제출 #537084

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
537084	2022-03-14 12:35:03	ToroTN	Teleporters (IOI08_teleporters)	C++14	45 / 100	559 ms	46036 KiB

teleporters

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#include<bits/stdc++.h>
using namespace std;
int n,m,a[2000005],x[1000005],y[1000005],go[2000005],hsh[2000005],d[2000005],node,u,cnt,ans;
vector<int> v;
queue<int> q;
priority_queue<int> pq;
int main()
{
    scanf("%d%d",&n,&m);
    for(int i=1;i<=n;i++)
    {
        scanf("%d%d",&x[i],&y[i]);
        v.push_back(x[i]);
        v.push_back(y[i]);
    }
    sort(v.begin(),v.end());
    for(int i=0;i<v.size();i++)
    {
        hsh[v[i]]=i+1;
    }
    for(int i=1;i<=n;i++)
    {
        go[hsh[x[i]]]=hsh[y[i]];
        go[hsh[y[i]]]=hsh[x[i]];
    }
    memset(d,-1,sizeof d);
    d[2*n+1]=0;
    for(int i=1;i<=2*n;i++)
    {
        if(d[i]==-1)
 
 
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컴파일 시 표준 에러 (stderr) 메시지

teleporters.cpp: In function 'int main()':
teleporters.cpp:17:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0;i<v.size();i++)
      |                 ~^~~~~~~~~
teleporters.cpp:9:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |     scanf("%d%d",&n,&m);
      |     ~~~~~^~~~~~~~~~~~~~
teleporters.cpp:12:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |         scanf("%d%d",&x[i],&y[i]);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~

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