Submission #981175

# Submission time Handle Problem Language Result Execution time Memory
981175 2024-05-13T01:12:03 Z beaboss Feast (NOI19_feast) C++14
100 / 100
141 ms 15232 KB
// Source: https://oj.uz/problem/view/NOI19_feast
// 

#include "bits/stdc++.h"

using namespace std;
#define FOR(i, a, b) for (ll i = a; i < b; i++)
typedef long long ll;

typedef pair<ll, ll> pii;
#define s second
#define f first

const ll N = 3e5 + 10;
ll a[N];
pii dp[N][2];
ll n, k;

pii solve(ll l) {
	dp[0][0] = {0, 0};
	dp[0][1] = {a[0] - l, 1};

	FOR(i, 1, n) {
		dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
		dp[i][1] = max(make_pair(dp[i-1][0].f + a[i] - l, dp[i-1][0].s + 1), make_pair(dp[i-1][1].f + a[i], dp[i-1][1].s));
	}
	return max(dp[n-1][1], dp[n-1][0]);

}

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

	cin >> n >> k;

	FOR(i, 0 ,n) cin >> a[i];

	ll lo = 0;
	ll hi = 1e18;

	while (lo < hi) {
		ll m = (lo + hi + 1)/2;
		pii res = solve(m);
		if (res.s >= k) lo = m;
		else hi = m -1;
	}
	// cout << lo << solve(lo).f << endl;
	cout << solve(lo).f + k * lo << endl;

}












# Verdict Execution time Memory Grader output
1 Correct 73 ms 13764 KB Output is correct
2 Correct 74 ms 14992 KB Output is correct
3 Correct 81 ms 14928 KB Output is correct
4 Correct 75 ms 14932 KB Output is correct
5 Correct 75 ms 14928 KB Output is correct
6 Correct 73 ms 14908 KB Output is correct
7 Correct 82 ms 14672 KB Output is correct
8 Correct 73 ms 14796 KB Output is correct
9 Correct 73 ms 14936 KB Output is correct
10 Correct 79 ms 14968 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 67 ms 12376 KB Output is correct
2 Correct 69 ms 13308 KB Output is correct
3 Correct 67 ms 13120 KB Output is correct
4 Correct 67 ms 13144 KB Output is correct
5 Correct 77 ms 14676 KB Output is correct
6 Correct 67 ms 13148 KB Output is correct
7 Correct 67 ms 13316 KB Output is correct
8 Correct 77 ms 14928 KB Output is correct
9 Correct 75 ms 14684 KB Output is correct
10 Correct 67 ms 13148 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 99 ms 13908 KB Output is correct
2 Correct 99 ms 15104 KB Output is correct
3 Correct 98 ms 15152 KB Output is correct
4 Correct 96 ms 14932 KB Output is correct
5 Correct 96 ms 15152 KB Output is correct
6 Correct 110 ms 15084 KB Output is correct
7 Correct 99 ms 15216 KB Output is correct
8 Correct 97 ms 15152 KB Output is correct
9 Correct 98 ms 15220 KB Output is correct
10 Correct 110 ms 15208 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 2 ms 2392 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 1 ms 2396 KB Output is correct
7 Correct 1 ms 2396 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 1 ms 2392 KB Output is correct
10 Correct 1 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2648 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 2 ms 2392 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 1 ms 2396 KB Output is correct
22 Correct 1 ms 2396 KB Output is correct
23 Correct 1 ms 2396 KB Output is correct
24 Correct 1 ms 2396 KB Output is correct
25 Correct 1 ms 2408 KB Output is correct
26 Correct 1 ms 2392 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 1 ms 2396 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 73 ms 13764 KB Output is correct
2 Correct 74 ms 14992 KB Output is correct
3 Correct 81 ms 14928 KB Output is correct
4 Correct 75 ms 14932 KB Output is correct
5 Correct 75 ms 14928 KB Output is correct
6 Correct 73 ms 14908 KB Output is correct
7 Correct 82 ms 14672 KB Output is correct
8 Correct 73 ms 14796 KB Output is correct
9 Correct 73 ms 14936 KB Output is correct
10 Correct 79 ms 14968 KB Output is correct
11 Correct 67 ms 12376 KB Output is correct
12 Correct 69 ms 13308 KB Output is correct
13 Correct 67 ms 13120 KB Output is correct
14 Correct 67 ms 13144 KB Output is correct
15 Correct 77 ms 14676 KB Output is correct
16 Correct 67 ms 13148 KB Output is correct
17 Correct 67 ms 13316 KB Output is correct
18 Correct 77 ms 14928 KB Output is correct
19 Correct 75 ms 14684 KB Output is correct
20 Correct 67 ms 13148 KB Output is correct
21 Correct 99 ms 13908 KB Output is correct
22 Correct 99 ms 15104 KB Output is correct
23 Correct 98 ms 15152 KB Output is correct
24 Correct 96 ms 14932 KB Output is correct
25 Correct 96 ms 15152 KB Output is correct
26 Correct 110 ms 15084 KB Output is correct
27 Correct 99 ms 15216 KB Output is correct
28 Correct 97 ms 15152 KB Output is correct
29 Correct 98 ms 15220 KB Output is correct
30 Correct 110 ms 15208 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 1 ms 2396 KB Output is correct
37 Correct 1 ms 2396 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 1 ms 2392 KB Output is correct
40 Correct 1 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2648 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 2 ms 2392 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 1 ms 2396 KB Output is correct
52 Correct 1 ms 2396 KB Output is correct
53 Correct 1 ms 2396 KB Output is correct
54 Correct 1 ms 2396 KB Output is correct
55 Correct 1 ms 2408 KB Output is correct
56 Correct 1 ms 2392 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 1 ms 2396 KB Output is correct
61 Correct 130 ms 15084 KB Output is correct
62 Correct 128 ms 15232 KB Output is correct
63 Correct 110 ms 14988 KB Output is correct
64 Correct 131 ms 15196 KB Output is correct
65 Correct 141 ms 15184 KB Output is correct
66 Correct 133 ms 15184 KB Output is correct
67 Correct 130 ms 14932 KB Output is correct
68 Correct 99 ms 15128 KB Output is correct
69 Correct 96 ms 15068 KB Output is correct
70 Correct 96 ms 15068 KB Output is correct