제출 #519182

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
519182	2022-01-25 20:24:47	MOUF_MAHMALAT	Torrent (COI16_torrent)	C++14	100 / 100	646 ms	27712 KiB

torrent

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#include<bits/stdc++.h>
#define all(s) s.begin(),s.end()
#define F first
#define S second
using namespace std;
typedef int ll;
ll n,a,b,op,x,y,dp[300009],pp[300009],ans;
vector<vector<ll> >v;
vector<ll>bin;
inline void dfs(ll d,ll p)
{
    pp[d]=p;
    for(auto&z:v[d])
        if(z!=p)
            dfs(z,d);
}
inline void best(ll d,ll p)
{
    dp[d]=0;
    vector<ll>o;
    for(auto&z:v[d])
    {
        if(z==p||(d==x&&z==y)||(d==y&&z==x))
            continue;
        best(z,d);
        o.push_back(dp[z]);
    }
    sort(all(o),greater<ll>());
    for(ll i=0; i<o.size(); i++)
        dp[d]=max(dp[d],o[i]+i+1);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

torrent.cpp: In function 'void best(ll, ll)':
torrent.cpp:29:18: warning: comparison of integer expressions of different signedness: 'll' {aka 'int'} and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   29 |     for(ll i=0; i<o.size(); i++)
      |                 ~^~~~~~~~~

• Subtask 1: 31 / 31
• Subtask 2: 69 / 69