| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 545010 |
2022-04-03T10:12:07 Z |
pure_mem |
Feast (NOI19_feast) |
C++14 |
|
705 ms |
24588 KB |
#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define X first
#define Y second
#define MP make_pair
using namespace std;
const int N = 3e5 + 12;
int n, k;
ll a[N];
pair<ld, int> dp[N][2];
void prints(pair<ld, int> x) {
cerr << x.X << " " << x.Y;
}
pair<ld, int> get(ld m, bool debug = 0) {
dp[1][0] = {0, 0};
dp[1][1] = {a[1] - m, 1};
for(int i = 2;i <= n;i++) {
dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]);
dp[i][1] = max(MP(dp[i - 1][0].X + a[i] - m, dp[i - 1][0].Y + 1),
MP(dp[i - 1][1].X + a[i], dp[i - 1][1].Y));
if(debug) {
prints(dp[i][0]), cerr << " | ", prints(dp[i][1]);
cerr << "\n";
}
}
return max(dp[n][0], dp[n][1]);
}
int main () {
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> k;
for(int i = 1;i <= n;i++)
cin >> a[i];
ld l = 0, r = 1e15;
for(int it = 0;it < 100;it++) {
ld m = (l + r) / 2;
auto mid = get(m);
if(mid.Y >= k) {
l = m;
}
else {
r = m;
}
}
auto mid = get(l);
ll answer = round(mid.X + l * k);
cout << answer;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
351 ms |
23540 KB |
Output is correct |
| 2 |
Correct |
352 ms |
23924 KB |
Output is correct |
| 3 |
Correct |
392 ms |
24300 KB |
Output is correct |
| 4 |
Correct |
349 ms |
24140 KB |
Output is correct |
| 5 |
Correct |
400 ms |
24008 KB |
Output is correct |
| 6 |
Correct |
366 ms |
23608 KB |
Output is correct |
| 7 |
Correct |
367 ms |
23600 KB |
Output is correct |
| 8 |
Correct |
380 ms |
24080 KB |
Output is correct |
| 9 |
Correct |
365 ms |
23656 KB |
Output is correct |
| 10 |
Correct |
349 ms |
23900 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
363 ms |
22048 KB |
Output is correct |
| 2 |
Correct |
365 ms |
22544 KB |
Output is correct |
| 3 |
Correct |
385 ms |
22040 KB |
Output is correct |
| 4 |
Correct |
350 ms |
22212 KB |
Output is correct |
| 5 |
Correct |
373 ms |
23616 KB |
Output is correct |
| 6 |
Correct |
386 ms |
21996 KB |
Output is correct |
| 7 |
Correct |
388 ms |
22580 KB |
Output is correct |
| 8 |
Correct |
371 ms |
24176 KB |
Output is correct |
| 9 |
Correct |
375 ms |
23548 KB |
Output is correct |
| 10 |
Correct |
335 ms |
22424 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
460 ms |
24240 KB |
Output is correct |
| 2 |
Correct |
445 ms |
23928 KB |
Output is correct |
| 3 |
Correct |
446 ms |
24088 KB |
Output is correct |
| 4 |
Correct |
494 ms |
23928 KB |
Output is correct |
| 5 |
Correct |
444 ms |
24156 KB |
Output is correct |
| 6 |
Correct |
441 ms |
24296 KB |
Output is correct |
| 7 |
Correct |
459 ms |
24288 KB |
Output is correct |
| 8 |
Correct |
452 ms |
24140 KB |
Output is correct |
| 9 |
Correct |
459 ms |
24392 KB |
Output is correct |
| 10 |
Correct |
465 ms |
24396 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
328 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
328 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
328 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
328 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
324 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
340 KB |
Output is correct |
| 2 |
Correct |
1 ms |
340 KB |
Output is correct |
| 3 |
Correct |
1 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
340 KB |
Output is correct |
| 6 |
Correct |
1 ms |
340 KB |
Output is correct |
| 7 |
Correct |
1 ms |
328 KB |
Output is correct |
| 8 |
Correct |
1 ms |
340 KB |
Output is correct |
| 9 |
Correct |
1 ms |
340 KB |
Output is correct |
| 10 |
Correct |
1 ms |
328 KB |
Output is correct |
| 11 |
Correct |
1 ms |
340 KB |
Output is correct |
| 12 |
Correct |
1 ms |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
324 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
1 ms |
340 KB |
Output is correct |
| 18 |
Correct |
1 ms |
340 KB |
Output is correct |
| 19 |
Correct |
1 ms |
340 KB |
Output is correct |
| 20 |
Correct |
1 ms |
340 KB |
Output is correct |
| 21 |
Correct |
4 ms |
468 KB |
Output is correct |
| 22 |
Correct |
4 ms |
464 KB |
Output is correct |
| 23 |
Correct |
4 ms |
468 KB |
Output is correct |
| 24 |
Correct |
