제출 #585395

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
585395	2022-06-28 19:42:18	MrDeboo	경주 (Race) (IOI11_race)	C++17	100 / 100	446 ms	130800 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
using namespace std;
vector<pair<int,int>>vct[500000];
pair<pair<long long,long long>,map<long long,long long>>pr[500000];
long long ans=LONG_LONG_MAX,k;
vector<int>viss(500000);
int cnt=0;
void dfs(int in){
    cnt++;
    assert(!viss[in]);
    viss[in]=1;
    if(vct[in].empty()){
        pr[in].second[0]=0;
        return;
    }
    for(auto &i:vct[in])dfs(i.first);
    int f=0,g=0;
    for(int i=0;i<vct[in].size();i++){
        if(pr[vct[in][i].first].second.size()>f){
            f=pr[vct[in][i].first].second.size();
            g=i;
        }
    }
    swap(pr[in],pr[vct[in][g].first]);
    pr[in].first.first+=vct[in][g].second;
    pr[in].first.second++;
    if(!pr[in].second.count(-pr[in].first.first))pr[in].second[-pr[in].first.first]=-pr[in].first.second;
    else pr[in].second[-pr[in].first.first]=min(pr[in].second[-pr[in].first.first],-pr[in].first.second);
    if(pr[in].second.count(k-pr[in].first.first)){
 
 
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컴파일 시 표준 에러 (stderr) 메시지

race.cpp: In function 'void dfs(int)':
race.cpp:19:18: 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<vct[in].size();i++){
      |                 ~^~~~~~~~~~~~~~~
race.cpp:20:46: warning: comparison of integer expressions of different signedness: 'std::map<long long int, long long int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   20 |         if(pr[vct[in][i].first].second.size()>f){
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~
race.cpp:33:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |     for(int i=0;i<vct[in].size();i++){
      |                 ~^~~~~~~~~~~~~~~

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