제출 #982366

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
982366	2024-05-14 07:28:26	Faisal_Saqib	철인 이종 경기 (APIO18_duathlon)	C++17	36 / 100	1085 ms	20052 KiB

count_triplets

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ll long long
const int N=1e5+10;
vector<int> ma[N];
// ll pre[N];
bool vis[N];
ll ans=0,sz[N],dp[N],dp_[N];
void dfs(int x,int p=-1)
{
  sz[x]=1;
  vis[x]=1;
  for(auto y:ma[x])
  {
    if(y!=p)
    {
      dfs(y,x);
      sz[x]+=sz[y];
      dp[x]-=(sz[y]*sz[y]);
    }
  }
  dp[x]+=((sz[x]-1)*(sz[x]-1));
}
void ChangeRoot(int x,int y)
{
  // 
  dp[x]+=(sz[y]*sz[y]);
  dp[x]-=((sz[x]-1)*(sz[x]-1));
  dp[y]-=((sz[y]-1)*(sz[y]-1));
 
 
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컴파일 시 표준 에러 (stderr) 메시지

count_triplets.cpp: In function 'void full(long long int)':
count_triplets.cpp:103:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  103 |  for(int i=1;(i+1)<path.size();i++)
      |              ~~~~~^~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 0 / 11
• Subtask 3: 8 / 8
• Subtask 4: 10 / 10
• Subtask 5: 13 / 13
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• Subtask 9: 0 / 10