Submission #529603

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
529603	2022-02-23 08:55:31	pokmui9909	Stations (IOI20_stations)	C++17	52.32 / 100	1019 ms	840 KiB

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#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
ll in[1005], out[1005];
vector<ll> T[1005];
ll num = -1;
void dfs(ll u, ll p){
  in[u] = ++num;
  for(auto v : T[u]){
    if(v == p) continue;
    dfs(v, u);
  }
  out[u] = num;
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
    num = -1;
    for(int i = 0; i < n; i++) T[i].clear();
  for(int i = 0; i < n - 1; i++){
    T[u[i]].push_back(v[i]);
    T[v[i]].push_back(u[i]);
  }
  dfs(0, -1);
  vector<int> L(n);
  for(int i = 0; i < n; i++){
    L[i] = in[i] * 1000 + out[i];
  }
  return L;
 
 
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Compilation message (stderr)

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:55:1: warning: control reaches end of non-void function [-Wreturn-type]
   55 | }
      | ^

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 16 / 16
• Subtask 4: 10 / 10
• Subtask 5: 26.3205 / 61