結果
問題 | No.421 しろくろチョコレート |
ユーザー | siman |
提出日時 | 2022-03-15 04:11:59 |
言語 | C++17(clang) (17.0.6 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,897 bytes |
コンパイル時間 | 2,801 ms |
コンパイル使用メモリ | 144,616 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-21 16:56:24 |
合計ジャッジ時間 | 5,255 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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
6,816 KB |
testcase_01 | WA | - |
testcase_02 | AC | 2 ms
6,812 KB |
testcase_03 | WA | - |
testcase_04 | AC | 1 ms
6,940 KB |
testcase_05 | WA | - |
testcase_06 | AC | 1 ms
6,944 KB |
testcase_07 | WA | - |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | AC | 2 ms
6,944 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,944 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | AC | 2 ms
6,944 KB |
testcase_24 | AC | 1 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 1 ms
6,944 KB |
testcase_27 | AC | 2 ms
6,944 KB |
testcase_28 | AC | 3 ms
6,944 KB |
testcase_29 | AC | 2 ms
6,940 KB |
testcase_30 | AC | 2 ms
6,940 KB |
testcase_31 | AC | 4 ms
6,948 KB |
testcase_32 | AC | 3 ms
6,940 KB |
testcase_33 | WA | - |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,944 KB |
testcase_36 | WA | - |
testcase_37 | WA | - |
testcase_38 | WA | - |
testcase_39 | WA | - |
testcase_40 | AC | 3 ms
6,944 KB |
testcase_41 | AC | 1 ms
6,944 KB |
testcase_42 | WA | - |
testcase_43 | WA | - |
testcase_44 | AC | 4 ms
6,944 KB |
testcase_45 | WA | - |
testcase_46 | AC | 2 ms
6,940 KB |
testcase_47 | WA | - |
testcase_48 | AC | 3 ms
6,940 KB |
testcase_49 | AC | 2 ms
6,940 KB |
testcase_50 | AC | 2 ms
6,948 KB |
testcase_51 | AC | 4 ms
6,944 KB |
testcase_52 | WA | - |
testcase_53 | AC | 1 ms
6,940 KB |
testcase_54 | AC | 2 ms
6,940 KB |
testcase_55 | WA | - |
testcase_56 | WA | - |
testcase_57 | WA | - |
testcase_58 | WA | - |
testcase_59 | WA | - |
testcase_60 | WA | - |
testcase_61 | WA | - |
testcase_62 | AC | 2 ms
6,944 KB |
testcase_63 | AC | 1 ms
6,944 KB |
testcase_64 | AC | 2 ms
6,944 KB |
ソースコード
#include <cassert> #include <cmath> #include <algorithm> #include <iostream> #include <iomanip> #include <limits.h> #include <map> #include <queue> #include <set> #include <string.h> #include <vector> using namespace std; typedef long long ll; const int INF = INT_MAX; struct Edge { int to; int cap; int rev; Edge(int to = -1, int cap = -1, int rev = -1) { this->to = to; this->cap = cap; this->rev = rev; } }; const int MAX_N = 100; const int MAX_V = MAX_N * MAX_N + 10; int level[MAX_V]; int iter[MAX_V]; vector <Edge> G[MAX_V]; void add_edge(int from, int to, int cap) { G[from].push_back(Edge(to, cap, G[to].size())); G[to].push_back(Edge(from, 0, G[from].size() - 1)); } void bfs(int s) { memset(level, -1, sizeof(level)); queue<int> que; level[s] = 0; que.push(s); while (!que.empty()) { int v = que.front(); que.pop(); for (int i = 0; i < (int) G[v].size(); ++i) { Edge *e = &G[v][i]; if (e->cap > 0 && level[e->to] < 0) { level[e->to] = level[v] + 1; que.push(e->to); } } } } int dfs(int v, int t, int f) { if (v == t) return f; for (int &i = iter[v]; i < (int) G[v].size(); ++i) { Edge *e = &G[v][i]; if (e->cap > 0 && level[v] < level[e->to]) { int d = dfs(e->to, t, min(f, e->cap)); if (d > 0) { e->cap -= d; G[e->to][e->rev].cap += d; return d; } } } return 0; } int max_flow(int s, int t) { int flow = 0; for (;;) { bfs(s); if (level[t] < 0) return flow; memset(iter, 0, sizeof(iter)); int f; while ((f = dfs(s, t, INF)) > 0) { flow += f; } } } int DY[4] = {-1, 0, 1, 0}; int DX[4] = {0, 1, 0, -1}; int main() { int N, M; cin >> N >> M; string grid[N]; int counter[2] = {0, 0}; for (int i = 0; i < N; ++i) { cin >> grid[i]; for (int j = 0; j < M; ++j) { if (grid[i][j] == 'b') { counter[0]++; } else if (grid[i][j] == 'w') { counter[1]++; } } } int s = MAX_V - 2; int t = MAX_V - 1; for (int y = 0; y < N; ++y) { for (int x = 0; x < M; ++x) { int u = y * M + x; char ch = grid[y][x]; if (ch == '.') continue; if (ch == 'b') { add_edge(s, u, 1); } else { add_edge(u, t, 1); } for (int i = 0; i < 4; ++i) { int ny = y + DY[i]; int nx = x + DX[i]; if (ny < 0 || nx < 0 || N <= ny || M <= nx) continue; if (grid[ny][nx] == '.') continue; if (ch == grid[ny][nx]) continue; int v = ny * M + nx; add_edge(u, v, 1); } } } int mc = max_flow(s, t); int ans = 100 * mc; counter[0] -= mc; counter[1] -= mc; int pc = min(counter[0], counter[1]); ans += 10 * pc; counter[0] -= pc; counter[1] -= pc; ans += counter[0] + counter[1]; cout << ans << endl; return 0; }