Submission #402756

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
402756	2021-05-12 10:39:12	two_sides	Synchronization (JOI13_synchronization)	C++17	100 / 100	308 ms	26256 KiB

synchronization

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100005;
const int LOG = 17;
int tin[MAXN], tout[MAXN];
int BIT[MAXN]; bool stat[MAXN];
pair <int, int> edge[MAXN];
vector <pair <int, int>> adj[MAXN];
int anc[MAXN][LOG];
int last[MAXN], val[MAXN];
void add(int i, int v) {
    for (i++; i < MAXN; i += i & -i)
        BIT[i] += v;
}
int sum(int i) {
    int sum = 0;
    for (i++; i > 0; i -= i & -i)
        sum += BIT[i];
    return sum;
}
int root(int u) {
    for (int i = LOG; --i >= 0; ) {
        if (anc[u][i] && sum(tin[u])
        == sum(tin[anc[u][i]]))
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40