Submission #591161

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
591161	2022-07-06 23:45:25	GusterGoose27	Inside information (BOI21_servers)	C++11	55 / 100	257 ms	78024 KiB

servers

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#include <bits/stdc++.h>
using namespace std;
typedef pair<int, int> pii;
const int MAXN = 120000;
vector<pii> edges[MAXN];
pair<pii, int> queries[MAXN]; // start, end, time
int lca[MAXN][20];
pii lca_range[MAXN][20];
pii lca_range_rev[MAXN][20];
int rev_lca[MAXN][20];
bool flag = 0;
int depth[MAXN];
int n, k;
void dfs(int cur = 0, int p = -1) {
  for (pii e: edges[cur]) {
    int next = e.first;
    if (next == p) continue;
    depth[next] = depth[cur]+1;
    lca[next][0] = cur;
    lca_range[next][0] = pii(e.second, e.second);
    lca_range_rev[next][0] = pii(e.second, e.second);
    if (flag) {
      rev_lca[cur][0] = next;
    }
    dfs(next, cur);
  }
 
 
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• Subtask 1: 2.5 / 2.5
• Subtask 2: 0 / 2.5
• Subtask 3: 2.5 / 2.5
• Subtask 4: 0 / 2.5
• Subtask 5: 5 / 5
• Subtask 6: 5 / 5
• Subtask 7: 10 / 10
• Subtask 8: 0 / 10
• Subtask 9: 12.5 / 12.5
• Subtask 10: 0 / 12.5
• Subtask 11: 17.5 / 17.5
• Subtask 12: 0 / 17.5