結果
問題 | No.1479 Matrix Eraser |
ユーザー | hamray |
提出日時 | 2021-04-16 21:04:17 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 6,192 bytes |
コンパイル時間 | 2,421 ms |
コンパイル使用メモリ | 190,632 KB |
実行使用メモリ | 18,980 KB |
最終ジャッジ日時 | 2024-07-02 23:58:16 |
合計ジャッジ時間 | 41,472 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 2 ms
6,940 KB |
testcase_06 | AC | 2 ms
6,944 KB |
testcase_07 | AC | 298 ms
6,944 KB |
testcase_08 | AC | 498 ms
6,944 KB |
testcase_09 | AC | 949 ms
9,464 KB |
testcase_10 | AC | 2,121 ms
14,108 KB |
testcase_11 | AC | 1,020 ms
10,468 KB |
testcase_12 | AC | 114 ms
6,940 KB |
testcase_13 | AC | 293 ms
6,944 KB |
testcase_14 | AC | 128 ms
6,944 KB |
testcase_15 | AC | 18 ms
6,948 KB |
testcase_16 | AC | 241 ms
6,940 KB |
testcase_17 | AC | 2,687 ms
15,980 KB |
testcase_18 | AC | 2,726 ms
16,004 KB |
testcase_19 | AC | 2,722 ms
15,872 KB |
testcase_20 | AC | 2,717 ms
16,040 KB |
testcase_21 | AC | 2,700 ms
16,032 KB |
testcase_22 | AC | 2,704 ms
15,972 KB |
testcase_23 | AC | 2,700 ms
15,948 KB |
testcase_24 | AC | 2,710 ms
15,996 KB |
testcase_25 | AC | 2,711 ms
15,956 KB |
testcase_26 | AC | 2,753 ms
16,008 KB |
testcase_27 | AC | 73 ms
6,940 KB |
testcase_28 | AC | 72 ms
6,944 KB |
testcase_29 | AC | 72 ms
6,940 KB |
testcase_30 | AC | 73 ms
6,940 KB |
testcase_31 | AC | 73 ms
6,944 KB |
testcase_32 | AC | 31 ms
6,940 KB |
testcase_33 | AC | 32 ms
7,120 KB |
testcase_34 | AC | 32 ms
6,988 KB |
testcase_35 | AC | 32 ms
6,940 KB |
testcase_36 | AC | 32 ms
6,944 KB |
testcase_37 | AC | 26 ms
6,944 KB |
testcase_38 | AC | 65 ms
6,940 KB |
testcase_39 | TLE | - |
testcase_40 | AC | 2 ms
6,944 KB |
ソースコード
#include <bits/stdc++.h> //#include <atcoder/all> //using namespace atcoder; #pragma GCC target ("avx2") #pragma GCC optimization ("O3") #pragma GCC optimization ("unroll-loops") using namespace std; typedef vector<int> VI; typedef vector<VI> VVI; typedef vector<string> VS; typedef pair<int, int> PII; typedef pair<int, int> pii; typedef pair<long long, long long> PLL; typedef pair<int, PII> TIII; typedef long long ll; typedef long double ld; typedef unsigned long long ull; #define FOR(i, s, n) for (int i = s; i < (int)n; ++i) #define REP(i, n) FOR(i, 0, n) #define rep(i, a, b) for (int i = a; i < (b); ++i) #define trav(a, x) for (auto &a : x) #define all(x) x.begin(), x.end() #define MOD 1000000007 template<class T1, class T2> inline bool chmax(T1 &a, T2 b) {if (a < b) {a = b; return true;} return false;} template<class T1, class T2> inline bool chmin(T1 &a, T2 b) {if (a > b) {a = b; return true;} return false;} const double EPS = 1e-12, PI = acos(-1); const double pi = 3.141592653589793238462643383279; //ここから編集 typedef string::const_iterator State; ll GCD(ll a, ll b){ return (b==0)?a:GCD(b, a%b); } ll LCM(ll a, ll b){ return a/GCD(a, b) * b; } template< int mod > struct ModInt { int x; ModInt() : x(0) {} ModInt(int64_t y) : x(y >= 0 ? y % mod : (mod - (-y) % mod) % mod) {} ModInt &operator+=(const ModInt &p) { if((x += p.x) >= mod) x -= mod; return *this; } ModInt &operator-=(const ModInt &p) { if((x += mod - p.x) >= mod) x -= mod; return *this; } ModInt &operator*=(const ModInt &p) { x = (int) (1LL * x * p.x % mod); return *this; } ModInt &operator/=(const ModInt &p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt &p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt &p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt &p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt &p) const { return ModInt(*this) /= p; } bool operator==(const ModInt &p) const { return x == p.x; } bool operator!