Submission #535696

#	Time	Username	Problem	Language	Result	Execution time	Memory
535696		pokmui9909	다각형 (GA5_polygon)	C++17	0 / 100	1 ms	284 KiB

polygon

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

int main(){
    cin.tie(0) -> sync_with_stdio(false);

    ll L, R; cin >> L >> R;
    cout << (R == 1 ? 2 : (R / 2) * (R / 2 + 1)) - (L - 1 == 1 ? 2 : ((L - 1) / 2) * ((L - 1) / 2 + 1));
}

• Subtask 1: 0 / 60
• Subtask 2: 0 / 10
• Subtask 3: 0 / 30