oj.uz

Submission #38310

# Submission time Handle Problem Language Result Execution time Memory
38310 2018-01-03T15:44:16 Z romanasa Mountain Trek Route (IZhO12_route) C++14
100 / 100
 739 ms 26300 KB 
#include <bits/stdc++.h>
#define err(...) fprintf(stderr, __VA_ARGS__), fflush(stderr)

using namespace std;

typedef long long ll;

priority_queue<pair<int, int> > S;

#define TASK "g"

int main() {	
	int n, k;
	cin >> n >> k;
	
	vector<int> a(n);
	for (int i = 0; i < n; i++) cin >> a[i];
	
	rotate(a.begin(), max_element(a.begin(), a.end()), a.end());
	a.push_back(a[0]);
	
	vector<int> s;
	for (int i = 0; i <= n; i++) {
  		while (s.size() && a[s.back()] < a[i]) {
  			int val = a[s.back()];
  			s.pop_back();
  			S.push({ -(i - s.back() - 1), min(a[s.back()], a[i]) - val });
  		}
		s.push_back(i);
	}
	
	int ans = 0;
	while (S.size()) {
		auto c = S.top();
		S.pop();
		
		c.first *= -1;
		
		int t = min(k / c.first, c.second);
		ans += t * 2;
		k -= t * c.first;
	}
	cout << ans << "\n";

	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2016 KB Output is correct
2 Correct 0 ms 2016 KB Output is correct
3 Correct 0 ms 2016 KB Output is correct
4 Correct 0 ms 2016 KB Output is correct
5 Correct 0 ms 2016 KB Output is correct
6 Correct 0 ms 2016 KB Output is correct
7 Correct 0 ms 2016 KB Output is correct
8 Correct 0 ms 2016 KB Output is correct
9 Correct 0 ms 2016 KB Output is correct
10 Correct 69 ms 4932 KB Output is correct
11 Correct 69 ms 4932 KB Output is correct
12 Correct 59 ms 5188 KB Output is correct
13 Correct 703 ms 26300 KB Output is correct
14 Correct 739 ms 26300 KB Output is correct
15 Correct 533 ms 26300 KB Output is correct
16 Correct 589 ms 26300 KB Output is correct
17 Correct 596 ms 26300 KB Output is correct
18 Correct 623 ms 26300 KB Output is correct
19 Correct 673 ms 26300 KB Output is correct
20 Correct 463 ms 26300 KB Output is correct