#include<iostream>  
using namespace std;
int main()
{enum weekday { mon, tus, wed, thu, fri, sat,sun }; //声明枚举类型 enum weekday day;  //定义枚举变量 int a, b, c, d, e, f, g, loop;  //定义整型变量 char ch = 'A';  //定义字符变量 f = thu;  //按照题意，F医生是星期四值班for (a = mon; a <= sun; a++)//需要逐个检查A医生星期几符合条件if (a != f)           //A医生值班日子不应该与F医生相同for (b = mon; b <= sun; b++)//逐个检查B医生星期几符合条件if (a != b)  //B医生值班日子不应该与A医生相同for (c = mon; c <= sun; c++)//逐个检查C医生星期几符合条件if ((c != a) && (c != b) && (c != f) && (a == (c + 1) % 7) && ((f > b) && (f < c) || (f > c) && (f < b)))//C医生值班日子不应该与A,B,F医生相同，且A比C晚1天 for (d = mon; d <= sun; d++)//逐个检查D医生星期几符合条件if ((d != a) && (d != b) && (d != c) && (d != f))  //D医生值班日子不应该与A,B,C,F医生相同for (e = mon; e <= sun; e++)//逐个检查E医生星期几符合条件if ((e != a) && (e != b) && (e != c) && (e != d) && (e != f) && (d == (e + 2) % 7)) //E值班不应该与A,B,C,D,E,F相同，且D比E晚2天for (g = mon; g <= sun; g++)//逐个检查G医生条件if ((g != a) && (g != b) && (g != c) && (g != d) && (g != e) && (g != f) && (g == (b + 3) % 7))  //G值班不应该与A,B,C,D,E,F相同，且G与B后3天//符合以上条件才能执行以下工作 for (loop = 0; loop < 7; loop++){cout << char(ch + loop) << "医生值班日:";switch (loop + 1){case 1:day = weekday(a); break;case 2:day = weekday(b); break;case 3:day = weekday(c); break;case 4:day = weekday(d); break;case 5:day = weekday(e); break;case 6:day = weekday(f); break;case 7:day = weekday(g); break;}switch (day){case mon:cout << "星期一" << endl; break;case tus:cout << "星期二" << endl; break;case wed:cout << "星期三" << endl; break;case thu:cout << "星期四" << endl; break;case fri:cout << "星期五" << endl; break;case sat:cout << "星期六" << endl; break;case sun:cout << "星期日" << endl; break;}}cout << endl;return 0;
}