Submission #721627

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
721627	2023-04-11 05:48:15	alvingogo	가로등 (APIO19_street_lamps)	C++14	100 / 100	2722 ms	201256 KiB

street_lamps

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#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#define AquA cin.tie(0);ios_base::sync_with_stdio(0);
#define fs first
#define sc second
#define p_q priority_queue
#define int long long
using namespace std;
vector<vector<int> > to;
struct BIT{
  int n;
  vector<int> bt;
  void init(int x){
    n=x;
    bt.resize(n+1);
  }
  void update(int x,int y){
    x++;
    for(;x<=n;x+=(x&-x)){
      bt[x]+=y;
    }
  }
  int query(int x){
    x++;
    int ans=0;
    for(;x>0;x-=(x&-x)){
      ans+=bt[x];
    }
    return ans;
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 20 / 20