제출 #1296325

#제출 시각아이디문제언어결과실행 시간메모리
1296325LIAChessboard (IZhO18_chessboard)C++17
0 / 100
2 ms572 KiB
//
// Created by liasa on 28/11/2025.
//
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define lp(i, s, e) for (int i = s; i < e; ++i)
#define v vector

int n,k;
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cin>>n>>k;
  ll ans = ceil(n/2);
  ans*=n;
  cout<<ans;
}
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