Submission #871583

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
871583	2023-11-11 06:56:00	Trisanu_Das	Star Trek (CEOI20_startrek)	C++17	45 / 100	45 ms	19664 KiB

startrek

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#include<bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef long double ld;
 
const int N=1e5+5;
const ll mod=1e9+7;
 
ll binpow(ll a,ll b){
    ll res=1;
    while(b>0){
        if(b&1)res*=a,res%=mod;
        a*=a,a%=mod;
        b>>=1;
    }
    return res;
}
 
int n;
ll d,ans,sum;
vector<int> adj[N];
ll dp[N][4];
bool dp1[N],dp2[N];
 
void dfs(int u,int p){
    for(auto v:adj[u]){
        if(v==p)continue;
        dfs(v,u);
 
 
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