| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1107138 |
2024-10-31T17:46:58 Z |
vnedu |
Feast (NOI19_feast) |
C++11 |
|
482 ms |
13644 KB |
#include <bits/stdc++.h>
using namespace std;
#define ll long long
int main() {
int n, k;
cin >> n >> k;
int a[n];
for (int &i : a) { cin >> i; }
/**
* @return the maximum sum along with the number of subarrays used
* if creating a subarray penalizes the sum by "lmb" and
* there is no limit to the number of subarrays you can create
*/
auto solve_lambda = [&](ll lmb) {
pair<ll, ll> dp[n][2];
dp[0][0] = {0, 0};
dp[0][1] = {a[0] - lmb, 1};
for (int i = 1; i < n; i++) {
dp[i][0] = max(dp[i - 1][0], dp[i - 1][1]);
dp[i][1] =
max(make_pair(dp[i - 1][0].first + a[i] - lmb, dp[i - 1][0].second + 1),
make_pair(dp[i - 1][1].first + a[i], dp[i - 1][1].second));
}
return max(dp[n - 1][0], dp[n - 1][1]);
};
ll lo = 0;
ll hi = 1e18;
while (lo < hi) {
ll mid = (lo + hi + 1) / 2;
if (solve_lambda(mid).second<solve_lambda(mid+1).second) cout<<1/0;
solve_lambda(mid).second >= k ? lo = mid : hi = mid - 1;
}
cout << solve_lambda(lo).first + lo * k << endl;
}
Compilation message
feast.cpp: In function 'int main()':
feast.cpp:39:72: warning: division by zero [-Wdiv-by-zero]
39 | if (solve_lambda(mid).second<solve_lambda(mid+1).second) cout<<1/0;
| ~^~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
207 ms |
11616 KB |
Output is correct |
| 2 |
Correct |
228 ms |
12612 KB |
Output is correct |
| 3 |
Correct |
230 ms |
12616 KB |
Output is correct |
| 4 |
Correct |
219 ms |
12872 KB |
Output is correct |
| 5 |
Correct |
213 ms |
10824 KB |
Output is correct |
| 6 |
Correct |
257 ms |
13128 KB |
Output is correct |
| 7 |
Correct |
228 ms |
13128 KB |
Output is correct |
| 8 |
Correct |
222 ms |
12104 KB |
Output is correct |
| 9 |
Correct |
215 ms |
11852 KB |
Output is correct |
| 10 |
Correct |
220 ms |
11848 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
172 ms |
10568 KB |
Output is correct |
| 2 |
Correct |
170 ms |
11692 KB |
Output is correct |
| 3 |
Correct |
176 ms |
10568 KB |
Output is correct |
| 4 |
Correct |
199 ms |
10964 KB |
Output is correct |
| 5 |
Correct |
214 ms |
11692 KB |
Output is correct |
| 6 |
Correct |
180 ms |
11052 KB |
Output is correct |
| 7 |
Correct |
178 ms |
10816 KB |
Output is correct |
| 8 |
Correct |
214 ms |
13212 KB |
Output is correct |
| 9 |
Correct |
208 ms |
13128 KB |
Output is correct |
| 10 |
Correct |
195 ms |
11848 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
290 ms |
11936 KB |
Output is correct |
| 2 |
Correct |
292 ms |
10568 KB |
Output is correct |
| 3 |
Correct |
296 ms |
10796 KB |
Output is correct |
| 4 |
Correct |
277 ms |
10524 KB |
Output is correct |
| 5 |
Correct |
287 ms |
11852 KB |
Output is correct |
| 6 |
Correct |
287 ms |
13644 KB |
Output is correct |
| 7 |
Correct |
295 ms |
11444 KB |
Output is correct |
| 8 |
Correct |
287 ms |
10796 KB |
Output is correct |
| 9 |
Correct |
312 ms |
11848 KB |
Output is correct |
| 10 |
Correct |
313 ms |
11064 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
336 KB |
Output is correct |
| 2 |
Correct |
1 ms |
336 KB |
Output is correct |
| 3 |
Correct |
1 ms |
336 KB |
Output is correct |
| 4 |
Correct |
1 ms |
336 KB |
Output is correct |
| 5 |
Correct |
1 ms |
336 KB |
Output is correct |
| 6 |
Correct |
1 ms |
336 KB |
Output is correct |
| 7 |
Correct |
1 ms |
336 KB |
Output is correct |
| 8 |
Correct |
1 ms |
336 KB |
Output is correct |
| 9 |
Correct |
1 ms |
336 KB |
Output is correct |
| 10 |
Correct |
1 ms |
336 KB |
Output is correct |
| 11 |
Correct |
1 ms |
336 KB |
Output is correct |
| 12 |
Correct |
1 ms |
336 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
336 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
336 KB |
Output is correct |
| 17 |
Correct |
1 ms |
336 KB |
Output is correct |
| 18 |
Correct |
1 ms |
336 KB |
Output is correct |
| 19 |
Correct |
1 ms |
336 KB |
Output is correct |
| 20 |
Correct |
1 ms |
336 KB |
Output is correct |
| 21 |
Correct |
3 ms |
336 KB |
Output is correct |
| 22 |
Correct |
2 ms |
336 KB |
Output is correct |
| 23 |
Correct |
2 ms |
336 KB |
Output is correct |
| 24 |
Correct |
3 ms |
348 KB |
