Submission #895710

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
895710	2023-12-30 15:15:28	imarn	Synchronization (JOI13_synchronization)	C++14	100 / 100	207 ms	24148 KiB

synchronization

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#include<bits/stdc++.h>
#define ld long double
#define pii pair<long long,int>
#define pll pair<ll,ll>
#define all(x) x.begin(),x.end()
#define pb push_back
#define f first
#define s second
#define vi vector<ll>
#define vvi vector<vi>
#define vpii vector<pii>
#define ll long long
using namespace std;
const int N=1e5+5;
vector<int>g[N];
vpii edge(N);
int fw[N]{0},pr[N][18]{0},tin[N],tout[N],t=0,d[N]{0},dd[N]{0};
bool vis[N]{0};
void add(int i,int amt){
    for(;i<N;i+=i&-i)fw[i]+=amt;
}
int qr(int i,int res=0){
    for(;i;i-=i&-i)res+=fw[i];
    return res;
}
int get(int u){
    int x=qr(tin[u]);
    for(int i=17;i>=0;i--)if(qr(tin[pr[u][i]])==x)u=pr[u][i];
    return u;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40