제출 #402166

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
402166	2021-05-11 11:45:58	A_D	철인 이종 경기 (APIO18_duathlon)	C++14	23 / 100	141 ms	12360 KiB

count_triplets

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#include <bits/stdc++.h>
#define int long long
using namespace std;
const int N=1e5+100;
vector<int> g[N];
bool vis[N];
int dep[N];
int sum[N];
int a[N];
int n,ans,nn;
void dfs2(int u,int p)
{
    vis[u]=1;
    for(auto x:g[u]){
        if(x==p)continue;
        dep[x]=dep[u]+1;
        dfs2(x,u);
        sum[u]+=sum[x];
        a[u]+=a[x];
    }
    sum[u]+=dep[u];
}
void dfs(int u,int p,int ann)
{
    vis[u]=1;
    ans+=ann-(nn);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

count_triplets.cpp: In function 'void solve()':
count_triplets.cpp:40:11: warning: unused variable 'ann' [-Wunused-variable]
   40 |     int m,ann=0;
      |           ^~~
count_triplets.cpp: At global scope:
count_triplets.cpp:66:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   66 | main()
      | ^~~~

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• Subtask 2: 0 / 11
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