Exercise 4-9

 

#include <stdio.h>

 

int main() {

    int i,j;

    i=1;

    j=1;

    for (i;i<=9;i=i+1){

        for (j;j<=9;j=j+1){

            printf("%dx%d=%d ",i,j,i*j);

        }

        printf("\n");

        j=1;

    }

    return 0;

}