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 23:48:55 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,087 bytes |
コンパイル時間 | 2,293 ms |
コンパイル使用メモリ | 77,736 KB |
実行使用メモリ | 61,752 KB |
最終ジャッジ日時 | 2024-06-01 07:00:48 |
合計ジャッジ時間 | 13,447 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | WA | - |
testcase_01 | AC | 724 ms
55,088 KB |
testcase_02 | AC | 129 ms
54,084 KB |
testcase_03 | AC | 127 ms
53,972 KB |
testcase_04 | AC | 131 ms
54,012 KB |
testcase_05 | AC | 166 ms
54,308 KB |
testcase_06 | AC | 184 ms
54,388 KB |
testcase_07 | AC | 127 ms
53,848 KB |
testcase_08 | AC | 116 ms
52,800 KB |
testcase_09 | AC | 132 ms
54,044 KB |
testcase_10 | AC | 140 ms
54,092 KB |
testcase_11 | AC | 133 ms
54,116 KB |
testcase_12 | AC | 139 ms
54,000 KB |
testcase_13 | AC | 131 ms
54,260 KB |
testcase_14 | AC | 135 ms
53,916 KB |
testcase_15 | AC | 170 ms
54,220 KB |
testcase_16 | AC | 198 ms
56,712 KB |
testcase_17 | AC | 140 ms
53,924 KB |
testcase_18 | AC | 172 ms
54,324 KB |
testcase_19 | AC | 160 ms
54,476 KB |
testcase_20 | AC | 325 ms
54,732 KB |
testcase_21 | TLE | - |
testcase_22 | -- | - |
ソースコード
import java.util.Scanner; 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++) { int small = B[i] < C[i] ? B[i] : C[i]; costGraph[0][i+1] = B[i] - small; costGraph[i+1][N+i+1] = B[i] + C[i] - small; costGraph[N+i+1][2*N+1] = C[i] - small; ans += B[i] + C[i] - small; } for (int i = 0; i < M; i++) { costGraph[N+1+D[i]][1+E[i]] = Integer.MAX_VALUE / 3; } int current; int limitDepth = 0; do { current = flow(costGraph, 0, Integer.MAX_VALUE / 3, 2 * N + 2, 0, limitDepth); ans -= current; if (current == 0) { limitDepth++; } } while (limitDepth <= 12); // 12 > log(1^10) / log(N * 2) System.out.println(ans); } private int flow(Integer[][] graph, int current_id, int current_flow, int max_id, int depth, int limitDepth) { if (current_id == max_id - 1) { return current_flow; } if (depth >= limitDepth) { return 0; } int sum_flow = 0; for (int id = max_id - 1; id >= 0; id--) { if (graph[current_id][id] != null && graph[current_id][id] > 0) { int nextFlow = current_flow < graph[current_id][id] ? current_flow : graph[current_id][id]; int tmpFlow = flow(graph, id, nextFlow, max_id, depth+1, limitDepth); if (tmpFlow > 0) { graph[current_id][id] -= tmpFlow; if (graph[id][current_id] == null) { graph[id][current_id] = 0; } graph[id][current_id] += tmpFlow; sum_flow += tmpFlow; current_flow -= tmpFlow; } } } return sum_flow; } }