#include <iostream>
#include <fstream>
#include <vector>
#include <queue>
#include <utility>
#include <algorithm>
#include <cstring>
int x, k;
int arr[300005];
std::pair<int64_t,int> dp[300005][2];
std::pair<int64_t,int> sol(int64_t lambda) {
dp[0][0] = {0,0};
dp[0][1] = {arr[0]-lambda,1};
for (int i = 1; i < x; i++) {
dp[i][0] = std::max(dp[i-1][0],dp[i-1][1]);
dp[i][1] = std::max(std::pair<int64_t,int>(dp[i-1][0].first+arr[i]-lambda,dp[i-1][0].second+1),std::pair<int64_t,int>(dp[i-1][1].first+arr[i],dp[i-1][1].second));
}
return std::max(dp[x-1][0],dp[x-1][1]);
}
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(NULL);
std::cout.tie(NULL);
std::cin >> x >> k;
for (int i = 0; i < x; i++) {
std::cin >> arr[i];
}
const auto bs = [&]() {
int64_t l = 0, r = 1000000000000000000;
int64_t ret = 69420;
while (l<=r) {
int64_t m = (l+r)>>1;
if (sol(m).second<=k) {
ret = m;
r = m-1;
}
else {
l = m+1;
}
}
return ret;
};
int64_t ret = bs();
std::cout << sol(ret).first + ret*sol(ret).second << "\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
62 ms |
10844 KB |
Output is correct |
| 2 |
Correct |
49 ms |
10952 KB |
Output is correct |
| 3 |
Correct |
49 ms |
10844 KB |
Output is correct |
| 4 |
Correct |
49 ms |
10840 KB |
Output is correct |
| 5 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 6 |
Correct |
48 ms |
10960 KB |
Output is correct |
| 7 |
Correct |
53 ms |
10964 KB |
Output is correct |
| 8 |
Correct |
47 ms |
10844 KB |
Output is correct |
| 9 |
Correct |
48 ms |
10968 KB |
Output is correct |
| 10 |
Correct |
53 ms |
10844 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
43 ms |
10840 KB |
Output is correct |
| 2 |
Correct |
43 ms |
10844 KB |
Output is correct |
| 3 |
Correct |
42 ms |
10972 KB |
Output is correct |
| 4 |
Correct |
49 ms |
11100 KB |
Output is correct |
| 5 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 6 |
Correct |
41 ms |
10844 KB |
Output is correct |
| 7 |
Correct |
42 ms |
11008 KB |
Output is correct |
| 8 |
Correct |
50 ms |
10844 KB |
Output is correct |
| 9 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 10 |
Correct |
42 ms |
10844 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
77 ms |
10832 KB |
Output is correct |
| 2 |
Correct |
77 ms |
10756 KB |
Output is correct |
| 3 |
Correct |
75 ms |
10832 KB |
Output is correct |
| 4 |
Correct |
76 ms |
10980 KB |
Output is correct |
| 5 |
Correct |
93 ms |
10972 KB |
Output is correct |
| 6 |
Correct |
77 ms |
10996 KB |
Output is correct |
| 7 |
Correct |
77 ms |
10844 KB |
Output is correct |
| 8 |
Correct |
75 ms |
10840 KB |
Output is correct |
| 9 |
Correct |
77 ms |
10836 KB |
Output is correct |
| 10 |
Correct |
80 ms |
10844 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
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 |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 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 |
0 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
0 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 12 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
0 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 |
0 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 18 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 19 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 20 |
Correct |
0 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 |
2396 KB |
Output is correct |
| 26 |
Correct |
1 ms |
2396 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 |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
62 ms |
10844 KB |
Output is correct |
| 2 |
Correct |
49 ms |
10952 KB |
Output is correct |
| 3 |
Correct |
49 ms |
10844 KB |
Output is correct |
| 4 |
Correct |
49 ms |
10840 KB |
Output is correct |
| 5 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 6 |
Correct |
48 ms |
10960 KB |
Output is correct |
| 7 |
Correct |
53 ms |
10964 KB |
Output is correct |
| 8 |
Correct |
47 ms |
10844 KB |
Output is correct |
| 9 |
Correct |
48 ms |
10968 KB |
Output is correct |
| 10 |
Correct |
53 ms |
10844 KB |
Output is correct |
| 11 |
Correct |
43 ms |
10840 KB |
Output is correct |
| 12 |
Correct |
43 ms |
10844 KB |
Output is correct |
| 13 |
Correct |
42 ms |
10972 KB |
Output is correct |
| 14 |
Correct |
49 ms |
11100 KB |
Output is correct |
| 15 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 16 |
Correct |
41 ms |
10844 KB |
Output is correct |
| 17 |
Correct |
42 ms |
11008 KB |
Output is correct |
| 18 |
Correct |
50 ms |
10844 KB |
Output is correct |
| 19 |
Correct |
48 ms |
10844 KB |
Output is correct |
| 20 |
Correct |
42 ms |
10844 KB |
Output is correct |
| 21 |
Correct |
77 ms |
10832 KB |
Output is correct |
| 22 |
Correct |
77 ms |
10756 KB |
Output is correct |
| 23 |
Correct |
75 ms |
10832 KB |
Output is correct |
| 24 |
Correct |
76 ms |
10980 KB |
Output is correct |
| 25 |
Correct |
93 ms |
10972 KB |
Output is correct |
| 26 |
Correct |
77 ms |
10996 KB |
Output is correct |
| 27 |
Correct |
77 ms |
10844 KB |
Output is correct |
| 28 |
Correct |
75 ms |
10840 KB |
Output is correct |
| 29 |
Correct |
77 ms |
10836 KB |
Output is correct |
| 30 |
Correct |
80 ms |
10844 KB |
Output is correct |
| 31 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 42 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 43 |
Correct |
0 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 |
0 ms |
2396 KB |
Output is correct |
| 47 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 48 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 49 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 50 |
Correct |
0 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 |
2396 KB |
Output is correct |
| 56 |
Correct |
1 ms |
2396 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 |
108 ms |
10972 KB |
Output is correct |
| 62 |
Correct |
106 ms |
10844 KB |
Output is correct |
| 63 |
Correct |
94 ms |
13916 KB |
Output is correct |
| 64 |
Correct |
112 ms |
13880 KB |
Output is correct |
| 65 |
Correct |
118 ms |
13916 KB |
Output is correct |
| 66 |
Correct |
114 ms |
13912 KB |
Output is correct |
| 67 |
Correct |
118 ms |
14164 KB |
Output is correct |
| 68 |
Correct |
79 ms |
14008 KB |
Output is correct |
| 69 |
Correct |
77 ms |
13888 KB |
Output is correct |
| 70 |
Correct |
79 ms |
13932 KB |
Output is correct |
