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답안 #995257

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
995257 2024-06-08T17:45:02 Z Yarema Feast (NOI19_feast) C++17
100 / 100
 161 ms 4560 KB 
#include <bits/stdc++.h>

using namespace std;

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second

typedef long long LL;
typedef vector<int> VI;
typedef pair<int, int> PII;
typedef double db;
typedef pair<db, int> PLI;

const LL INF = 1e18;

PLI f(VI& a, LL lambda)
{
	int n = SZ(a);
	PLI dp0 = {0, 0};
	PLI dp1 = {-INF, 0};
	FOR (i, 0, n)
	{
		PLI ndp0 = max(dp0, dp1);
		PLI ndp1 = max(PLI(dp0.F + a[i] - lambda, dp0.S + 1), PLI(dp1.F + a[i], dp1.S));
		
		dp0 = ndp0;
		dp1 = ndp1;
		//cerr << i << ' ' << dp0.F << ' ' << dp0.S << ' ' << dp1.F << ' ' << dp1.S << '\n';
	}
	return max(dp0, dp1);
}

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	int n, k;
	cin >> n >> k;
	VI a(n);
	FOR (i, 0, n)
		cin >> a[i];
	
	
	LL l = -1, r = INF;
	while (l + 1 < r)
	{
		LL m = (l + r) / 2;
		auto [val, cnt] = f(a, m);
		if (cnt > k)
			l = m;
		else
			r = m;
	}
	//cerr << r << '\n';
	auto [val, cnt] = f(a, r);
	cout << LL(val + cnt * r) << '\n';
	
	return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 49 ms 1368 KB Output is correct
2 Correct 51 ms 1372 KB Output is correct
3 Correct 57 ms 1628 KB Output is correct
4 Correct 50 ms 1372 KB Output is correct
5 Correct 49 ms 1624 KB Output is correct
6 Correct 50 ms 1368 KB Output is correct
7 Correct 50 ms 1368 KB Output is correct
8 Correct 52 ms 1628 KB Output is correct
9 Correct 59 ms 1372 KB Output is correct
10 Correct 49 ms 1624 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 60 ms 1372 KB Output is correct
2 Correct 54 ms 1628 KB Output is correct
3 Correct 46 ms 1368 KB Output is correct
4 Correct 46 ms 1372 KB Output is correct
5 Correct 50 ms 1372 KB Output is correct
6 Correct 58 ms 1372 KB Output is correct
7 Correct 47 ms 1628 KB Output is correct
8 Correct 64 ms 1624 KB Output is correct
9 Correct 60 ms 1372 KB Output is correct
10 Correct 45 ms 1624 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 96 ms 1628 KB Output is correct
2 Correct 119 ms 4548 KB Output is correct
3 Correct 95 ms 4436 KB Output is correct
4 Correct 99 ms 4440 KB Output is correct
5 Correct 116 ms 4436 KB Output is correct
6 Correct 98 ms 4444 KB Output is correct
7 Correct 96 ms 4440 KB Output is correct
8 Correct 102 ms 4432 KB Output is correct
9 Correct 101 ms 4444 KB Output is correct
10 Correct 98 ms 4424 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 456 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 456 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 456 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 456 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 456 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Correct 0 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 344 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 49 ms 1368 KB Output is correct
2 Correct 51 ms 1372 KB Output is correct
3 Correct 57 ms 1628 KB Output is correct
4 Correct 50 ms 1372 KB Output is correct
5 Correct 49 ms 1624 KB Output is correct
6 Correct 50 ms 1368 KB Output is correct
7 Correct 50 ms 1368 KB Output is correct
8 Correct 52 ms 1628 KB Output is correct
9 Correct 59 ms 1372 KB Output is correct
10 Correct 49 ms 1624 KB Output is correct
11 Correct 60 ms 1372 KB Output is correct
12 Correct 54 ms 1628 KB Output is correct
13 Correct 46 ms 1368 KB Output is correct
14 Correct 46 ms 1372 KB Output is correct
15 Correct 50 ms 1372 KB Output is correct
16 Correct 58 ms 1372 KB Output is correct
17 Correct 47 ms 1628 KB Output is correct
18 Correct 64 ms 1624 KB Output is correct
19 Correct 60 ms 1372 KB Output is correct
20 Correct 45 ms 1624 KB Output is correct
21 Correct 96 ms 1628 KB Output is correct
22 Correct 119 ms 4548 KB Output is correct
23 Correct 95 ms 4436 KB Output is correct
24 Correct 99 ms 4440 KB Output is correct
25 Correct 116 ms 4436 KB Output is correct
26 Correct 98 ms 4444 KB Output is correct
27 Correct 96 ms 4440 KB Output is correct
28 Correct 102 ms 4432 KB Output is correct
29 Correct 101 ms 4444 KB Output is correct
30 Correct 98 ms 4424 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 456 KB Output is correct
41 Correct 1 ms 344 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 456 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 344 KB Output is correct
48 Correct 0 ms 344 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 344 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 344 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 147 ms 4444 KB Output is correct
62 Correct 147 ms 4440 KB Output is correct
63 Correct 134 ms 4520 KB Output is correct
64 Correct 156 ms 4560 KB Output is correct
65 Correct 161 ms 4436 KB Output is correct
66 Correct 160 ms 4436 KB Output is correct
67 Correct 161 ms 4400 KB Output is correct
68 Correct 100 ms 4436 KB Output is correct
69 Correct 97 ms 4436 KB Output is correct
70 Correct 108 ms 4440 KB Output is correct