《C语言及程序设计》程序阅读——洗牌

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//随机数发牌游戏的C语言实现：#include<stdio.h>#include<stdlib.h>#include<time.h>void initial(int* p)//初始化一付牌{    int i;    for(i=0;  i<52;  i++)        p[i]=(i/13+3)*100+i%13+1;}void xipai(int *p)//洗牌{    int i,x,y;    int t;    srand((int)time(0));    for(i=0;  i<200;  i++)    {        x=rand()%52;         //52中一个数        y=rand()%52;         //52中一个数        if(x!=y)        {            t=p[x];            p[x]=p[y];            p[y]=t;        }    }}void fapai(int* p,int* p1,int* p2,int* p3,int* p4)//发牌{    int i;    for(i=0;  i<13;  i++)    {        p1[i]=p[4*i];        p2[i]=p[4*i+1];        p3[i]=p[4*i+2];        p4[i]=p[4*i+3];    }}void paixu(int* p)//排序{      int i,j;    int t;    for(i=0;  i<13;  i++)        for(j=0;  j<13-i;  j++)        {            if(p[j]>p[j+1])            {                t=p[j];                p[j]=p[j+1];                p[j+1]=t;            }        }}void xianshi(int *p){    int i;    int f,d;    for(i=0;  i<13;  i++)    {        f=p[i]/100;//301~313,401~413,501~513,601~613        d=p[i]%100;//1~13        switch(f)        {        case 3:            printf("黑桃");            break;        case 4:            printf("红桃");            break;        case 5:            printf("梅花");            break;        case 6:            printf("方块");            break;        }        if(d<10&&d>1)        {            printf("%c ", (d+'0'));        }        else if(d==1)            printf("A ");        else if(d==11)            printf("J ");        else if(d==12)            printf("Q ");        else if(d==13)            printf("K ");        else if(d==10)            printf("10 ");    }    printf("\n");}int main(){    int pai[52],player1[13],player2[13],player3[13],player4[13];    initial(pai);    xipai(pai);    fapai(pai,player1,player2,player3,player4);    paixu(player1);    paixu(player2);    paixu(player3);    paixu(player4);    xianshi(player1);    xianshi(player2);    xianshi(player3);    xianshi(player4);    return 0;}

附：原错误粘贴来的C++代码

//随机数发牌游戏的C++实现：#include<iostream>#include<stdlib.h>#include<time.h>#include<cstdio>using namespace std;void initial(int* p)//初始化一付牌{    int i;    for(i=0; i<52; i++)        p[i]=(i/13+3)*100+i%13+1;}void xipai(int *p)//洗牌{    int i,x,y;    int t;    srand((int)time(0));    for(i=0; i<200; i++)    {        x=rand()%52; //52中一个数        y=rand()%52; //52中一个数        if(x!=y)        {            t=p[x];            p[x]=p[y];            p[y]=t;        }    }}void fapai(int* p,int* p1,int* p2,int* p3,int* p4)//发牌{    int i;    for(i=0; i<13; i++)    {        p1[i]=p[4*i];        p2[i]=p[4*i+1];        p3[i]=p[4*i+2];        p4[i]=p[4*i+3];    }}void paixu(int* p)//排序{    int i,j;    int t;    for(i=0; i<13; i++)        for(j=0; j<13-i; j++)        {            if(p[j]>p[j+1])            {                t=p[j];                p[j]=p[j+1];                p[j+1]=t;            }        }}void xianshi(int *p){    int i;    int f,d;    for(i=0; i<13; i++)    {        f=p[i]/100; //301~313,401~413,501~513,601~613        d=p[i]%100;//1~13        switch(f)        {        case 3:            cout<<"黑桃";            break;        case 4:            cout<<"红桃";            break;        case 5:            cout<<"梅花";            break;        case 6:            cout<<"方块";            break;        }        if(d<10&&d>1)        {            cout<<(char)(d+'0')<<" ";        }        else if(d==1)            cout<<"A ";        else if(d==11)            cout<<"J ";        else if(d==12)            cout<<"Q ";        else if(d==13)            cout<<"K ";        else if(d==10)            cout<<"10 ";    }    cout<<endl;}int main(){    int pai[52],player1[13],player2[13],player3[13],player4[13];    initial(pai);    xipai(pai);    fapai(pai,player1,player2,player3,player4);    paixu(player1);    paixu(player2);    paixu(player3);    paixu(player4);    xianshi(player1);    xianshi(player2);    xianshi(player3);    xianshi(player4);    return 0;}

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