Submission #586370

#	Time	Username	Problem	Language	Result	Execution time	Memory
586370		MilosMilutinovic	Paprike (COI18_paprike)	C++14	13 / 100	38 ms	8128 KiB

paprike

/**
 *    author:  wxhtzdy
 *    created: 30.06.2022 09:53:47
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n, k;
  cin >> n >> k;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  vector<vector<int>> g(n);
  for (int i = 0; i < n - 1; i++) {
    int u, v;
    cin >> u >> v;
    --u; --v;
    g[u].push_back(v);
    g[v].push_back(u);
  }
  int ans = 0;
  for (int i = 0; i < n; i++) {
    int ptr = i;
    long long s = 0;
    while (ptr < n && s + a[ptr] <= k)  {
      s += a[ptr];
      ptr += 1;
    }
    ans += (ptr < n);
    i = ptr - 1;
  }
  cout << ans << '\n';                             
  return 0;
}

• Subtask 1: 0 / 11
• Subtask 2: 13 / 13
• Subtask 3: 0 / 27
• Subtask 4: 0 / 49