Submission #388367

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
388367	2021-04-11 06:26:05	pure_mem	Synchronization (JOI13_synchronization)	C++14	100 / 100	304 ms	20220 KiB

synchronization

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#include <bits/stdc++.h>
 
#define X first
#define Y second
#define MP make_pair
#define ll long long
 
using namespace std;
 
const int MAXN = 100012, INF = 1e9 + 7;
const int MOD = 998244353; 
int n, m, q, sz[MAXN], parent[MAXN];
vector<int> graph[MAXN];
int hldPtr, hldCnt, hld[MAXN], hldCmp[MAXN], hldSt[MAXN], hldId[MAXN];
pair<int, int> road[MAXN];
bool isRoad[MAXN];
int t[MAXN * 4];
void upd(int v, int tl, int tr, int pos){
  if(tl > pos || pos > tr)
    return;
  if(tl == tr){
    t[v] ^= 1;
    return;
  }
  int tm = (tl + tr) / 2;
  upd(v * 2, tl, tm, pos);
  upd(v * 2 + 1, tm + 1, tr, pos);
  t[v] = t[v * 2] + t[v * 2 + 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