Submission #1026033

# Submission time Handle Problem Language Result Execution time Memory
1026033 2024-07-17T13:08:33 Z fv3 Feast (NOI19_feast) C++14
12 / 100
34 ms 8800 KB
#include <bits/stdc++.h>

using namespace std;
typedef long long ll;

vector<ll> a, b;

ll res;
ll solve(ll pun)
{
	res = 0;
	ll last = -pun;
	ll seg_cnt = 0;

	for (auto n : b)
	{
		if (n > 0)
		{
			last += n;
			continue;
		}
		
		if (n < -pun)
		{
			if (last > 0)
			{
				res += last;
				seg_cnt++;
			}

			last = -pun;
		}
		else
		{
			last += n;
		}

		if (last < -pun)
			last = -pun;
	}

	if (last > 0)
	{
		res += last;
		seg_cnt++;
	}

	return seg_cnt;
}

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	ll N, K;
	cin >> N >> K;
	for (int i = 0; i < N; i++)
	{
		ll n; cin >> n;
		if (n != 0)
			a.push_back(n);
	}

	N = a.size();

	{
		int i = 0;
		while (i < N && a[i] < 0) i++;

		ll sum = a[i];

		for (i++; i < N; i++)
		{
			if ((a[i-1] ^ a[i]) < 0)
			{
				b.push_back(sum);
				sum = 0;
			}
			sum += a[i];
		}

		if (sum != 0)
			b.push_back(sum);

		if (b.back() <= 0) 
			b.pop_back();
	}

	ll l = 0ll; 
	ll r = 1000000000000000000ll;

	while (l < r)
	{
		ll c = (l + r) / 2ll;

		if (solve(c) > K)
			l = c + 1;
		else
			r = c;
	}

	solve(l);
	cout << res + K * l << '\n';

	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 22 ms 7360 KB Output is correct
2 Correct 22 ms 7380 KB Output is correct
3 Correct 22 ms 7376 KB Output is correct
4 Correct 22 ms 7112 KB Output is correct
5 Correct 22 ms 7376 KB Output is correct
6 Correct 25 ms 7380 KB Output is correct
7 Correct 21 ms 7244 KB Output is correct
8 Correct 21 ms 7116 KB Output is correct
9 Correct 21 ms 7376 KB Output is correct
10 Correct 27 ms 7376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 14 ms 5588 KB Output is correct
2 Correct 14 ms 5684 KB Output is correct
3 Correct 14 ms 5588 KB Output is correct
4 Correct 14 ms 5588 KB Output is correct
5 Correct 23 ms 7380 KB Output is correct
6 Correct 14 ms 5704 KB Output is correct
7 Correct 14 ms 5844 KB Output is correct
8 Correct 32 ms 7156 KB Output is correct
9 Correct 21 ms 7380 KB Output is correct
10 Correct 14 ms 5676 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 34 ms 8800 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Incorrect 0 ms 348 KB Output isn't correct
9 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Incorrect 0 ms 348 KB Output isn't correct
9 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 452 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Incorrect 0 ms 348 KB Output isn't correct
9 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 22 ms 7360 KB Output is correct
2 Correct 22 ms 7380 KB Output is correct
3 Correct 22 ms 7376 KB Output is correct
4 Correct 22 ms 7112 KB Output is correct
5 Correct 22 ms 7376 KB Output is correct
6 Correct 25 ms 7380 KB Output is correct
7 Correct 21 ms 7244 KB Output is correct
8 Correct 21 ms 7116 KB Output is correct
9 Correct 21 ms 7376 KB Output is correct
10 Correct 27 ms 7376 KB Output is correct
11 Correct 14 ms 5588 KB Output is correct
12 Correct 14 ms 5684 KB Output is correct
13 Correct 14 ms 5588 KB Output is correct
14 Correct 14 ms 5588 KB Output is correct
15 Correct 23 ms 7380 KB Output is correct
16 Correct 14 ms 5704 KB Output is correct
17 Correct 14 ms 5844 KB Output is correct
18 Correct 32 ms 7156 KB Output is correct
19 Correct 21 ms 7380 KB Output is correct
20 Correct 14 ms 5676 KB Output is correct
21 Incorrect 34 ms 8800 KB Output isn't correct
22 Halted 0 ms 0 KB -