助教作業1-6

#include<stdio.h>
#include<stdlib.h>
int pow(int*);
int main(){
    int num;
    printf("輸入整數x:");
    scanf("%d",&num);
    printf("x的平方是:%d\n",pow(&num));
    system("PAUSE");
    return 0;
}
int pow(int*num){
    return (*num)*(*num);
}