Submission #636258

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
636258	2022-08-28 16:21:30	Mahdi	Sumtree (INOI20_sumtree)	C++17	100 / 100	718 ms	68120 KiB

Main

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#include<bits/stdc++.h>
#pragma GCC optimize ("Ofast")
using namespace std;
#define all(v) v.begin(), v.end()
#define F first
#define S second
typedef long long ll;
typedef pair<int, int> pii;
const int N=2e5+5, M=1e9+7;
int n, r, q, f[5*N/2], rf[5*N/2], ans, cmo, siz[N];
int ss[N], pr[N][18], st[N], fn[N];
vector<int>g[N];
ll tp[N];
inline int tav(int x, int y){
    ll res=1;
    while(y){
        if(y&1)
            res=res*x%M;
        y>>=1;
        x=1LL*x*x%M;
    }
    return res;
}
inline int rev(const int &x){
    return tav(x, M-2); 
}
void pre(){
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 30 / 30