Submission #363956

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
363956	2021-02-07 15:42:10	ngpin04	Railway (BOI17_railway)	C++14	100 / 100	162 ms	24716 KiB

railway

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#include <bits/stdc++.h>
#define fi first
#define se second
#define mp make_pair
using namespace std;
const int N = 1e5 + 5;
vector <int> ans;
vector <pair <int, int>> adj[N];
int anc[20][N];
int id[N];
int bit[N];
int tin[N];
int tout[N];
int n,k,q,cntdfs;
void update(int pos, int val)
{
    for (; pos <= n; pos += pos & -pos)
        bit[pos] += val;
}
int getsum(int l, int r)
{
    int res = 0;
    for (; r > 0; r -= r & -r)
        res += bit[r];
    for (l--; l > 0; l -= l & -l)
 
 
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• Subtask 1: 8 / 8
• Subtask 2: 15 / 15
• Subtask 3: 7 / 7
• Subtask 4: 29 / 29
• Subtask 5: 16 / 16
• Subtask 6: 25 / 25