#include <bits/stdc++.h>
#define pii pair<ll, ll>
typedef long long ll;
using namespace std;
const int MAX = 300003;
ll A[MAX];
pii dp[MAX][2];
const pii operator+(const pii a, const pii b) {
return {a.first + b.first, a.second + b.second};
}
pii Check(ll N, pii p) {
dp[0][0] = {0, 0};
dp[0][1] = {-1e18, 0};
for (int i = 1; i <= N; ++i) {
dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]);
dp[i][1] = max(dp[i - 1][1] + pii{A[i], 0}, dp[i - 1][0] + pii{A[i], 1} + p);
}
return max(dp[N][0], dp[N][1]);
}
int main() {
ios::sync_with_stdio(0); cin.tie(0);
ll N, K;
cin >> N >> K;
for (int i = 1; i <= N; ++i) cin >> A[i];
ll l = 0, r = 1e15;
while (l + 1 < r) {
ll mid = (l + r) >> 1;
pii p = Check(N, pii{-mid, 0});
(p.second < K ? r : l) = mid;
}
pii t = Check(N, pii{-l, 0});
ll ans = t.first + t.second * l;
cout << ans;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
66 ms |
14904 KB |
Output is correct |
| 2 |
Correct |
67 ms |
14996 KB |
Output is correct |
| 3 |
Correct |
67 ms |
15060 KB |
Output is correct |
| 4 |
Correct |
70 ms |
15020 KB |
Output is correct |
| 5 |
Correct |
65 ms |
15004 KB |
Output is correct |
| 6 |
Correct |
66 ms |
14908 KB |
Output is correct |
| 7 |
Correct |
64 ms |
14896 KB |
Output is correct |
| 8 |
Correct |
67 ms |
15004 KB |
Output is correct |
| 9 |
Correct |
65 ms |
14680 KB |
Output is correct |
| 10 |
Correct |
71 ms |
14900 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
55 ms |
13144 KB |
Output is correct |
| 2 |
Correct |
56 ms |
13148 KB |
Output is correct |
| 3 |
Correct |
54 ms |
13148 KB |
Output is correct |
| 4 |
Correct |
61 ms |
13356 KB |
Output is correct |
| 5 |
Correct |
64 ms |
14680 KB |
Output is correct |
| 6 |
Correct |
55 ms |
13224 KB |
Output is correct |
| 7 |
Correct |
59 ms |
13148 KB |
Output is correct |
| 8 |
Correct |
82 ms |
14928 KB |
Output is correct |
| 9 |
Correct |
71 ms |
14888 KB |
Output is correct |
| 10 |
Correct |
57 ms |
13144 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
84 ms |
15196 KB |
Output is correct |
| 2 |
Correct |
81 ms |
15104 KB |
Output is correct |
| 3 |
Correct |
86 ms |
15156 KB |
Output is correct |
| 4 |
Correct |
81 ms |
15016 KB |
Output is correct |
| 5 |
Correct |
83 ms |
15156 KB |
Output is correct |
| 6 |
Correct |
83 ms |
15196 KB |
Output is correct |
| 7 |
Correct |
82 ms |
15440 KB |
Output is correct |
| 8 |
Correct |
80 ms |
14904 KB |
Output is correct |
| 9 |
Correct |
83 ms |
15132 KB |
Output is correct |
| 10 |
Correct |
84 ms |
15188 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 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 |
2392 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 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 |
2392 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 |
2392 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 |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2508 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2392 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 |
2392 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 |
2392 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 |
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 |
2524 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 |
2396 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2536 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 |
2524 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
66 ms |
14904 KB |
Output is correct |
| 2 |
Correct |
67 ms |
14996 KB |
Output is correct |
| 3 |
Correct |
67 ms |
15060 KB |
Output is correct |
| 4 |
Correct |
70 ms |
15020 KB |
Output is correct |
| 5 |
Correct |
65 ms |
15004 KB |
Output is correct |
| 6 |
Correct |
66 ms |
14908 KB |
Output is correct |
| 7 |
Correct |
64 ms |
14896 KB |
Output is correct |
| 8 |
Correct |
67 ms |
15004 KB |
Output is correct |
| 9 |
Correct |
65 ms |
14680 KB |
Output is correct |
| 10 |
Correct |
71 ms |
14900 KB |
Output is correct |
| 11 |
Correct |
55 ms |
13144 KB |
Output is correct |
| 12 |
Correct |
56 ms |
13148 KB |
Output is correct |
| 13 |
Correct |
54 ms |
13148 KB |
Output is correct |
| 14 |
Correct |
61 ms |
13356 KB |
Output is correct |
| 15 |
Correct |
64 ms |
14680 KB |
Output is correct |
| 16 |
Correct |
55 ms |
13224 KB |
Output is correct |
| 17 |
Correct |
59 ms |
13148 KB |
Output is correct |
| 18 |
Correct |
82 ms |
14928 KB |
Output is correct |
| 19 |
Correct |
71 ms |
14888 KB |
Output is correct |
| 20 |
Correct |
57 ms |
13144 KB |
Output is correct |
| 21 |
Correct |
84 ms |
15196 KB |
Output is correct |
| 22 |
Correct |
81 ms |
15104 KB |
Output is correct |
| 23 |
Correct |
86 ms |
15156 KB |
Output is correct |
| 24 |
Correct |
81 ms |
15016 KB |
Output is correct |
| 25 |
Correct |
83 ms |
15156 KB |
Output is correct |
| 26 |
Correct |
83 ms |
15196 KB |
Output is correct |
| 27 |
Correct |
82 ms |
15440 KB |
Output is correct |
| 28 |
Correct |
80 ms |
14904 KB |
Output is correct |
| 29 |
Correct |
83 ms |
15132 KB |
Output is correct |
| 30 |
Correct |
84 ms |
15188 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 |
2508 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2392 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 |
2392 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 |
2392 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 |
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 |
2524 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 |
2396 KB |
Output is correct |
| 56 |
Correct |
1 ms |
2536 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 |
2524 KB |
Output is correct |
| 61 |
Correct |
124 ms |
15100 KB |
Output is correct |
| 62 |
Correct |
115 ms |
15184 KB |
Output is correct |
| 63 |
Correct |
97 ms |
14940 KB |
Output is correct |
| 64 |
Correct |
125 ms |
15188 KB |
Output is correct |
| 65 |
Correct |
126 ms |
15188 KB |
Output is correct |
| 66 |
Correct |
125 ms |
14940 KB |
Output is correct |
| 67 |
Correct |
141 ms |
14940 KB |
Output is correct |
| 68 |
Correct |
84 ms |
15196 KB |
Output is correct |
| 69 |
Correct |
83 ms |
14928 KB |
Output is correct |
| 70 |
Correct |
79 ms |
15068 KB |
Output is correct |
