Enter the range: 10  
 Floyd’s triangle  
  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  
  29 30 31 32 33 34 35 36  
  37 38 39 40 41 42 43 44 45  
  46 47 48 49 50 51 52 53 54 55