結果
問題 | No.1341 真ん中を入れ替えて門松列 |
ユーザー | SSRS |
提出日時 | 2021-01-15 23:05:59 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 3,175 bytes |
コンパイル時間 | 2,260 ms |
コンパイル使用メモリ | 188,380 KB |
実行使用メモリ | 11,136 KB |
最終ジャッジ日時 | 2024-05-05 01:01:46 |
合計ジャッジ時間 | 8,324 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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
10,624 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | WA | - |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | WA | - |
testcase_07 | TLE | - |
testcase_08 | AC | 8 ms
5,504 KB |
testcase_09 | TLE | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
ソースコード
#include <bits/stdc++.h> using namespace std; const long long MAX = 1000000000; const long long INF = 1000000000000000; const long long INF2 = 10000; template <typename Cap, typename Cost> struct primal_dual{ struct edge{ int to, rev; Cap cap; Cost cost; edge(int to, int rev, Cap cap, Cost cost): to(to), rev(rev), cap(cap), cost(cost){ } }; int N; vector<vector<edge>> G; primal_dual(){ } primal_dual(int N): N(N), G(N){ } void add_edge(int from, int to, Cap cap, Cost cost){ int id1 = G[from].size(); int id2 = G[to].size(); G[from].push_back(edge(to, id2, cap, cost)); G[to].push_back(edge(from, id1, 0, - cost)); } pair<Cap, Cost> min_cost_flow(int s, int t, Cap F){ Cap flow = 0; Cost cost = 0; vector<Cost> h(N, 0); while (flow < F){ vector<Cap> m(N, INF2); vector<Cost> d(N, INF); vector<int> pv(N, -1); vector<int> pe(N, -1); vector<bool> used(N, false); priority_queue<pair<Cost, int>, vector<pair<Cost, int>>, greater<pair<Cost, int>>> pq; pq.push(make_pair(0, s)); d[s] = 0; while (!pq.empty()){ int v = pq.top().second; pq.pop(); if (!used[v]){ used[v] = true; if (v == t){ break; } int cnt = G[v].size(); for (int i = 0; i < cnt; i++){ int w = G[v][i].to; if (!used[w] && G[v][i].cap > 0){ Cost tmp = G[v][i].cost - h[w] + h[v]; if (d[w] > d[v] + tmp){ d[w] = d[v] + tmp; m[w] = min(m[v], G[v][i].cap); pv[w] = v; pe[w] = i; pq.push(make_pair(d[w], w)); } } } } } if (!used[t]){ break; } for (int i = 0; i < N; i++){ if (used[i]){ h[i] -= d[t] - d[i]; } } Cap c = min(m[t], F - flow); for (int i = t; i != s; i = pv[i]){ G[pv[i]][pe[i]].cap -= c; G[i][G[pv[i]][pe[i]].rev].cap += c; } flow += c; cost += c * (- h[s]); } return make_pair(flow, cost); } }; int main(){ int N; long long M; cin >> N >> M; vector<int> A(N), B(N), C(N); for (int i = 0; i < N; i++){ cin >> A[i] >> B[i] >> C[i]; if (A[i] == C[i]){ cout << "NO" << endl; return 0; } } sort(B.begin(), B.end()); primal_dual<int, long long> G(N * 4 + 2); int s = N * 4, t = N * 4 + 1; for (int i = 0; i < N; i++){ int L = lower_bound(B.begin(), B.end(), min(A[i], C[i])) - B.begin(); int R = upper_bound(B.begin(), B.end(), max(A[i], C[i])) - B.begin(); G.add_edge(s, i, 1, 0); if (L > 0){ G.add_edge(i, N + L - 1, 1, MAX - C[i]); } if (R < N){ G.add_edge(i, N * 2 + R, 1, 0); } } for (int i = 0; i < N; i++){ G.add_edge(N + i, N * 3 + i, 1, 0); G.add_edge(N * 2 + i, N * 3 + i, 1, MAX - B[i]); G.add_edge(N * 3 + i, t, 1, 0); } for (int i = 0; i < N - 1; i++){ G.add_edge(N + i + 1, N + i, N, 0); G.add_edge(N * 2 + i, N * 2 + i + 1, N, 0); } pair<int, long long> ans = G.min_cost_flow(s, t, N); if (ans.first < N){ cout << "NO" << endl; } else { cout << "YES" << endl; long long sum = MAX * N - ans.second; if (sum >= M){ cout << "KADOMATSU!" << endl; } else { cout << "NO" << endl; } } }