How to Print Pattern 1 23 456 78910 1112131415 in C

#include <stdio.h>

#include <conio.h>

void int rows, a,  b, number = 1;

printf("Number of rows of Floyd's triangle to print:");

scanf("%d",&rows);

for ( a = 1 ; a <= rows ; a++ ) {

for ( b = 1 ; b <= a ; b++ ) {

printf("%d ", number);

number++;

}

printf("\n");

}

}

Output:

1

23

456

78910

1112131415