제출 #885262

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
885262		epicci23	기지국 (IOI20_stations)	C++17	0 / 100	3025 ms	2097152 KiB

stations

#include "stations.h"
#include "bits/stdc++.h"
using namespace std;
#define pb push_back
typedef long long ll;

vector<int> v[1005];
int ti=0,ttin[1005],ttout[1005];

void dfs(int c,int p){
  ttin[c]=++ti;
  for(int x:v[c]){
    if(x==p) continue;
    dfs(x,c);
  }
  ttout[c]=ti;
}


vector<int> label(int n, int k,vector<int> u,vector<int> w){
  vector<int> res(n);
  for(int i=0;i<n-1;i++){
    v[u[i]].pb(w[i]);
    v[w[i]].pb(u[i]);
  }

  dfs(0,0);
  
  for(int i=0;i<n;i++) res[i]=1001*ttout[i]+ttin[i];
  return res;
}

int find_next_station(int s,int t,vector<int> c) {
  int sin,sout,tin,tout;
  sin=s%1001;
  sout=(s-sin)/1001;
  tin=t%1001;
  tout=(t-tin)/1001;

  for(int x:c){
    int xin,xout;
    xin=x%1001;
    xout=(x-xin)/1001;
    if(xin<=tin && tin<=xout) return x;
  }
}

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:34:11: warning: variable 'sout' set but not used [-Wunused-but-set-variable]
   34 |   int sin,sout,tin,tout;
      |           ^~~~
stations.cpp:34:20: warning: variable 'tout' set but not used [-Wunused-but-set-variable]
   34 |   int sin,sout,tin,tout;
      |                    ^~~~
stations.cpp:46:1: warning: control reaches end of non-void function [-Wreturn-type]
   46 | }
      | ^

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