/*
 * C Program to Display Floyd’s triangle
 */
#include <stdio.h>

main( )
{
    int i, j, k = 1;
    printf("floyds triangle is\n");
    for( i = 1; k <= 20; ++i )
        {
            for( j = 1; j <= i; ++j )
                printf( "%d ", k++ );
            printf( "\n\n" );
        }
    return 0;
}