제출 #877819

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
877819	2023-11-23 15:40:00	mahmoudbadawy	경주 (Race) (IOI11_race)	C++17	100 / 100	1328 ms	65200 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
#define F first
#define S second
using namespace std;
const int N=2e5+5;
vector< pair<int,int> > adj[N];
int n,k, ans=(1<<30);
int sz[N], del[N], nn;
void dfs0(int node, int pa=-1)
{
  sz[node]=1;
  nn++;
  //for(auto it:adj[node])
  for(int i=0;i<adj[node].size();i++)
  {
    auto it=adj[node][i];
    if(del[it.F])
    {
      swap(adj[node][i],adj[node].back());
      adj[node].pop_back();
      i--; continue;
    }
    if(del[it.F] || it.F==pa) continue;
    dfs0(it.F, node);
    sz[node]+=sz[it.F];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

race.cpp: In function 'void dfs0(int, int)':
race.cpp:19:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |  for(int i=0;i<adj[node].size();i++)
      |              ~^~~~~~~~~~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57