=(const ModInt &p) const { return x != p.x; } ModInt inverse() const { int a = x, b = mod, u = 1, v = 0, t; while(b > 0) { t = a / b; swap(a -= t * b, b); swap(u -= t * v, v); } return ModInt(u); } ModInt pow(int64_t n) const { ModInt ret(1), mul(x); while(n > 0) { if(n & 1) ret *= mul; mul *= mul; n >>= 1; } return ret; } friend ostream &operator<<(ostream &os, const ModInt &p) { return os << p.x; } friend istream &operator>>(istream &is, ModInt &a) { int64_t t; is >> t; a = ModInt< mod >(t); return (is); } static int get_mod() { return mod; } }; using modint = ModInt< 998244353 >; template< typename T > struct Combination { vector< T > _fact, _rfact, _inv; Combination(int sz) : _fact(sz + 1), _rfact(sz + 1), _inv(sz + 1) { _fact[0] = _rfact[sz] = _inv[0] = 1; for(int i = 1; i <= sz; i++) _fact[i] = _fact[i - 1] * i; _rfact[sz] /= _fact[sz]; for(int i = sz - 1; i >= 0; i--) _rfact[i] = _rfact[i + 1] * (i + 1); for(int i = 1; i <= sz; i++) _inv[i] = _rfact[i] * _fact[i - 1]; } inline T fact(int k) const { return _fact[k]; } inline T rfact(int k) const { return _rfact[k]; } inline T inv(int k) const { return _inv[k]; } T P(int n, int r) const { if(r < 0 || n < r) return 0; return fact(n) * rfact(n - r); } T C(int p, int q) const { if(q < 0 || p < q) return 0; return fact(p) * rfact(q) * rfact(p - q); } T H(int n, int r) const { if(n < 0 || r < 0) return (0); return r == 0 ? 1 : C(n + r - 1, r); } }; ll modpow(ll x, ll n, ll mod) { ll res = 1; while(n) { if(n&1) res = (res * x) % mod; x = (x * x) % mod; n >>= 1; } return res; } inline long long mod(long long a, long long m) { return (a % m + m) % m; } struct HopcroftKarp { vector< vector< int > > graph; vector< int > dist, match; vector< bool > used, vv; HopcroftKarp(int n, int m) : graph(n), match(m, -1), used(n) {} 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; } } void output() { for(int i = 0; i < match.size(); i++) { if(~match[i]) { cout << match[i] << "-" << i << endl; } } } }; int main() { cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); int H, W; cin >> H >> W; vector<vector<int>> a(H, vector<int>(W,0)); REP(i,H) REP(j,W) cin >> a[i][j]; vector<int> v; v.push_back(0); REP(i,H) REP(j,W) v.push_back(a[i][j]); sort(all(v)); v.erase(unique(all(v)), v.end()); REP(i,H) REP(j,W) a[i][j] = lower_bound(all(v), a[i][j]) - v.begin(); vector<vector<int>> g(v.size()); REP(i,H) REP(j,W) { g[a[i][j]].push_back(i*W+j); } int ans = 0; for(int i=1; i<v.size(); i++) { HopcroftKarp bm(H, W); for(int j=0; j<g[i].size(); j++) { int y = g[i][j]/W, x = g[i][j]%W; bm.add_edge(y, x); } ans += bm.bipartite_matching(); } cout << ans << endl; return 0; }