Submission #647642

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
647642	2022-10-03 12:55:23	ymm	Sterilizing Spray (JOI15_sterilizing)	C++17	100 / 100	249 ms	5332 KiB

sterilizing

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#include <bits/stdc++.h>
#define Loop(x,l,r) for (ll x = (l); x < (ll)(r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (ll)(l); --x)
typedef long long ll;
typedef std::pair<int, int> pii;
typedef std::pair<ll , ll > pll;
using namespace std;
const int N = 100'010;
ll seg[N<<2];
int n, q, k;
void spray(int l, int r, int k, int i, int b, int e)
{
  if (r <= b || e <= l)
    return;
  if (k == 1 || seg[i] == 0)
    return;
  if (e-b == 1) {
    seg[i] /= k;
    return;
  }
  spray(l,r,k,2*i+1,b,(b+e)/2);
  spray(l,r,k,2*i+2,(b+e)/2,e);
  seg[i] = seg[2*i+1] + seg[2*i+2];
}
void set_to(int p, ll x, int i, int b, int e)
{
  if (e-b == 1) {
 
 
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• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 75 / 75