제출 #556147

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
556147	2022-05-02 13:39:39	jamezzz	통행료 (IOI18_highway)	C++17	100 / 100	201 ms	13024 KiB

highway

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#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> ii;
#define pf printf
#define pb push_back
#define all(x) x.begin(),x.end()
#define maxn 90005
int n,m,a,b,dist[maxn][2],pedge[maxn][2],s[maxn];
ll d;
vi ord[2];
vector<ii> AL[maxn];
void find_pair(int _n,vi u,vi v,int _a,int _b){
  n=_n;a=_a;b=_b;
  m=u.size();
  
  for(int i=0;i<m;++i){
    AL[u[i]].pb({v[i],i});
    AL[v[i]].pb({u[i],i});
  }
  
  vi w(m);
  d=ask(w)/a;
  
 
 
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컴파일 시 표준 에러 (stderr) 메시지

highway.cpp: In function 'void find_pair(int, vi, vi, int, int)':
highway.cpp:80:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   80 |    for(int i=mid+1;i<pos.size();++i)w[pos[i]]=1;
      |                    ~^~~~~~~~~~~
highway.cpp:83:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |    for(int i=mid+1;i<pos.size();++i)w[pos[i]]=0;
      |                    ~^~~~~~~~~~~
highway.cpp:65:7: warning: unused variable 'idk' [-Wunused-variable]
   65 |   int idk=pedge[4410][0];//test
      |       ^~~
highway.cpp:66:7: warning: unused variable 'cnt' [-Wunused-variable]
   66 |   int cnt=0;
      |       ^~~
highway.cpp:77:29: warning: unused variable 'mid' [-Wunused-variable]
   77 |   int lo=-1,hi=pos.size()-1,mid,res=-1;
      |                             ^~~
highway.cpp:41:11: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
   41 |  vi r={u[f],v[f]};
      |           ^

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 6 / 6
• Subtask 4: 33 / 33
• Subtask 5: 18 / 18
• Subtask 6: 31 / 31