C++:抢火柴

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#include<stdio.h>
#include<time.h>
#include<stdlib.h>
int main()
{   srand((unsigned)time(NULL));//rand()随机函数种子定义
    int youfirst,getnum,totalnum,computergetnum;
    printf("please enter totalnum");
    scanf_s("%d",&totalnum);
    do
    {
        printf("\n who begins get? you(1),computer(0)");
        scanf_s("%d",&youfirst);
    }
    while(1!=youfirst&&0!=youfirst);
    while(1)//死循环，由break语句跳出
    {
        if(youfirst==1)
        {
            do
            {
                printf("\n the remain is %d please input how many sticks do you get",totalnum);
                scanf_s("%d",&getnum);
            }
            while(getnum<0||getnum>2||getnum>totalnum);
            totalnum-=getnum;
            if(totalnum==0)
            {
                printf("you win\n");
                break;
            }
            if(totalnum%3==0)
            {
                computergetnum=rand()%2+1;
                
            }
            else
            {
                computergetnum=totalnum%3;
            }
            totalnum-=computergetnum;
            printf("\n computer get %d ",computergetnum);
            if(totalnum==0)
            {
                printf("computer win");
                break;
            }
        }
        else//计算机先拿
        {
            if(totalnum%3==0)
            {
                computergetnum=rand()%2+1;
            }
            else
            {
                computergetnum=totalnum%3;
            }
            totalnum-=computergetnum;
            printf("\ncomputer get %d ",computergetnum);
            if(totalnum==0)
            {
                printf("computer win");
                break;
            }
            do
            {
                printf("\nthe remain is %d please input how many sticks do you get",totalnum);
                scanf_s("%d",&getnum);
            }
            while(getnum<0||getnum>2||getnum>totalnum);
            totalnum-=getnum;
            if(totalnum==0)
            {
                printf("you win");
                break;
            }
        }
    }
    return 0;
}

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