제출 #505879

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
505879	2022-01-11 09:17:26	Mazaalai	Chessboard (IZhO18_chessboard)	C++17	100 / 100	636 ms	2800 KiB

chessboard

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#include <bits/stdc++.h>
#define pb push_back
using namespace std;
using ll = long long;
using PII = pair <int, int>;
const ll INF = 1e18;
const int N = 1e5 + 5;
ll n, m, ans = INF;
vector <int> divs;
ll dp[N];
void add(int num) {
  if (num == n) return;
  divs.pb(num);
  ll len = n / num;
  dp[num] = (len * len + 1) / 2 * num * num;
}
int getCnt(int pos, int len) {
  int full = pos - (pos % len);
  int ret = (full / len + 1) / 2 * len;
  if ((full / len) % 2 == 0) ret += pos - full;
  return ret;
}
signed main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  // freopen("in.txt", "r", stdin);
  // freopen("out.txt", "w", stdout);
  cin >> n >> m;
  for (int i = 1; i * i <= n; i++) {
 
 
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