Submission #40640

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
40640	2018-02-06 12:42:08	IvanC	Sterilizing Spray (JOI15_sterilizing)	C++14	100 / 100	350 ms	40528 KiB

sterilizing

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int MAXN = 1e5 + 10;
ll seg[4*MAXN],qtd[4*MAXN],vetor[MAXN],N,Q,K;
void build(int pos,int left,int right){
  if(left == right){
    seg[pos] = vetor[left];
    qtd[pos] = (seg[pos] == 0);
    return;
  }
  int mid = (left+right)/2;
  build(2*pos,left,mid);
  build(2*pos+1,mid+1,right);
  seg[pos] = seg[2*pos] + seg[2*pos+1];
  qtd[pos] = qtd[2*pos] + qtd[2*pos+1];
}
void update_division(int pos,int left,int right,int i,int j){
  if(qtd[pos] == right - left + 1) return;
  if(left == right){
    seg[pos] = seg[pos]/K;
    qtd[pos] = (seg[pos] == 0);
    return;
  }
  int mid = (left+right)/2;
  if(j <= mid){
    update_division(2*pos,left,mid,i,j);
  }
  else if(i >= mid+1){
    update_division(2*pos+1,mid+1,right,i,j);
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 75 / 75