Submission #198651

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
198651	2020-01-27 08:04:07	osaaateiasavtnl	Election Campaign (JOI15_election_campaign)	C++14	20 / 100	1088 ms	38180 KiB

election_campaign

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#include<bits/stdc++.h>
using namespace std;
#define int long long
#define ii pair <int, int>
#define app push_back
#define all(a) a.begin(), a.end()
#define bp __builtin_popcount
#define ll long long
#define mp make_pair
#define f first
#define s second
#define Time (double)clock()/CLOCKS_PER_SEC
const int N = 1e5 + 7, LG = 20;
vector <int> g[N];
vector <int> mem[N];
int to[N][LG];
int tin[N], tout[N], timer = 0;
void dfs(int u, int p) {
    to[u][0] = p;
    for (int i = 1; i < LG; ++i)
        to[u][i] = to[to[u][i - 1]][i - 1];
    tin[u] = timer++;        
    for (int v : g[u]) 
        if (v != p)
            dfs(v, u);
    tout[u] = timer++;
}   
bool anc(int u, int v) {
    return tin[u] <= tin[v] && tout[v] <= tout[u];
}   
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 30
• Subtask 5: 10 / 10
• Subtask 6: 0 / 40