結果
問題 | No.421 しろくろチョコレート |
ユーザー |
|
提出日時 | 2020-08-21 02:01:28 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 100 ms / 2,000 ms |
コード長 | 2,535 bytes |
コンパイル時間 | 2,498 ms |
コンパイル使用メモリ | 201,436 KB |
最終ジャッジ日時 | 2025-01-13 04:36:54 |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
other | AC * 65 |
ソースコード
//#define _GLIBCXX_DEBUG#include <bits/stdc++.h>#define rep(i, n) for(int i=0; i<n; ++i)#define all(v) v.begin(), v.end()#define rall(v) v.rbegin(), v.rend()using namespace std;using ll = int64_t;using ld = long double;using P = pair<int, int>;using vs = vector<string>;using vi = vector<int>;using vvi = vector<vi>;template<class T> using PQ = priority_queue<T>;template<class T> using PQG = priority_queue<T, vector<T>, greater<T> >;const int INF = 0xccccccc;const ll LINF = 922337203685477580LL;template<typename T1, typename T2>inline bool chmax(T1 &a, T2 b) {return a < b && (a = b, true);}template<typename T1, typename T2>inline bool chmin(T1 &a, T2 b) {return a > b && (a = b, true);}template<typename T1, typename T2>istream &operator>>(istream &is, pair<T1, T2> &p) { return is >> p.first >> p.second;}template<typename T1, typename T2>ostream &operator<<(ostream &os, const pair<T1, T2> &p) { return os << p.first << ' ' << p.second;}struct BM {int V;vector<vector<int > > G;vector<int> match;vector<bool> used;BM(int n=0) : V(n), G(n), match(n, -1), used(n) {}inline void add(int u, int v) {G[u].emplace_back(v);G[v].emplace_back(u);}bool dfs(int v) {used[v] = true;for(int u:G[v]) {int w = match[u];if(w < 0 or (!used[w] and dfs(w))) {match[v] = u;match[u] = v;return true;}}return false;}int bipartite_matching() {int res = 0;for(int v = 0; v < V; v++) {if(match[v] < 0) {for(int i = 0; i < v; i++) used[i] = 0;if(dfs(v)) res++;}}return res;}};const int N = 55;//headint n, m;string s[N];int cnt;int di[] = {0, 1, 0, -1};int dj[] = {1, 0, -1, 0};inline bool able(int i, int j) {return i >= 0 and j >= 0 and i < n and j < m;}inline int num(int i, int j) {return i*m+j;}int ans;int main() {ios::sync_with_stdio(false);cin.tie(0);cin >> n >> m;BM bpm(n*m);rep(i, n) cin >> s[i];rep(i, n) rep(j, m) if(s[i][j] != '.') {cnt++;rep(k, 4) {int ni = i + di[k];int nj = j + dj[k];if(able(ni, nj) and s[ni][nj] != '.') {bpm.add(num(i, j), num(ni, nj));}}}ans += 100 * bpm.bipartite_matching();rep(i, n) rep(j, m) if(s[i][j] != '.') {rep(k, n) rep(l, m) if(s[i][j] != s[k][l] and s[k][l] != '.' and P(i, j) < P(k, l)) {bpm.add(num(i, j), num(k, l));}}ans += 8 * bpm.bipartite_matching() + cnt - ans/50;cout << ans << endl;}