#include <bits/stdc++.h>
using namespace std;
#define ll long long
const int MAX = 3e5 + 5;
int n, k, A[MAX]; pair<ll, ll> dp[MAX][2];
pair<ll, ll> better(pair<ll, ll> a, pair<ll, ll> b){
if (a.first == b.first)
return (a.second < b.second ? a : b);
return (a.first > b.first ? a : b);
}
bool solve(ll lmb){
dp[0][0] = {0, 0};
dp[0][1] = {-1e18, 0};
for (int i = 1; i <= n; i++){
dp[i][0] = better(dp[i - 1][0], dp[i - 1][1]);
dp[i][1] = better(
{dp[i - 1][0].first + A[i] - lmb, dp[i - 1][0].second + 1},
{dp[i - 1][1].first + A[i], dp[i - 1][1].second}
);
}
return better(dp[n][0], dp[n][1]).second <= k;
}
int main(){
ios_base::sync_with_stdio; cin.tie(0);
cin >> n >> k;
for (int i = 1; i <= n; i++)
cin >> A[i];
ll L = 0, H = 1e15;
while (L < H){
ll M = (L + H) / 2;
solve(M) ? H = M : L = M + 1;
}
solve(L);
cout << better(dp[n][0], dp[n][1]).first + L * k << "\n";
}
Compilation message
feast.cpp: In function 'int main()':
feast.cpp:33:15: warning: statement is a reference, not call, to function 'std::ios_base::sync_with_stdio' [-Waddress]
33 | ios_base::sync_with_stdio; cin.tie(0);
| ~~~~~~~~~~^~~~~~~~~~~~~~~
feast.cpp:33:15: warning: statement has no effect [-Wunused-value]
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
214 ms |
12372 KB |
Output is correct |
2 |
Correct |
219 ms |
12880 KB |
Output is correct |
3 |
Correct |
224 ms |
12572 KB |
Output is correct |
4 |
Correct |
219 ms |
12704 KB |
Output is correct |
5 |
Correct |
221 ms |
12708 KB |
Output is correct |
6 |
Correct |
216 ms |
12368 KB |
Output is correct |
7 |
Correct |
215 ms |
12480 KB |
Output is correct |
8 |
Correct |
219 ms |
12712 KB |
Output is correct |
9 |
Correct |
222 ms |
12484 KB |
Output is correct |
10 |
Correct |
218 ms |
12752 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
172 ms |
11536 KB |
Output is correct |
2 |
Correct |
178 ms |
11748 KB |
Output is correct |
3 |
Correct |
175 ms |
11812 KB |
Output is correct |
4 |
Correct |
177 ms |
11856 KB |
Output is correct |
5 |
Correct |
210 ms |
12372 KB |
Output is correct |
6 |
Correct |
177 ms |
11856 KB |
Output is correct |
7 |
Correct |
184 ms |
11744 KB |
Output is correct |
8 |
Correct |
218 ms |
12624 KB |
Output is correct |
9 |
Correct |
219 ms |
12476 KB |
Output is correct |
10 |
Correct |
179 ms |
11696 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
217 ms |
12712 KB |
Output is correct |
2 |
Correct |
210 ms |
12708 KB |
Output is correct |
3 |
Correct |
214 ms |
12628 KB |
Output is correct |
4 |
Correct |
212 ms |
12708 KB |
Output is correct |
5 |
Correct |
216 ms |
12964 KB |
Output is correct |
6 |
Correct |
218 ms |
12692 KB |
Output is correct |
7 |
Correct |
221 ms |
12772 KB |
Output is correct |
8 |
Correct |
216 ms |
12712 KB |
Output is correct |
9 |
Correct |
215 ms |
12624 KB |
Output is correct |
10 |
Correct |
218 ms |
12624 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 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 |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2392 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
2392 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 |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2392 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 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 |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2392 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 |
2392 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 |
2392 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2392 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 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 |
2396 KB |
Output is correct |
16 |
Correct |
1 ms |
2396 KB |
Output is correct |
17 |
Correct |
1 ms |
2396 KB |
Output is correct |
18 |
Correct |
1 ms |
2392 KB |
Output is correct |
19 |
Correct |
1 ms |
2396 KB |
Output is correct |
