結果
問題 | No.1479 Matrix Eraser |
ユーザー | otera |
提出日時 | 2021-04-16 22:04:52 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 181 ms / 3,000 ms |
コード長 | 7,768 bytes |
コンパイル時間 | 2,691 ms |
コンパイル使用メモリ | 216,804 KB |
実行使用メモリ | 23,808 KB |
最終ジャッジ日時 | 2024-07-03 01:51:38 |
合計ジャッジ時間 | 8,265 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 12 ms
14,960 KB |
testcase_01 | AC | 13 ms
14,952 KB |
testcase_02 | AC | 12 ms
15,104 KB |
testcase_03 | AC | 12 ms
14,976 KB |
testcase_04 | AC | 11 ms
15,104 KB |
testcase_05 | AC | 12 ms
14,908 KB |
testcase_06 | AC | 13 ms
14,976 KB |
testcase_07 | AC | 32 ms
16,000 KB |
testcase_08 | AC | 45 ms
16,640 KB |
testcase_09 | AC | 83 ms
18,388 KB |
testcase_10 | AC | 150 ms
21,052 KB |
testcase_11 | AC | 97 ms
18,944 KB |
testcase_12 | AC | 37 ms
16,256 KB |
testcase_13 | AC | 46 ms
16,640 KB |
testcase_14 | AC | 38 ms
16,256 KB |
testcase_15 | AC | 17 ms
15,348 KB |
testcase_16 | AC | 41 ms
16,384 KB |
testcase_17 | AC | 181 ms
22,144 KB |
testcase_18 | AC | 179 ms
22,016 KB |
testcase_19 | AC | 181 ms
22,144 KB |
testcase_20 | AC | 177 ms
22,144 KB |
testcase_21 | AC | 178 ms
22,144 KB |
testcase_22 | AC | 178 ms
22,072 KB |
testcase_23 | AC | 179 ms
22,220 KB |
testcase_24 | AC | 178 ms
22,144 KB |
testcase_25 | AC | 179 ms
22,016 KB |
testcase_26 | AC | 181 ms
22,112 KB |
testcase_27 | AC | 171 ms
17,696 KB |
testcase_28 | AC | 170 ms
17,548 KB |
testcase_29 | AC | 170 ms
17,536 KB |
testcase_30 | AC | 171 ms
17,580 KB |
testcase_31 | AC | 171 ms
17,604 KB |
testcase_32 | AC | 123 ms
19,504 KB |
testcase_33 | AC | 124 ms
19,508 KB |
testcase_34 | AC | 124 ms
19,688 KB |
testcase_35 | AC | 124 ms
19,356 KB |
testcase_36 | AC | 124 ms
19,492 KB |
testcase_37 | AC | 29 ms
17,188 KB |
testcase_38 | AC | 112 ms
17,004 KB |
testcase_39 | AC | 161 ms
23,808 KB |
testcase_40 | AC | 11 ms
14,976 KB |
ソースコード
/** * author: otera * created: 16.04.2021 20:18:53 **/ #include<bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using ull = unsigned long long; using uint = unsigned; const int inf=1e9+7; const ll INF=1LL<<60; #define repa(i, n) for(int i = 0; i < n; ++ i) #define repb(i, a, b) for(int i = a; i < b; ++ i) #define repc(i, a, b, c) for(int i = a; i < b; i += c) #define overload4(a, b, c, d, e, ...) e #define rep(...) overload4(__VA_ARGS__, repc, repb, repa)(__VA_ARGS__) #define rep1a(i, n) for(int i = 0; i <= n; ++ i) #define rep1b(i, a, b) for(int i = a; i <= b; ++ i) #define rep1c(i, a, b, c) for(int i = a; i <= b; i += c) #define rep1(...) overload4(__VA_ARGS__, rep1c, rep1b, rep1a)(__VA_ARGS__) #define per(i,n) for(int i=n-1;i>=0;i--) #define per1(i,n) for(int i=n;i>=1;i--) typedef pair<int, int> P; typedef pair<ll, ll> LP; #define pb push_back #define eb emplace_back #define fr first #define sc second #define all(c) c.begin(),c.end() #define lb(c, x) distance((c).begin(), lower_bound(all(c), (x))) #define ub(c, x) distance((c).begin(), upper_bound(all(c), (x))) #define Sort(a) sort(all(a)) #define Rev(a) reverse(all(a)) #define Uniq(a) sort(all(a));a.erase(unique(all(a)),end(a)) #define si(c) (int)(c).size() inline ll popcnt(ull a){ return __builtin_popcountll(a); } #define tpow(n) (1LL<<(n)) #define unless(A) if(!(A)) ll intpow(ll a, ll b){ ll ans = 1; while(b){ if(b & 1) ans *= a; a *= a; b /= 2; } return ans; } ll intpow(ll a, ll b, ll m) {ll ans = 1; while(b){ if(b & 1) (ans *= a) %= m; (a *= a) %= m; b /= 2; } return ans; } template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; } template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; } #define INT(...) int __VA_ARGS__;in(__VA_ARGS__) #define LL(...) ll __VA_ARGS__;in(__VA_ARGS__) #define ULL(...) ull __VA_ARGS__;in(__VA_ARGS__) #define STR(...) string __VA_ARGS__;in(__VA_ARGS__) #define CHR(...) char __VA_ARGS__;in(__VA_ARGS__) #define DBL(...) double __VA_ARGS__;in(__VA_ARGS__) #define LD(...) ld __VA_ARGS__;in(__VA_ARGS__) #define vec(type,name,...) vector<type>name(__VA_ARGS__) #define VEC(type,name,size) vector<type>name(size);in(name) #define vv(type,name,h,...) vector<vector<type>>name(h,vector<type>(__VA_ARGS__)) #define VV(type,name,h,w) vector<vector<type>>name(h,vector<type>(w));in(name) #define vvv(type,name,h,w,...) vector<vector<vector<type>>>name(h,vector<vector<type>>(w,vector<type>(__VA_ARGS__))) template <class T> using vc = vector<T>; template <class T> using vvc = vector<vc<T>>; template <class T> using vvvc = vector<vvc<T>>; template <class T> using vvvvc = vector<vvvc<T>>; template <class T> using pq = priority_queue<T>; template <class T> using pqg = priority_queue<T, vector<T>, greater<T>>; template<class T> void scan(T& a){ cin >> a; } template<class T> void scan(vector<T>& a){ for(auto&& i : a) scan(i); } void in(){} template <class Head, class... Tail> void in(Head& head, Tail&... tail){ scan(head); in(tail...); } void print(){ cout << ' '; } template<class T> void print(const T& a){ cout << a; } template<class T> void print(const vector<T>& a){ if(a.empty()) return; print(a[0]); for(auto i = a.begin(); ++i != a.end(); ){ cout << ' '; print(*i); } } int out(){ cout << '\n'; return 0; } template<class T> int out(const T& t){ print(t); cout << '\n'; return 0; } template<class Head, class... Tail> int out(const Head& head, const Tail&... tail){ print(head); cout << ' '; out(tail...); return 0; } #define CHOOSE(a) CHOOSE2 a #define CHOOSE2(a0,a1,a2,a3,a4,x,...) x #define debug_1(x1) cout<<#x1<<": "<<x1<<endl #define debug_2(x1,x2) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<endl #define debug_3(x1,x2,x3) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<endl #define debug_4(x1,x2,x3,x4) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<", "#x4<<": "<<x4<<endl #define debug_5(x1,x2,x3,x4,x5) cout<<#x1<<": "<<x1<<", "#x2<<": "<<x2<<", "#x3<<": "<<x3<<", "#x4<<": "<<x4<<", "#x5<<": "<<x5<<endl #ifdef DEBUG #define debug(...) CHOOSE((__VA_ARGS__,debug_5,debug_4,debug_3,debug_2,debug_1,~))(__VA_ARGS__) #define dump(...) { print(#__VA_ARGS__); print(":"); out(__VA_ARGS__); } #else #define debug(...) #define dump(...) #endif // struct Bipartite_Matching // { // vector< vector< int > > graph; // vector< int > dist, match; // vector< bool > used, vv; // Bipartite_Matching(int n, int m) // { // graph.resize(n); // match.assign(m, -1); // used.assign(n, false); // } // void add_edge(int u, int v) // { // graph[u].push_back(v); // } // void bfs() // { // dist.assign(graph.size(), -1); // queue< int > que; // for(int i = 0; i < graph.size(); i++) { // if(!used[i]) { // que.emplace(i); // dist[i] = 0; // } // } // while(!que.empty()) { // int a = que.front(); // que.pop(); // for(auto &b : graph[a]) { // int c = match[b]; // if(c >= 0 && dist[c] == -1) { // dist[c] = dist[a] + 1; // que.emplace(c); // } // } // } // } // bool dfs(int a) // { // vv[a] = true; // for(auto &b : graph[a]) { // int c = match[b]; // if(c < 0 || (!vv[c] && dist[c] == dist[a] + 1 && dfs(c))) { // match[b] = a; // used[a] = true; // return (true); // } // } // return (false); // } // int bipartite_matching() // { // int ret = 0; // while(true) { // bfs(); // vv.assign(graph.size(), false); // int flow = 0; // for(int i = 0; i < graph.size(); i++) { // if(!used[i] && dfs(i)) ++flow; // } // if(flow == 0) return (ret); // ret += flow; // } // } // }; struct Bipartite_Matching { vector< vector< int > > graph; vector< int > match, alive, used; int timestamp; Bipartite_Matching(int n) { timestamp = 0; graph.resize(n); alive.assign(n, 1); used.assign(n, 0); match.assign(n, -1); } void add_edge(int u, int v) { graph[u].push_back(v); graph[v].push_back(u); } bool dfs(int v) { used[v] = timestamp; for(int i = 0; i < graph[v].size(); i++) { int u = graph[v][i], w = match[u]; if(alive[u] == 0) continue; if(w == -1 || (used[w] != timestamp && dfs(w))) { match[v] = u; match[u] = v; return (true); } } return (false); } int bipartite_matching() { int ret = 0; for(int i = 0; i < graph.size(); i++) { if(alive[i] == 0) continue; if(match[i] == -1) { ++timestamp; ret += dfs(i); } } return (ret); } }; const int MAX = 500500; void solve() { INT(h, w); VV(int, a, h, w); int ans = 0; vvc<int> g(MAX); rep(i, h) { rep(j, w) { g[a[i][j]].eb(i * w + j); } } for(int x = MAX - 1; x > 0; -- x) { if(si(g[x]) == 0) continue; vc<int> p, q; for(int y: g[x]) { int i = y / w, j = y % w; p.eb(i), q.eb(j); } Uniq(p), Uniq(q); int n = si(p) + si(q); int m = si(g[x]); Bipartite_Matching bm(n); for(int y: g[x]) { int i = y / w, j = y % w; debug(x, i, j); bm.add_edge(lb(p, i), lb(q, j) + si(p)); // bm.add_edge(lb(q, j) + si(p), lb(p, i)); } int cost = bm.bipartite_matching(); debug(x, cost); ans += cost; } out(ans); } signed main() { ios::sync_with_stdio(false); cin.tie(0); // cout << fixed << setprecision(20); // INT(t); rep(i, t)solve(); solve(); return 0; }