(感觉多此一举)题解

没人想到用循环吗？

#include <bits/stdc++.h>
using namespace std;
int main(){
    int n,day = 1;
    cin >> n;
    for(int i = 1;i <= n;i++){
        day++;
        if(day > 7) day = 1;
    }
    if(day == 1) cout << "mon";
    if(day == 2) cout << "tues";
    if(day == 3) cout << "wednes";
    if(day == 4) cout << "thurs";
    if(day == 5) cout << "fri";
    if(day == 6) cout << "satur";
    if(day == 7) cout << "sun";
    cout << "day";
}