c语言问题求大家指导

#include <stdio.h>
int main()
{
    int i, j, n;
    scanf("%d", &n);
    for (i = 1; i <= n; i++)
    {
        for (j = 1; j <= i; j++)
            printf("%dx%d=%2d  ", j, i, i * j);

        printf("\n");
    }
    return 0;
}