제출 #260964

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
260964	2020-08-11 08:46:12	emanIaicepsa	철인 이종 경기 (APIO18_duathlon)	C++14	66 / 100	222 ms	25448 KiB

count_triplets

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#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<ll,ll>
#define vi vector<int>
#define pb emplace_back
#define fi first
#define se second
#define all(n) (n).begin(),(n).end()
#define mem(n,m) memset(n,m,sizeof(n))
#define IOS ios::sync_with_stdio(0), cin.tie(0)
#define dbg(...) cerr<<#__VA_ARGS__<<" = ";_do(__VA_ARGS__);
template<typename A> void _do(A x){cerr<<x<<'\n';}
template<typename A,typename ...B> void _do(A x,B ...y){cerr<<x<<", ";_do(y...);}
const int mxn = 100005;
ll C(ll x){
    return (x)*(x-1)*(x-2)/6*2;
}
ll P(ll x){
    return C(x)*3;
}
ll n,m;
vi E[mxn], E2[mxn];
ll siz[mxn], ans=0, l[mxn], d[mxn], bcc[mxn], bcc_siz[mxn], dfn, bccid, vis[mxn], rt[mxn], siznd[mxn];
stack<int> s;
void dfs(int x,int p){
 
 
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