제출 #140330

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
140330	2019-08-02 14:47:06	XmtosX	통행료 (IOI18_highway)	C++17	51 / 100	1433 ms	262148 KiB

highway

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#include "highway.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN=90005;
int n,m,par[MAXN];
vector <int> v[MAXN];
vector <pair<int,int> > vv;
map <pair<int,int>, int> r;
long long ANS;
bool block[MAXN];
void dfs (int x,int p,int l)
{
    vv.push_back({l,x});
    par[x]=p;
    for (int i=0;i<v[x].size();i++)
    {
        if (v[x][i]!=p&&!block[v[x][i]])
        {
            dfs(v[x][i],x,l+1);
        }
    }
}
void find_pair (int N, vector<int> U, vector<int> V, int A, int B)
{
    n=N;
    m=U.size();
    vector<int> w;
    w.resize(m);
    ANS=ask(w);
    int low=0,high=m-1,ans,mid;
 
 
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컴파일 시 표준 에러 (stderr) 메시지

highway.cpp: In function 'void dfs(int, int, int)':
highway.cpp:15:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i=0;i<v[x].size();i++)
                  ~^~~~~~~~~~~~
highway.cpp: In function 'void find_pair(int, std::vector<int>, std::vector<int>, int, int)':
highway.cpp:74:39: warning: right operand of comma operator has no effect [-Wunused-value]
         low=0,high=vv.size(),mid,ans=-1;
                                       ^
highway.cpp:77:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i=0;i<w.size();i++)
                          ~^~~~~~~~~
highway.cpp:80:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i=mid;i<vv.size();i++)
                            ~^~~~~~~~~~
highway.cpp:61:16: warning: 'ans' may be used uninitialized in this function [-Wmaybe-uninitialized]
     block[U[ans]]=1;
                ^

• Subtask 1: 5 / 5
• Subtask 2: 7 / 7
• Subtask 3: 6 / 6
• Subtask 4: 33 / 33
• Subtask 5: 0 / 18
• Subtask 6: 0 / 31