c program to print Floyd's triangle

C program to print Floyd's triangle:- This program prints Floyd's triangle. Number of rows of Floyd's triangle to print is entered by the user. First four rows of Floyd's triangle are as follows :-
1
2 3
4 5 6
7 8 9 10
It's clear that in Floyd's triangle nth row contains n numbers.

#include<stdio.h>

#include<conio.h>

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);

         a++;

      }

      printf("\n");

   }

    getch();

   return 0;

}