Submission #917736

#TimeUsernameProblemLanguageResultExecution timeMemory
917736dilanyanChessboard (IZhO18_chessboard)C++17
39 / 100
58 ms1884 KiB
//-------------dilanyan------------\\ #define _CRT_SECURE_NO_WARNINGS #include<bits/stdc++.h> #include<stdio.h> using namespace std; //------------------KarginDefines--------------------\\ #define ll long long #define pb push_back #define all(u) (u).begin(), (u).end() #define pqueue priority_queue #define upper upper_bound #define lower lower_bound #define umap unordered_map #define uset unordered_set #define Kargin ios_base::sync_with_stdio(false);cin.tie(NULL); #define Usaco freopen(".in", "r", stdin); freopen(".out", "w", stdout); //-------------------KarginConstants------------------\\ const ll mod = 1000000007; const ll inf = 1e9 + 15; //-------------------KarginCode------------------------\\ const int N = 100005; ll x[N], y[N]; void KarginSolve() { ll n, k; cin >> n >> k; ll sq = sqrt(n); vector<ll> div; for (ll i = 1;i <= sq;i++) { if (n % i == 0) { div.pb(i); if (i * i != n) div.pb(n / i); } } for (int i = 0;i < k;i++) cin >> x[i] >> y[i] >> x[i] >> y[i]; ll ans = inf; for (ll d : div) { if (d == n) continue; ll c = (n * n) / (d * d); ll fw = c / 2, fb = (c + 1) / 2; fw *= d * d, fb *= d * d; for (int i = 0;i < k;i++) { int dx = (x[i] + d - 1) / d, dy = (y[i] + d - 1) / d; if (dx & 1) { if (dy & 1) fw++, fb--; else fw--, fb++; } else { if (dy & 1) fw--, fb++; else fw++, fb--; } } ans = min(ans, min(fw, fb)); } cout << ans << '\n'; } int main() { //Usaco Kargin; int test = 1; //cin >> test; while (test--) { KarginSolve(); } return 0; }

Compilation message (stderr)

chessboard.cpp:1:1: warning: multi-line comment [-Wcomment]
    1 | //-------------dilanyan------------\\
      | ^
chessboard.cpp:8:1: warning: multi-line comment [-Wcomment]
    8 | //------------------KarginDefines--------------------\\
      | ^
chessboard.cpp:22:1: warning: multi-line comment [-Wcomment]
   22 | //-------------------KarginConstants------------------\\
      | ^
chessboard.cpp:27:1: warning: multi-line comment [-Wcomment]
   27 | //-------------------KarginCode------------------------\\
      | ^
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