5 ms |
468 KB |
Output is correct |
| 25 |
Correct |
5 ms |
468 KB |
Output is correct |
| 26 |
Correct |
4 ms |
464 KB |
Output is correct |
| 27 |
Correct |
4 ms |
468 KB |
Output is correct |
| 28 |
Correct |
5 ms |
468 KB |
Output is correct |
| 29 |
Correct |
4 ms |
468 KB |
Output is correct |
| 30 |
Correct |
4 ms |
468 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
351 ms |
23540 KB |
Output is correct |
| 2 |
Correct |
352 ms |
23924 KB |
Output is correct |
| 3 |
Correct |
392 ms |
24300 KB |
Output is correct |
| 4 |
Correct |
349 ms |
24140 KB |
Output is correct |
| 5 |
Correct |
400 ms |
24008 KB |
Output is correct |
| 6 |
Correct |
366 ms |
23608 KB |
Output is correct |
| 7 |
Correct |
367 ms |
23600 KB |
Output is correct |
| 8 |
Correct |
380 ms |
24080 KB |
Output is correct |
| 9 |
Correct |
365 ms |
23656 KB |
Output is correct |
| 10 |
Correct |
349 ms |
23900 KB |
Output is correct |
| 11 |
Correct |
363 ms |
22048 KB |
Output is correct |
| 12 |
Correct |
365 ms |
22544 KB |
Output is correct |
| 13 |
Correct |
385 ms |
22040 KB |
Output is correct |
| 14 |
Correct |
350 ms |
22212 KB |
Output is correct |
| 15 |
Correct |
373 ms |
23616 KB |
Output is correct |
| 16 |
Correct |
386 ms |
21996 KB |
Output is correct |
| 17 |
Correct |
388 ms |
22580 KB |
Output is correct |
| 18 |
Correct |
371 ms |
24176 KB |
Output is correct |
| 19 |
Correct |
375 ms |
23548 KB |
Output is correct |
| 20 |
Correct |
335 ms |
22424 KB |
Output is correct |
| 21 |
Correct |
460 ms |
24240 KB |
Output is correct |
| 22 |
Correct |
445 ms |
23928 KB |
Output is correct |
| 23 |
Correct |
446 ms |
24088 KB |
Output is correct |
| 24 |
Correct |
494 ms |
23928 KB |
Output is correct |
| 25 |
Correct |
444 ms |
24156 KB |
Output is correct |
| 26 |
Correct |
441 ms |
24296 KB |
Output is correct |
| 27 |
Correct |
459 ms |
24288 KB |
Output is correct |
| 28 |
Correct |
452 ms |
24140 KB |
Output is correct |
| 29 |
Correct |
459 ms |
24392 KB |
Output is correct |
| 30 |
Correct |
465 ms |
24396 KB |
Output is correct |
| 31 |
Correct |
0 ms |
340 KB |
Output is correct |
| 32 |
Correct |
1 ms |
340 KB |
Output is correct |
| 33 |
Correct |
1 ms |
212 KB |
Output is correct |
| 34 |
Correct |
1 ms |
212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
340 KB |
Output is correct |
| 36 |
Correct |
1 ms |
340 KB |
Output is correct |
| 37 |
Correct |
1 ms |
328 KB |
Output is correct |
| 38 |
Correct |
1 ms |
340 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
328 KB |
Output is correct |
| 41 |
Correct |
1 ms |
340 KB |
Output is correct |
| 42 |
Correct |
1 ms |
340 KB |
Output is correct |
| 43 |
Correct |
1 ms |
340 KB |
Output is correct |
| 44 |
Correct |
1 ms |
340 KB |
Output is correct |
| 45 |
Correct |
1 ms |
324 KB |
Output is correct |
| 46 |
Correct |
1 ms |
340 KB |
Output is correct |
| 47 |
Correct |
1 ms |
340 KB |
Output is correct |
| 48 |
Correct |
1 ms |
340 KB |
Output is correct |
| 49 |
Correct |
1 ms |
340 KB |
Output is correct |
| 50 |
Correct |
1 ms |
340 KB |
Output is correct |
| 51 |
Correct |
4 ms |
468 KB |
Output is correct |
| 52 |
Correct |
4 ms |
464 KB |
Output is correct |
| 53 |
Correct |
4 ms |
468 KB |
Output is correct |
| 54 |
Correct |
5 ms |
468 KB |
Output is correct |
| 55 |
Correct |
5 ms |
468 KB |
Output is correct |
| 56 |
Correct |
4 ms |
464 KB |
Output is correct |
| 57 |
Correct |
4 ms |
468 KB |
Output is correct |
| 58 |
Correct |
5 ms |
468 KB |
Output is correct |
| 59 |
Correct |
4 ms |
468 KB |
Output is correct |
| 60 |
Correct |
4 ms |
468 KB |
Output is correct |
| 61 |
Correct |
637 ms |
23900 KB |
Output is correct |
| 62 |
Correct |
624 ms |
24588 KB |
Output is correct |
| 63 |
Correct |
563 ms |
23828 KB |
Output is correct |
| 64 |
Correct |
690 ms |
24208 KB |
Output is correct |
| 65 |
Correct |
688 ms |
24288 KB |
Output is correct |
| 66 |
Correct |
705 ms |
24236 KB |
Output is correct |
| 67 |
Correct |
671 ms |
23860 KB |
Output is correct |
| 68 |
Correct |
497 ms |
24324 KB |
Output is correct |
| 69 |
Correct |
480 ms |
23844 KB |
Output is correct |
| 70 |
Correct |
489 ms |
23740 KB |
Output is correct |
