easy

code:->

#include <bits/stdc++.h>
using namespace std;

int main()
{
    int n;
    cin>>n;
    if(n%7==0) cout << "monday";
    else if(n%7==1) cout << "tuesday";
    else if(n%7==2) cout << "wednesday";
    else if(n%7==3) cout << "thursday";
    else if(n%7==4) cout << "friday";
    else if(n%7==5) cout << "saturday";
    else if(n%7==6) cout << "sunday";
    return 0;
}

AC

• if多写点