結果
問題 | No.421 しろくろチョコレート |
ユーザー | paruki |
提出日時 | 2016-09-09 22:42:44 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 15 ms / 2,000 ms |
コード長 | 3,356 bytes |
コンパイル時間 | 1,992 ms |
コンパイル使用メモリ | 180,456 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-23 07:04:57 |
合計ジャッジ時間 | 3,801 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | AC | 4 ms
6,940 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 2 ms
6,944 KB |
testcase_04 | AC | 2 ms
6,944 KB |
testcase_05 | AC | 2 ms
6,944 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 4 ms
6,940 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,940 KB |
testcase_10 | AC | 2 ms
6,940 KB |
testcase_11 | AC | 3 ms
6,940 KB |
testcase_12 | AC | 2 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 6 ms
6,940 KB |
testcase_17 | AC | 11 ms
6,944 KB |
testcase_18 | AC | 13 ms
6,944 KB |
testcase_19 | AC | 2 ms
6,944 KB |
testcase_20 | AC | 5 ms
6,944 KB |
testcase_21 | AC | 5 ms
6,940 KB |
testcase_22 | AC | 3 ms
6,944 KB |
testcase_23 | AC | 2 ms
6,940 KB |
testcase_24 | AC | 2 ms
6,940 KB |
testcase_25 | AC | 2 ms
6,940 KB |
testcase_26 | AC | 2 ms
6,940 KB |
testcase_27 | AC | 2 ms
6,944 KB |
testcase_28 | AC | 3 ms
6,940 KB |
testcase_29 | AC | 4 ms
6,944 KB |
testcase_30 | AC | 4 ms
6,940 KB |
testcase_31 | AC | 6 ms
6,944 KB |
testcase_32 | AC | 3 ms
6,940 KB |
testcase_33 | AC | 4 ms
6,944 KB |
testcase_34 | AC | 2 ms
6,940 KB |
testcase_35 | AC | 2 ms
6,940 KB |
testcase_36 | AC | 3 ms
6,940 KB |
testcase_37 | AC | 14 ms
6,944 KB |
testcase_38 | AC | 14 ms
6,944 KB |
testcase_39 | AC | 3 ms
6,944 KB |
testcase_40 | AC | 3 ms
6,944 KB |
testcase_41 | AC | 3 ms
6,944 KB |
testcase_42 | AC | 2 ms
6,944 KB |
testcase_43 | AC | 3 ms
6,940 KB |
testcase_44 | AC | 4 ms
6,944 KB |
testcase_45 | AC | 2 ms
6,944 KB |
testcase_46 | AC | 2 ms
6,940 KB |
testcase_47 | AC | 5 ms
6,944 KB |
testcase_48 | AC | 5 ms
6,940 KB |
testcase_49 | AC | 3 ms
6,940 KB |
testcase_50 | AC | 2 ms
6,944 KB |
testcase_51 | AC | 6 ms
6,944 KB |
testcase_52 | AC | 3 ms
6,944 KB |
testcase_53 | AC | 3 ms
6,944 KB |
testcase_54 | AC | 3 ms
6,940 KB |
testcase_55 | AC | 2 ms
6,944 KB |
testcase_56 | AC | 2 ms
6,940 KB |
testcase_57 | AC | 2 ms
6,940 KB |
testcase_58 | AC | 5 ms
6,944 KB |
testcase_59 | AC | 2 ms
6,940 KB |
testcase_60 | AC | 15 ms
6,940 KB |
testcase_61 | AC | 6 ms
6,944 KB |
testcase_62 | AC | 2 ms
6,940 KB |
testcase_63 | AC | 2 ms
6,940 KB |
testcase_64 | AC | 2 ms
6,940 KB |
ソースコード
#include "bits/stdc++.h" using namespace std; #define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i)) #define rep(i,j) FOR(i,0,j) #define each(x,y) for(auto &(x):(y)) #define mp make_pair #define all(x) (x).begin(),(x).end() #define debug(x) cout<<#x<<": "<<(x)<<endl #define smax(x,y) (x)=max((x),(y)) #define smin(x,y) (x)=min((x),(y)) #define MEM(x,y) memset((x),(y),sizeof (x)) #define sz(x) (int)(x).size() typedef long long ll; typedef pair<int, int> pii; typedef vector<int> vi; typedef vector<ll> vll; struct FlowEdge{ int to, cap, rev; FlowEdge(int to_, int cap_, int rev_):to(to_),cap(cap_),rev(rev_){ } }; class FordFulkerson{ public: FordFulkerson(){} FordFulkerson(int n) : G(n), used(n){} void add(int from, int to, int cap){ G[from].emplace_back(to, cap, (int)G[to].size() ); G[to].emplace_back(from, 0, (int)G[from].size() - 1 ); } int get(int s, int t){ int f = 1, res = 0; while (f){ fill(begin(used), end(used), false); f = dfs(s, t, INT_MAX); res += f; } return res; } private: vector<vector<FlowEdge>> G; vector<bool> used; int dfs(int v, int t, int f){ if (v == t) return f; used[v] = 1; for (auto &e : G[v]){ if (!used[e.to] && e.cap > 0){ int d = dfs(e.to, t, min(e.cap, f)); if (d > 0){ e.cap -= d; G[e.to][e.rev].cap += d; return d; } } } return 0; } }; int maxBipartiteMatching(int n, int m, const vector<int> &u, const vector<int> &v){ const int source = 0, sink = 1, offN = 2, offM = n + 2; const int V = n + m + 2, cap = 1; FordFulkerson maxFlow(V); for(int i = 0; i < n; ++i){ maxFlow.add(source, i + offN, cap); } for(int i = 0; i < m; ++i){ maxFlow.add(i + offM, sink, cap); } for(int i = 0; i < (int)u.size(); ++i){ maxFlow.add(u[i] + offN, v[i] + offM, cap); } return maxFlow.get(source, sink); } string nstr(){ static const int MAX_LEN = 101; static char res_[MAX_LEN]; scanf("%s",res_); return string(res_); } int ww[51][51], bb[51][51]; int main(){ int H, W; cin >> H >> W; vector<string> S(H); rep(y, H)S[y] = nstr(); int wn = 0, bn = 0; MEM(ww, -1); MEM(bb, -1); rep(y, H)rep(x, W){ if(S[y][x] == 'w')ww[y][x] = wn++; else if(S[y][x] == 'b')bb[y][x] = bn++; } vi us, vs; rep(y, H)rep(x, W){ if(ww[y][x] == -1)continue; if(x > 0 && bb[y][x - 1] != -1){ us.push_back(ww[y][x]); vs.push_back(bb[y][x - 1]); } if(x < W-1 && bb[y][x+1] != -1){ us.push_back(ww[y][x]); vs.push_back(bb[y][x+1]); } if(y > 0 && bb[y-1][x] != -1){ us.push_back(ww[y][x]); vs.push_back(bb[y-1][x]); } if(y < H-1 && bb[y+1][x] != -1){ us.push_back(ww[y][x]); vs.push_back(bb[y+1][x]); } } int ps = maxBipartiteMatching(wn, bn, us, vs); wn -= ps; bn -= ps; int ans = ps * 100; int mi = min(wn, bn); ans += mi * 10; wn -= mi; bn -= mi; ans += wn + bn; cout << ans << endl; }