题解

#include<bits/stdc++.h>
using namespace std;
int main(){
int n;
cin >> n;
if (n >= 7){
int a = n % 7;
if (a == 0) cout << "monday";
if (a == 1) cout << "tuesday";
if (a == 2) cout << "wednesday";
if (a == 3) cout << "thursday";
if (a == 4) cout << "friday";
if (a == 5) cout << "saturday";
if (a == 6) cout << "sunday";
}
else{
if (n == 0) cout << "monday";
if (n == 1) cout << "tuesday";
if (n == 2) cout << "wednesday";
if (n == 3) cout << "thursday";
if (n == 4) cout << "friday";
if (n == 5) cout << "saturday";
if (n == 6) cout << "sunday";
}
}