제출 #1173086

#제출 시각아이디문제언어결과실행 시간메모리
1173086lopkusToll (BOI17_toll)C++20
10 / 100
32 ms6216 KiB
#include <bits/stdc++.h>+

signed main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(nullptr);
  int k, n, m, Q;
  std::cin >> k >> n >> m >> Q;
  std::vector<std::pair<int,int64_t>> adj[n];
  for(int i = 1; i <= m; i++) {
    int64_t u, v, t;
    std::cin >> u >> v >> t;
    adj[u].push_back({v, t});
  }
  std::vector<int64_t> dist(n + 1, 1e18);
  std::priority_queue<std::pair<int,int>> pq;
  std::vector<int> was(n);
  pq.push({0, 0});
  dist[0] = 0;
  while(!pq.empty()) {
    int v = (pq.top()).second;
    int cost = - (pq.top()).first;
    pq.pop();
    if(was[v]) {
      continue;
    }
    was[v] = 1;
    for(auto [u, t] : adj[v]) {
      if(dist[u] > dist[v] + t) {
        dist[u] = dist[v] + t;
        pq.push({-dist[u], u});
      }
    }
  }
  while(Q--) {
    int u, v;
    std::cin >> u >> v;
    std::cout << (dist[v] == 1e18 ? - 1 : dist[v]) << "\n";
  }
}

컴파일 시 표준 에러 (stderr) 메시지

toll.cpp:1:25: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h>+
      |                         ^
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