結果
問題 | No.1288 yuki collection |
ユーザー | kaikey |
提出日時 | 2020-11-13 22:40:58 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,407 bytes |
コンパイル時間 | 2,169 ms |
コンパイル使用メモリ | 191,432 KB |
実行使用メモリ | 57,728 KB |
最終ジャッジ日時 | 2024-07-22 21:41:35 |
合計ジャッジ時間 | 54,932 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 | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 3 ms
5,376 KB |
testcase_09 | AC | 3 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 3 ms
5,376 KB |
testcase_13 | AC | 2,876 ms
34,704 KB |
testcase_14 | AC | 2,901 ms
34,616 KB |
testcase_15 | AC | 1,954 ms
29,264 KB |
testcase_16 | AC | 2,031 ms
29,260 KB |
testcase_17 | AC | 2,899 ms
34,152 KB |
testcase_18 | AC | 2,807 ms
34,760 KB |
testcase_19 | AC | 2,806 ms
34,492 KB |
testcase_20 | AC | 2,887 ms
35,132 KB |
testcase_21 | AC | 3,867 ms
47,284 KB |
testcase_22 | AC | 3,919 ms
47,292 KB |
testcase_23 | AC | 3,767 ms
46,536 KB |
testcase_24 | AC | 3,063 ms
34,788 KB |
testcase_25 | AC | 2,878 ms
35,392 KB |
testcase_26 | AC | 2,847 ms
34,984 KB |
testcase_27 | AC | 756 ms
20,480 KB |
testcase_28 | AC | 1,265 ms
28,548 KB |
testcase_29 | AC | 1,289 ms
31,268 KB |
testcase_30 | AC | 125 ms
32,384 KB |
testcase_31 | AC | 183 ms
33,280 KB |
testcase_32 | AC | 195 ms
32,512 KB |
testcase_33 | TLE | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
ソースコード
#include <bits/stdc++.h> #include <random> using namespace std; typedef unsigned long long _ulong; typedef long long int lint; typedef pair<lint, lint> plint; typedef pair<double long, double long> pld; #define ALL(x) (x).begin(), (x).end() #define SZ(x) ((lint)(x).size()) #define FOR(i, begin, end) for(lint i=(begin),i##_end_=(end);i<i##_end_;i++) #define IFOR(i, begin, end) for(lint i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) #define endk '\n' template<class T>bool chmax(T& a, const T& b) { if (a < b) { a = b; return 1; } return 0; } template<class T>bool chmin(T& a, const T& b) { if (b < a) { a = b; return 1; } return 0; } lint gcd(lint a, lint b) { if (b == 0) return a; else return gcd(b, a % b); } lint ceil(lint a, lint b) { return (a + b - 1) / b; } lint digit(lint a) { return (lint)log10(a); } const lint MOD = 1e9 + 7, INF = 1e15; lint dx[8] = { 1, 0, -1, 0, 1, -1, 1, -1 }, dy[8] = { 0, 1, 0, -1, -1, -1, 1, 1 }; void YN(bool flag) { cout << (flag ? "YES" : "NO") << endk; } typedef pair<lint, string> Pa; typedef pair<lint, plint> tlint; template<typename flow_t, typename cost_t> struct Flow { struct edge { lint to; flow_t cap; cost_t cost; lint rev; }; vector<vector<edge> > Graph; vector<cost_t> potential, min_cost; vector<lint> prevv, preve; vector<lint> level; vector<lint> iter; Flow(lint V) :Graph(V) {} void add_edge(lint from, lint to, flow_t cap, cost_t cost = 0) { Graph[from].push_back({ to, cap, cost, SZ(Graph[to]) }); Graph[to].push_back({ from, 0, -cost, SZ(Graph[from]) - 1 }); } void bfs(lint s) { lint V = SZ(Graph); level.assign(V, -1); queue<lint> que; que.push(s); level[s] = 0; while (!que.empty()) { lint v = que.front(); que.pop(); REP(i, SZ(Graph[v])) { edge& e = Graph[v][i]; if (e.cap > 0 && level[e.to] < 0) { level[e.to] = level[v] + 1; que.push(e.to); } } } } flow_t dfs(lint v, lint t, flow_t f) { if (v == t) return f; for (lint& i = iter[v]; i < SZ(Graph[v]); i++) { edge& e = Graph[v][i]; if (e.cap > 0 && level[v] < level[e.to]) { flow_t d = dfs(e.to, t, min(f, e.cap)); if (d > 0) { e.cap -= d; Graph[e.to][e.rev].cap += d; return d; } } } return 0; } flow_t max_flow(lint s, lint t) { flow_t flow = 0; lint V = SZ(Graph); for (;;) { bfs(s); if (level[t] < 0) return flow; iter.assign(V, 0); flow_t f; while ((f = dfs(s, t, INF)) > 0) { flow += f; } } } lint min_cost_flow(lint s, lint t, lint f) { cost_t res = 0; lint V = SZ(Graph); potential.assign(V, 0); prevv.assign(V, -1); preve.assign(V, -1); while (f > 0) { priority_queue<pair<cost_t, lint>, vector<pair<cost_t, lint> >, greater<pair<cost_t, lint> > > que; min_cost.assign(V, INF); min_cost[s] = 0; que.push({ 0, s }); while (!que.empty()) { pair<cost_t, lint> p = que.top(); que.pop(); lint v = p.second; if (min_cost[v] < p.first) continue; REP(i, SZ(Graph[v])) { edge& e = Graph[v][i]; cost_t nextCost = min_cost[v] + e.cost + potential[v] - potential[e.to]; if (e.cap > 0 && min_cost[e.to] > nextCost) { min_cost[e.to] = nextCost; prevv[e.to] = v; preve[e.to] = i; que.push({ min_cost[e.to], e.to }); } } } if (min_cost[t] == INF) { return -1; } REP(v, V) potential[v] += min_cost[v]; flow_t addflow = f; for (lint v = t; v != s; v = prevv[v]) { addflow = min(addflow, Graph[prevv[v]][preve[v]].cap); } f -= addflow; res += addflow * potential[t]; for (lint v = t; v != s; v = prevv[v]) { edge& e = Graph[prevv[v]][preve[v]]; e.cap -= addflow; Graph[v][e.rev].cap += addflow; } } return res; } }; lint N; map<char, lint> mp; int main() { mp['y'] = 0; mp['u'] = 1; mp['k'] = 2; mp['i'] = 3; lint N; cin >> N; string str; cin >> str; vector<lint> arr(N); REP(i, N) { cin >> arr[i]; } lint s = 2 * N, t = s + 1; Flow<lint, lint> g(2 * N + 2); REP(i, N) { if (str[i] == 'y') { g.add_edge(s, i, 1, 0); } if (str[i] == 'i') { g.add_edge(N + i, t, 1, 0); } FOR(j, i + 1, N) { if (mp[str[i]] + 1 == mp[str[j]]) { g.add_edge(N + i, j, 1, 0); } } } REP(i, N) { g.add_edge(i, i + N, 1, - arr[i]); } g.add_edge(s, t, N, 0); cout << - g.min_cost_flow(s, t, N) << endk; }