제출 #151247

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
151247	2019-09-02 10:15:08	TadijaSebez	공장들 (JOI14_factories)	C++11	100 / 100	4295 ms	442172 KiB

factories

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#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
const ll inf=7e18;
const int N=1000050;
const int L=21;
int n;
vector<pair<int,int>> E[N],B[N];
void AddEdge(int u, int v, int w){ B[u].pb({v,w});B[v].pb({u,w});}
void Build(int u, int p)
{
  vector<pair<int,int>> es;
  for(auto e:E[u]) if(e.first!=p) es.pb(e);
  int last=u;
  for(int i=0;i<es.size();i++)
  {
    AddEdge(last,es[i].first,es[i].second);
    if(i+2<es.size())
    {
      n++;
      AddEdge(last,n,0);
      last=n;
    }
  }
  for(auto e:es) Build(e.first,u);
}
int go[N][L];
ll dep[N][L];
 
 
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컴파일 시 표준 에러 (stderr) 메시지

factories.cpp: In function 'void Build(int, int)':
factories.cpp:17:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<es.size();i++)
              ~^~~~~~~~~~
factories.cpp:20:9: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   if(i+2<es.size())
      ~~~^~~~~~~~~~
factories.cpp: In function 'void Decompose(int, int)':
factories.cpp:48:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i=0;i<B[u].size();i++) if(!was[B[u][i].first])
              ~^~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67