我真的不会大一的c语言

这题咋做啊？

#include<stdio.h>
#include <stdlib.h>
int main()
{
    int x;
    int y;
    while(1) {
        scanf("%d %d",&x, &y);
        if(x==0||y==0)
            printf("输入值需大于0,请重新输入\n");
        else if(x>1000||y>1000)
            printf("输入值需小于1000,请重新输入\n");
        else
            break;

    };
    printf("x=%d, y=%d\n",x,y);
    printf("%d+%d: %d\n",x,y,x+y);
    printf("%d-%d: %d\n",x,y,x-y);
    printf("%d*%d: %d\n",x,y,x*y);
    ldiv_t a = ldiv(x, y);
    printf("%d / %d quotient: %ld, remainder: %ld\n",x,y , a.quot, a.rem);
    printf("%d^2: %d\n",x,x*x);
    printf("%d^3: %d\n",y,y*y*y);
}