Submission #402572

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
402572	2021-05-12 00:56:53	Talha_Taki	Index (COCI21_index)	C++17	110 / 110	1244 ms	137276 KiB

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#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5;
struct Vertex {
  Vertex *l, *r;
  int cnt;
  Vertex(int val) : l(nullptr), r(nullptr), cnt(val) {}
  Vertex(Vertex* l, Vertex* r) : l(l), r(r), cnt(0) {
    if (l) cnt += l->cnt;
    if (r) cnt += r->cnt;
  }
};
struct persistenSegmentTree {
  Vertex* build(int l, int r) {
    if (l == r) return new Vertex(0);
    int mid = (l+r)>>1;
    return new Vertex(build(l, mid), build(mid+1, r));
  }
  Vertex* update(Vertex* v, int l, int r, const int val) {
    if (l == r) return new Vertex(v->cnt+1);
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50