Submission #260898

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
260898	2020-08-11 07:16:45	emanIaicepsa	Duathlon (APIO18_duathlon)	C++14	36 / 100	1085 ms	23572 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...);}
ll n,m;
vi E[100005];
ll siz[100005], ans=0;
bool vis[100005];
int pa[100005][18], dep[100005];
ll C(ll x){
    return (x)*(x-1)*(x-2)/6*2;
}
ll P(ll x){
    return C(x)*3;
}
 
 
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• Subtask 4: 10 / 10
• Subtask 5: 13 / 13
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• Subtask 9: 0 / 10