20 |
Correct |
1 ms |
2396 KB |
Output is correct |
21 |
Correct |
2 ms |
2512 KB |
Output is correct |
22 |
Correct |
2 ms |
2392 KB |
Output is correct |
23 |
Correct |
2 ms |
2392 KB |
Output is correct |
24 |
Correct |
2 ms |
2392 KB |
Output is correct |
25 |
Correct |
2 ms |
2392 KB |
Output is correct |
26 |
Correct |
2 ms |
2396 KB |
Output is correct |
27 |
Correct |
2 ms |
2464 KB |
Output is correct |
28 |
Correct |
2 ms |
2500 KB |
Output is correct |
29 |
Correct |
2 ms |
2396 KB |
Output is correct |
30 |
Correct |
2 ms |
2396 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
214 ms |
12372 KB |
Output is correct |
2 |
Correct |
219 ms |
12880 KB |
Output is correct |
3 |
Correct |
224 ms |
12572 KB |
Output is correct |
4 |
Correct |
219 ms |
12704 KB |
Output is correct |
5 |
Correct |
221 ms |
12708 KB |
Output is correct |
6 |
Correct |
216 ms |
12368 KB |
Output is correct |
7 |
Correct |
215 ms |
12480 KB |
Output is correct |
8 |
Correct |
219 ms |
12712 KB |
Output is correct |
9 |
Correct |
222 ms |
12484 KB |
Output is correct |
10 |
Correct |
218 ms |
12752 KB |
Output is correct |
11 |
Correct |
172 ms |
11536 KB |
Output is correct |
12 |
Correct |
178 ms |
11748 KB |
Output is correct |
13 |
Correct |
175 ms |
11812 KB |
Output is correct |
14 |
Correct |
177 ms |
11856 KB |
Output is correct |
15 |
Correct |
210 ms |
12372 KB |
Output is correct |
16 |
Correct |
177 ms |
11856 KB |
Output is correct |
17 |
Correct |
184 ms |
11744 KB |
Output is correct |
18 |
Correct |
218 ms |
12624 KB |
Output is correct |
19 |
Correct |
219 ms |
12476 KB |
Output is correct |
20 |
Correct |
179 ms |
11696 KB |
Output is correct |
21 |
Correct |
217 ms |
12712 KB |
Output is correct |
22 |
Correct |
210 ms |
12708 KB |
Output is correct |
23 |
Correct |
214 ms |
12628 KB |
Output is correct |
24 |
Correct |
212 ms |
12708 KB |
Output is correct |
25 |
Correct |
216 ms |
12964 KB |
Output is correct |
26 |
Correct |
218 ms |
12692 KB |
Output is correct |
27 |
Correct |
221 ms |
12772 KB |
Output is correct |
28 |
Correct |
216 ms |
12712 KB |
Output is correct |
29 |
Correct |
215 ms |
12624 KB |
Output is correct |
30 |
Correct |
218 ms |
12624 KB |
Output is correct |
31 |
Correct |
1 ms |
2392 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 |
2392 KB |
Output is correct |
37 |
Correct |
1 ms |
2396 KB |
Output is correct |
38 |
Correct |
1 ms |
2392 KB |
Output is correct |
39 |
Correct |
1 ms |
2396 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 |
2396 KB |
Output is correct |
46 |
Correct |
1 ms |
2396 KB |
Output is correct |
47 |
Correct |
1 ms |
2396 KB |
Output is correct |
48 |
Correct |
1 ms |
2392 KB |
Output is correct |
49 |
Correct |
1 ms |
2396 KB |
Output is correct |
50 |
Correct |
1 ms |
2396 KB |
Output is correct |
51 |
Correct |
2 ms |
2512 KB |
Output is correct |
52 |
Correct |
2 ms |
2392 KB |
Output is correct |
53 |
Correct |
2 ms |
2392 KB |
Output is correct |
54 |
Correct |
2 ms |
2392 KB |
Output is correct |
55 |
Correct |
2 ms |
2392 KB |
Output is correct |
56 |
Correct |
2 ms |
2396 KB |
Output is correct |
57 |
Correct |
2 ms |
2464 KB |
Output is correct |
58 |
Correct |
2 ms |
2500 KB |
Output is correct |
59 |
Correct |
2 ms |
2396 KB |
Output is correct |
60 |
Correct |
2 ms |
2396 KB |
Output is correct |
61 |
Correct |
215 ms |
12708 KB |
Output is correct |
62 |
Correct |
220 ms |
12776 KB |
Output is correct |
63 |
Correct |
212 ms |
12628 KB |
Output is correct |
64 |
Correct |
224 ms |
12768 KB |
Output is correct |
65 |
Correct |
217 ms |
12628 KB |
Output is correct |
66 |
Correct |
218 ms |
12764 KB |
Output is correct |
67 |
Correct |
217 ms |
12740 KB |
Output is correct |
68 |
Correct |
226 ms |
12624 KB |
Output is correct |
69 |
Correct |
211 ms |
12744 KB |
Output is correct |
70 |
Correct |
211 ms |
12624 KB |
Output is correct |