Submission #88106

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
88106	2018-12-03 20:04:45	KCSC	Synchronization (JOI13_synchronization)	C++14	100 / 100	687 ms	68468 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
const int DIM = 100005;
int sgt[DIM * 8], fst[DIM], lst[DIM], oans[DIM], nans[DIM], lev[DIM];
vector<int> edg[DIM]; pair<int, int> lis[DIM]; bitset<DIM> oki;
void dfs(int x, int f) {
  static int cnt = 0;
  fst[x] = ++cnt; lev[x] = lev[f] + 1;
  for (int y : edg[x]) { 
    if (y != f) { 
      dfs(y, x); } }
  lst[x] = ++cnt; }
void update(int nd, int le, int ri, int ps, int vl) {
  if (le == ri) {
    sgt[nd] += vl; }
  else {
    int md = (le + ri) / 2;
    if (ps <= md) {
      update(nd << 1, le, md, ps, vl); }
    else {
      update(nd << 1 | 1, md + 1, ri, ps, vl); }
    if (lst[sgt[nd << 1]] > lst[sgt[nd << 1 | 1]]) {
      sgt[nd] = sgt[nd << 1]; }
    else {
      sgt[nd] = sgt[nd << 1 | 1]; } } }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40