結果
問題 | No.957 植林 |
ユーザー | niuez |
提出日時 | 2020-05-10 11:46:51 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 132 ms / 2,000 ms |
コード長 | 4,135 bytes |
コンパイル時間 | 1,870 ms |
コンパイル使用メモリ | 183,120 KB |
実行使用メモリ | 14,336 KB |
最終ジャッジ日時 | 2024-07-07 11:57:19 |
合計ジャッジ時間 | 6,600 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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
5,248 KB |
testcase_01 | AC | 1 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 27 ms
8,960 KB |
testcase_04 | AC | 35 ms
8,832 KB |
testcase_05 | AC | 19 ms
9,600 KB |
testcase_06 | AC | 43 ms
9,984 KB |
testcase_07 | AC | 26 ms
8,960 KB |
testcase_08 | AC | 14 ms
9,344 KB |
testcase_09 | AC | 14 ms
9,344 KB |
testcase_10 | AC | 15 ms
9,600 KB |
testcase_11 | AC | 14 ms
9,344 KB |
testcase_12 | AC | 15 ms
9,472 KB |
testcase_13 | AC | 13 ms
7,808 KB |
testcase_14 | AC | 15 ms
9,472 KB |
testcase_15 | AC | 14 ms
9,344 KB |
testcase_16 | AC | 13 ms
7,936 KB |
testcase_17 | AC | 13 ms
8,704 KB |
testcase_18 | AC | 95 ms
12,416 KB |
testcase_19 | AC | 105 ms
12,800 KB |
testcase_20 | AC | 103 ms
12,800 KB |
testcase_21 | AC | 105 ms
13,184 KB |
testcase_22 | AC | 111 ms
13,312 KB |
testcase_23 | AC | 118 ms
13,824 KB |
testcase_24 | AC | 123 ms
14,336 KB |
testcase_25 | AC | 122 ms
13,696 KB |
testcase_26 | AC | 123 ms
14,080 KB |
testcase_27 | AC | 121 ms
14,208 KB |
testcase_28 | AC | 124 ms
13,952 KB |
testcase_29 | AC | 119 ms
13,824 KB |
testcase_30 | AC | 120 ms
14,208 KB |
testcase_31 | AC | 91 ms
12,416 KB |
testcase_32 | AC | 103 ms
12,800 KB |
testcase_33 | AC | 102 ms
12,928 KB |
testcase_34 | AC | 107 ms
13,056 KB |
testcase_35 | AC | 111 ms
13,312 KB |
testcase_36 | AC | 117 ms
13,696 KB |
testcase_37 | AC | 121 ms
14,336 KB |
testcase_38 | AC | 121 ms
13,696 KB |
testcase_39 | AC | 132 ms
13,952 KB |
testcase_40 | AC | 122 ms
14,080 KB |
testcase_41 | AC | 12 ms
10,112 KB |
testcase_42 | AC | 12 ms
10,112 KB |
testcase_43 | AC | 17 ms
10,112 KB |
testcase_44 | AC | 20 ms
9,984 KB |
testcase_45 | AC | 2 ms
5,376 KB |
testcase_46 | AC | 2 ms
5,376 KB |
testcase_47 | AC | 1 ms
5,376 KB |
ソースコード
#include <vector> #include <iostream> #include <bitset> struct goldberg_tarjan { using cap_type = long long; struct edge { int to; cap_type cap; int rev; edge(int t, cap_type c, int r): to(t), cap(c), rev(r) {} }; int N; std::vector<std::vector<edge>> G; std::vector<cap_type> exc; std::vector<int> h; std::vector<std::vector<int>> que; std::vector<int> qi; std::vector<int> ei; std::bitset<1024> inque; const cap_type INF = 1e18; goldberg_tarjan(int n): N(n), G(n) {} void add_edge(int from, int to, cap_type cap, cap_type rev_cap = 0) { G[from].emplace_back(to, cap, (int)(G[to].size())); G[to].emplace_back(from, rev_cap, (int)(G[from].size() - 1)); } void push(int