Output is correct |
| 25 |
Correct |
3 ms |
336 KB |
Output is correct |
| 26 |
Correct |
2 ms |
336 KB |
Output is correct |
| 27 |
Correct |
2 ms |
336 KB |
Output is correct |
| 28 |
Correct |
2 ms |
336 KB |
Output is correct |
| 29 |
Correct |
2 ms |
336 KB |
Output is correct |
| 30 |
Correct |
4 ms |
336 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
207 ms |
11616 KB |
Output is correct |
| 2 |
Correct |
228 ms |
12612 KB |
Output is correct |
| 3 |
Correct |
230 ms |
12616 KB |
Output is correct |
| 4 |
Correct |
219 ms |
12872 KB |
Output is correct |
| 5 |
Correct |
213 ms |
10824 KB |
Output is correct |
| 6 |
Correct |
257 ms |
13128 KB |
Output is correct |
| 7 |
Correct |
228 ms |
13128 KB |
Output is correct |
| 8 |
Correct |
222 ms |
12104 KB |
Output is correct |
| 9 |
Correct |
215 ms |
11852 KB |
Output is correct |
| 10 |
Correct |
220 ms |
11848 KB |
Output is correct |
| 11 |
Correct |
172 ms |
10568 KB |
Output is correct |
| 12 |
Correct |
170 ms |
11692 KB |
Output is correct |
| 13 |
Correct |
176 ms |
10568 KB |
Output is correct |
| 14 |
Correct |
199 ms |
10964 KB |
Output is correct |
| 15 |
Correct |
214 ms |
11692 KB |
Output is correct |
| 16 |
Correct |
180 ms |
11052 KB |
Output is correct |
| 17 |
Correct |
178 ms |
10816 KB |
Output is correct |
| 18 |
Correct |
214 ms |
13212 KB |
Output is correct |
| 19 |
Correct |
208 ms |
13128 KB |
Output is correct |
| 20 |
Correct |
195 ms |
11848 KB |
Output is correct |
| 21 |
Correct |
290 ms |
11936 KB |
Output is correct |
| 22 |
Correct |
292 ms |
10568 KB |
Output is correct |
| 23 |
Correct |
296 ms |
10796 KB |
Output is correct |
| 24 |
Correct |
277 ms |
10524 KB |
Output is correct |
| 25 |
Correct |
287 ms |
11852 KB |
Output is correct |
| 26 |
Correct |
287 ms |
13644 KB |
Output is correct |
| 27 |
Correct |
295 ms |
11444 KB |
Output is correct |
| 28 |
Correct |
287 ms |
10796 KB |
Output is correct |
| 29 |
Correct |
312 ms |
11848 KB |
Output is correct |
| 30 |
Correct |
313 ms |
11064 KB |
Output is correct |
| 31 |
Correct |
1 ms |
336 KB |
Output is correct |
| 32 |
Correct |
1 ms |
336 KB |
Output is correct |
| 33 |
Correct |
1 ms |
336 KB |
Output is correct |
| 34 |
Correct |
1 ms |
336 KB |
Output is correct |
| 35 |
Correct |
1 ms |
336 KB |
Output is correct |
| 36 |
Correct |
1 ms |
336 KB |
Output is correct |
| 37 |
Correct |
1 ms |
336 KB |
Output is correct |
| 38 |
Correct |
1 ms |
336 KB |
Output is correct |
| 39 |
Correct |
1 ms |
336 KB |
Output is correct |
| 40 |
Correct |
1 ms |
336 KB |
Output is correct |
| 41 |
Correct |
1 ms |
336 KB |
Output is correct |
| 42 |
Correct |
1 ms |
336 KB |
Output is correct |
| 43 |
Correct |
1 ms |
336 KB |
Output is correct |
| 44 |
Correct |
1 ms |
336 KB |
Output is correct |
| 45 |
Correct |
1 ms |
336 KB |
Output is correct |
| 46 |
Correct |
1 ms |
336 KB |
Output is correct |
| 47 |
Correct |
1 ms |
336 KB |
Output is correct |
| 48 |
Correct |
1 ms |
336 KB |
Output is correct |
| 49 |
Correct |
1 ms |
336 KB |
Output is correct |
| 50 |
Correct |
1 ms |
336 KB |
Output is correct |
| 51 |
Correct |
3 ms |
336 KB |
Output is correct |
| 52 |
Correct |
2 ms |
336 KB |
Output is correct |
| 53 |
Correct |
2 ms |
336 KB |
Output is correct |
| 54 |
Correct |
3 ms |
348 KB |
Output is correct |
| 55 |
Correct |
3 ms |
336 KB |
Output is correct |
| 56 |
Correct |
2 ms |
336 KB |
Output is correct |
| 57 |
Correct |
2 ms |
336 KB |
Output is correct |
| 58 |
Correct |
2 ms |
336 KB |
Output is correct |
| 59 |
Correct |
2 ms |
336 KB |
Output is correct |
| 60 |
Correct |
4 ms |
336 KB |
Output is correct |
| 61 |
Correct |
405 ms |
13640 KB |
Output is correct |
| 62 |
Correct |
394 ms |
13532 KB |
Output is correct |
| 63 |
Correct |
397 ms |
12484 KB |
Output is correct |
| 64 |
Correct |
411 ms |
10896 KB |
Output is correct |
| 65 |
Correct |
435 ms |
12440 KB |
Output is correct |
| 66 |
Correct |
482 ms |
11848 KB |
Output is correct |
| 67 |
Correct |
405 ms |
12332 KB |
Output is correct |
| 68 |
Correct |
314 ms |
13396 KB |
Output is correct |
| 69 |
Correct |
294 ms |
10524 KB |
Output is correct |
| 70 |
Correct |
318 ms |
12340 KB |
Output is correct |
