제출 #994666

#제출 시각아이디문제언어결과실행 시간메모리
994666pavementJobs (BOI24_jobs)C++17
0 / 100
2097 ms33228 KiB
#include <bits/stdc++.h> using namespace std; #define mp make_pair #define pb push_back #define int long long using ll = long long; int N, x[300005], p[300005]; ll s, os, ans; vector<int> adj[300005]; set<pair<int, ll> > mem; void bf(int bm, ll sf) { if (sf < 0) { return; } if (mem.find(mp(bm, sf)) != mem.end()) { return; } ans = max(ans, sf); vector<int> cand; for (auto u : adj[0]) { if (!(bm & (1 << (u - 1)))) { cand.pb(u); } } for (int i = 0; i < N; i++) { if (bm & (1 << i)) { for (auto u : adj[i + 1]) { if (!(bm & (1 << (u - 1)))) { cand.pb(u); } } } } for (auto u : cand) { bf(bm | (1 << (u - 1)), sf + x[u]); } } main() { ios::sync_with_stdio(0); cin.tie(0); cin >> N >> s; os = s; for (int i = 1; i <= N; i++) { cin >> x[i] >> p[i]; adj[p[i]].pb(i); } bf(0, s); cout << ans - s << '\n'; }

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp:43:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   43 | main() {
      | ^~~~
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