from, edge& e) { cap_type fl = std::min(exc[from], e.cap); e.cap -= fl; G[e.to][e.rev].cap += fl; exc[from] -= fl; exc[e.to] += fl; } void relabel(int v) { h[v] = N; for(int i = 0; i < G[v].size(); i++) { auto& e = G[v][i]; if(e.cap > 0 && h[v] > h[e.to] + 1) { ei[v] = i; h[v] = h[e.to] + 1; } } } std::vector<int> Q; int global_relabeling(int t) { for(int i = 0;i < N;i++) { que[i].clear(); qi[i] = 0; ei[i] = 0; } inque.reset(); int i = 0, qr = 0; Q[qr++] = t; h.assign(N, N); h[t] = 0; int hi = 0; while(i < qr) { int v = Q[i++]; hi = h[v]; if(exc[v] > 0 && v != t) { que[h[v]].push_back(v); inque.set(v); } for(const auto& e: G[v]) { if(G[e.to][e.rev].cap > 0 && h[v] + 1 < h[e.to]) { h[e.to] = h[v] + 1; Q[qr++] = e.to; } } } return hi; } cap_type max_flow(int s, int t) { exc.assign(N, 0); exc[s] = INF; h.assign(N, 0); Q.resize(N); int cnt = 0; que.assign(N, std::vector<int>()); qi.assign(N, 0); ei.assign(N, 0); global_relabeling(t); if(h[s] == N) return 0; for(int di = h[s]; di >= 0;) { if(qi[di] == que[di].size()) { di--; continue; } int v = que[di][qi[di]++]; inque.reset(v); if(exc[v] == 0 || v == t) continue; for(int& i = ei[v]; i < G[v].size(); i++) { auto& e = G[v][i]; if(e.cap > 0 && h[v] == h[e.to] + 1) { push(v, e); if(exc[e.to] > 0 && e.to != t && !inque.test(e.to)) { que[h[e.to]].push_back(e.to); inque.set(e.to); } if(exc[v] == 0) break; } } if(exc[v] == 0) continue; relabel(v); if(h[v] < N) { di = h[v]; que[h[v]].push_back(v); inque.set(v); } if(++cnt % (N * 2) == 0) { di = global_relabeling(t); } } return exc[t]; } }; #include <bits/stdc++.h> using namespace std; using i64 = long long; #define rep(i,s,e) for(i64 (i) = (s);(i) < (e);(i)++) #define all(x) x.begin(),x.end() template<class T> static inline std::vector<T> ndvec(size_t&& n, T val) noexcept { return std::vector<T>(n, std::forward<T>(val)); } template<class... Tail> static inline auto ndvec(size_t&& n, Tail&&... tail) noexcept { return std::vector<decltype(ndvec(std::forward<Tail>(tail)...))>(n, ndvec(std::forward<Tail>(tail)...)); } template<class T, class Cond> struct chain { Cond cond; chain(Cond cond) : cond(cond) {} bool operator()(T& a, const T& b) const { if(cond(a, b)) { a = b; return true; } return false; } }; template<class T, class Cond> chain<T, Cond> make_chain(Cond cond) { return chain<T, Cond>(cond); } int main() { cin.tie(nullptr); std::ios::sync_with_stdio(false); int H, W; cin >> H >> W; goldberg_tarjan gt(H + W + 2); int s = H + W; int t = s + 1; vector<i64> A(H, 0); rep(i,0,H) rep(j,0,W) { i64 g; cin >> g; A[i] += g; gt.add_edge(i, H + j, g); } i64 sum = 0; rep(i,0,H) { i64 r; cin >> r; i64 MIN = std::min(A[i], r); sum += r - MIN; gt.add_edge(s, i, A[i] - MIN); } rep(i,0,W) { i64 r; cin >> r; sum += r; gt.add_edge(H + i, t, r); } cout << sum - gt.max_flow(s, t) << "\n"; }