結果
問題 | No.119 旅行のツアーの問題 |
ユーザー | schwarzahl |
提出日時 | 2017-12-22 22:38:41 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 2,388 bytes |
コンパイル時間 | 2,677 ms |
コンパイル使用メモリ | 80,824 KB |
実行使用メモリ | 74,516 KB |
最終ジャッジ日時 | 2024-06-01 07:00:01 |
合計ジャッジ時間 | 9,642 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
(要ログイン)
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 | 315 ms
60,920 KB |
testcase_01 | TLE | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
ソースコード
import java.util.HashSet; import java.util.Scanner; import java.util.Set; public class Main { public static void main(String[] args) { Main main = new Main(); main.solveA(); } private void solveA() { Scanner sc = new Scanner(System.in); int N = sc.nextInt(); int[] B = new int[N]; int[] C = new int[N]; for (int i = 0; i < N; i++) { B[i] = sc.nextInt(); C[i] = sc.nextInt(); } int M = sc.nextInt(); int[] D = new int[M]; int[] E = new int[M]; for (int i = 0; i < M; i++) { D[i] = sc.nextInt(); E[i] = sc.nextInt(); } int ans = 0; // 0=s 2*N+1=t Integer[][] costGraph = new Integer[2*N+2][]; for (int i = 0; i < 2*N+2; i++) { costGraph[i] = new Integer[2*N+2]; } for (int i = 0; i < N; i++) { costGraph[0][i+1] = B[i]; costGraph[i+1][N+i+1] = B[i] + C[i]; costGraph[N+i+1][2*N+1] = C[i]; ans += B[i] + C[i]; } for (int i = 0; i < M; i++) { costGraph[N+1+D[i]][1+E[i]] = Integer.MAX_VALUE / 3; } for (int r = 0; r < 2 * N + 2; r++) { for (int c = 0; c < 2 * N + 2; c++) { System.err.print(costGraph[r][c] == null ? "Nil " : String.format("%3d", costGraph[r][c] > 999 ? 999 : costGraph[r][c]) + " "); } System.err.println(); } int current; do { current = flow(costGraph, 0, new HashSet<>(), Integer.MAX_VALUE / 3, 2 * N + 2); ans -= current; } while (current > 0); for (int r = 0; r < 2 * N + 2; r++) { for (int c = 0; c < 2 * N + 2; c++) { System.err.print(costGraph[r][c] == null ? "Nil " : String.format("%3d", costGraph[r][c] > 999 ? 999 : costGraph[r][c]) + " "); } System.err.println(); } System.out.println(ans); } private int flow(Integer[][] graph, int current_id, Set<Integer> pre_ids, int current_flow, int max_id) { pre_ids.add(current_id); if (current_id == max_id - 1) { return current_flow; } for (int id = 0; id < max_id; id++) { if (graph[current_id][id] != null && graph[current_id][id] > 0 && !pre_ids.contains(id)) { int nextFlow = current_flow < graph[current_id][id] ? current_flow : graph[current_id][id]; int maxFlow = flow(graph, id, new HashSet<>(pre_ids), nextFlow, max_id); if (maxFlow > 0) { graph[current_id][id] -= maxFlow; if (graph[id][current_id] == null) { graph[id][current_id] = 0; } graph[id][current_id] += maxFlow; return maxFlow; } } } return 0; } }