제출 #262114

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
262114	2020-08-12 11:13:08	Nightlight	Crocodile's Underground City (IOI11_crocodile)	C++14	100 / 100	792 ms	81892 KiB

crocodile

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#include "crocodile.h"
#include <bits/stdc++.h>
#define pii pair<long long, int>
using namespace std;
int N, M;
long long ans;
vector<pii> adj[100005];
long long dist[100005], dist2[100005];
bool can[100005];
priority_queue<pii, vector<pii>, greater<pii>> pq;
void BFS() {
  for(int i = 0; i < N; i++) {
    if(can[i]) pq.emplace(0, i), can[i] = 0;
    else dist[i] = 1000000000000, dist2[i] = 1000000000000;
  }
  int u, v;
  long long len, w;
  while(!pq.empty()) {
    u = pq.top().second;
    len = pq.top().first;
    pq.pop();
    if(can[u]) continue;
    can[u] = 1;
    for(pii now : adj[u]) {
      v = now.second;
      w = now.first;
      if(dist2[u] + w < dist[v]) {
        dist2[v] = dist[v];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

crocodile.cpp: In function 'void BFS()':
crocodile.cpp:19:13: warning: variable 'len' set but not used [-Wunused-but-set-variable]
   long long len, w;
             ^~~

• Subtask 1: 46 / 46
• Subtask 2: 43 / 43
• Subtask 3: 11 / 11