似乎有些长

#include <bits/stdc++.h>
using namespace std;
int main () {
int a;
cin >> a;
(a == 1)?cout << "Monday":((a == 2)?cout << "Tuesday":((a == 3)?cout << "Wednesday":((a == 4)?cout << "Thursday":((a == 5)?cout << "Friday":((a == 6)?cout << "Saturday":((a == 7)?cout << "Sunday":cout << ""))))));
return 0;
}