题解 | 明天星期几？

#include <stdio.h>

int main() 
{
    int a = 0;
    scanf("%d",&a);
    switch(a)
    {
        case 1:
        printf("%d\n",2);
        break;
        case 2:
        printf("%d\n",3);
        break;
        case 3:
        printf("%d\n",4);
        break;
        case 4:
        printf("%d\n",5);
        break;
        case 5:
        printf("%d\n",6);
        break;
        case 6:
        printf("%d\n",7);
        break;
        case 7:
        printf("%d\n",1);
        break;
    }
    return 0;
}