How to write c program to print FLOYD’S triangle in C Programming ?

What is FLOYD’s Triangle ?

Floyd’s triangle is a right angled-triangle using the natural numbers

Example :

//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

Program :

#include<stdio.h>
int main(){
  int i,j,k=1;
  int range;
  printf("Enter the range: ");
  scanf("%d",&range);
  printf("FLOYD'S TRIANGLE : \n\n");
   for(i=1;i<=range;i++)
      {
      for(j=1;j<=i;j++,k++)
           printf("%d",k);
      printf("\n");
      }
  return 0;
}

Output : First Run

Enter the range: 4
FLOYD'S TRIANGLE : 
1
2 3
4 5 6
7 8 9 10