Submission #385386

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
385386	2021-04-04 06:28:45	ritul_kr_singh	Cake (CEOI14_cake)	C++17	75 / 100	667 ms	12252 KiB

cake

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#include <bits/stdc++.h>
using namespace std;
#define int long long
#define nl << '\n'
#define sp << ' ' <<
struct SegmentTree{
  vector<int> a; int sz = 1, ID = -1e18;
  SegmentTree(vector<int> &v){
    while(sz < (int)v.size()) sz += sz;
    a.resize(2*sz, ID);
    build(v, 0, 0, sz);
  }
  void build(vector<int> &v, int x, int lx, int rx){
    if(rx-lx==1){
      if(lx<(int)v.size()) a[x] = v[lx];
      return;
    }
    int mx = (lx+rx)/2;
    build(v, 2*x+1, lx, mx);
    build(v, 2*x+2, mx, rx);
    a[x] = max(a[2*x+1], a[2*x+2]);
  }
  void update(int i, int val, int x, int lx, int rx){
    if(rx-lx==1) return void(a[x] = val);
    int mx = (lx+rx)/2;
    if(i<mx) update(i, val, 2*x+1, lx, mx);
    else update(i, val, 2*x+2, mx, rx);
    a[x] = max(a[2*x+1], a[2*x+2]);
  }
 
 
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• Subtask 1: 0 / 15
• Subtask 2: 15 / 15
• Subtask 3: 10 / 20
• Subtask 4: 50 / 50