Submission #911212

#	Time	Username	Problem	Language	Result	Execution time	Memory
911212		cadmiumsky	Fish 2 (JOI22_fish2)	C++17	0 / 100	41 ms	1116 KiB

fish2

#include <bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
using namespace std;

using ll = long long;
using ld = long double;

//#define int ll
#define sz(x) ((int)(x).size())

using pii = pair<int,int>;
using tii = tuple<int,int,int>;

int check(vector<int>& v, int p, int l, int r) {
  priority_queue<pii, vector<pii>, greater<pii>> heap;
  heap.emplace(v[p - 1], p - 1);
  heap.emplace(v[p + 1], p + 1);
  
  int S = v[p];
  
  while(!heap.empty()) {
    auto [C, poz] = heap.top();
    heap.pop();
    if(poz > r || poz < l) continue;
    
    if(S < C) return 0;
    //cerr << S << ' ' << C << '\t' << p << ' ' << poz << '\n';
    S += C;
    if(p < poz) heap.emplace(v[poz + 1], poz + 1);
    if(p > poz) heap.emplace(v[poz - 1], poz - 1);
  }
  
  return 1;
  
}

signed main() {
  cin.tie(0) -> sync_with_stdio(0);
  int n, q;
  cin >> n;
  
  vector<int> v(n + 1);
  for(int i = 1; i <= n; i++) cin >> v[i];
  
  cin >> q;
  
  v.emplace_back(0);
  
  for(int TC = 0, t, x, y; TC < q; TC++) {
    cin >> t >> x >> y;
    if(t == 1)
      v[x] = y;
    else {
      int cnt = 0;
      for(int i = x; i <= y; i++)
        cnt += check(v, i, x, y);
      cout << cnt << '\n';
    }
  }
  
}

/**
  Anul asta nu se da centroid
  -- Rugaciunile mele
*/

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 12
• Subtask 4: 0 / 23
• Subtask 5: 0 / 35
• Subtask 6: 0 / 17