Submission #859900

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
859900	2023-10-11 04:45:57	TS_2392	Synchronization (JOI13_synchronization)	C++14	100 / 100	213 ms	25288 KiB

synchronization

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#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define dbg(x) cout << #x << " = " << (x) << ' '
using namespace std;
const int N = 1e5 + 3;
int n, m, q, tin[N], tout[N], timer;
int jmp[N][17], bit[2 * N], f[N], last_del[N];
bool stat[N];
vector<int> adj[N];
pair<int, int> edge[N];
void dfs(int u, int par){
    tin[u] = ++timer;
    for(int &v : adj[u]) if(v != par){
        jmp[v][0] = u;
        for(int i = 1; i < 17; ++i) if(jmp[v][i - 1]){
            jmp[v][i] = jmp[jmp[v][i - 1]][i - 1];
        }
        dfs(v, u);
    }
    tout[u] = ++timer;
}
void update(int i, int v){
    for(; i <= timer; i += i & -i) bit[i] += v;
}
int query(int i){
    int res = 0;
    for(; i >= 1; i -= i & -i) res += bit[i];
    return res;
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40