| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 420500 |
2021-06-08T12:04:31 Z |
Berted |
Cigle (COI21_cigle) |
C++14 |
|
490 ms |
165256 KB |
#include <iostream>
using namespace std;
int N, A[5001];
int cst[5001][5001], DP[5001][5001], pref[5001], suf[5001];
int main()
{
cin >> N;
for (int i = 0; i < N; i++) cin >> A[i];
for (int i = 0; i < N; i++)
{
int sumL = 0, sumR = 0, l = i - 1, r = i;
while (l >= 0 && r < N)
{
if (sumL + A[l] < sumR + A[r]) {sumL += A[l--];}
else {sumR += A[r++];}
if (l >= 0 && r < N && sumL == sumR) {cst[i][l] = 1; cst[i][r] = 1;}
}
for (int j = i + 1; j < N; j++) cst[i][j] = cst[i][j - 1] + cst[i][j];
for (int j = i - 2; j >= 0; j--) cst[i][j] = cst[i][j + 1] + cst[i][j];
}
for (int i = 0; i < N; i++)
{
if (i)
{
for (int j = 0; j < i; j++)
{
pref[j] = DP[j][i - 1];
if (j) pref[j] = max(pref[j - 1], pref[j]);
}
for (int j = i - 1; j >= 0; j--)
{
suf[j] = DP[j][i - 1] + cst[i][j];
if (j + 1 < i - 1) suf[j] = max(suf[j + 1], suf[j]);
}
}
int k = i - 1;
for (int j = i; j < N; j++)
{
while (k >= 0 && cst[i][k] <= cst[i][j]) {k--;}
if (k + 1 < i) DP[i][j] = suf[k + 1];
if (k >= 0) DP[i][j] = max(DP[i][j], pref[k] + cst[i][j]);
}
}
/*for (int i = 0; i < N; i++)
{
for (int j = i; j < N; j++)
{
cerr << DP[i][j] << " ";
}
cerr << "\n";
}*/
int res = 0;
for (int i = 0; i < N; i++) {res = max(res, DP[i][N - 1]);}
cout << res << "\n";
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
460 KB |
Output is correct |
| 2 |
Correct |
1 ms |
460 KB |
Output is correct |
| 3 |
Correct |
0 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
460 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
0 ms |
460 KB |
Output is correct |
| 7 |
Correct |
0 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
460 KB |
Output is correct |
| 2 |
Correct |
1 ms |
460 KB |
Output is correct |
| 3 |
Correct |
0 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
460 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
0 ms |
460 KB |
Output is correct |
| 7 |
Correct |
0 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
1 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
1 ms |
972 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
5708 KB |
Output is correct |
| 2 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 3 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 4 |
Correct |
5 ms |
5752 KB |
Output is correct |
| 5 |
Correct |
5 ms |
5788 KB |
Output is correct |
| 6 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 7 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 8 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 9 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 10 |
Correct |
6 ms |
5808 KB |
Output is correct |
| 11 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 12 |
Correct |
5 ms |
5708 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
460 KB |
Output is correct |
| 2 |
Correct |
1 ms |
460 KB |
Output is correct |
| 3 |
Correct |
0 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
460 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
0 ms |
460 KB |
Output is correct |
| 7 |
Correct |
0 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
1 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
1 ms |
972 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5708 KB |
Output is correct |
| 22 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 23 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5752 KB |
Output is correct |
| 25 |
Correct |
5 ms |
5788 KB |
Output is correct |
| 26 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 30 |
Correct |
6 ms |
5808 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 33 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 36 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 37 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 38 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 39 |
Correct |
7 ms |
5748 KB |
Output is correct |
| 40 |
Correct |
6 ms |
5776 KB |
Output is correct |
| 41 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 42 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 43 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 44 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 45 |
Correct |
6 ms |
5812 KB |
Output is correct |
| 46 |
Correct |
24 ms |
5700 KB |
Output is correct |
| 47 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 48 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 49 |
Correct |
6 ms |
5708 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
460 KB |
Output is correct |
| 2 |
Correct |
1 ms |
460 KB |
Output is correct |
| 3 |
Correct |
0 ms |
460 KB |
Output is correct |
| 4 |
Correct |
1 ms |
460 KB |
Output is correct |
| 5 |
Correct |
1 ms |
460 KB |
Output is correct |
| 6 |
Correct |
0 ms |
460 KB |
Output is correct |
| 7 |
Correct |
0 ms |
460 KB |
Output is correct |
| 8 |
Correct |
1 ms |
460 KB |
Output is correct |
| 9 |
Correct |
1 ms |
460 KB |
Output is correct |
| 10 |
Correct |
1 ms |
972 KB |
Output is correct |
| 11 |
Correct |
1 ms |
972 KB |
Output is correct |
| 12 |
Correct |
1 ms |
972 KB |
Output is correct |
| 13 |
Correct |
1 ms |
972 KB |
Output is correct |
| 14 |
Correct |
1 ms |
972 KB |
Output is correct |
| 15 |
Correct |
1 ms |
972 KB |
Output is correct |
| 16 |
Correct |
1 ms |
972 KB |
Output is correct |
| 17 |
Correct |
1 ms |
972 KB |
Output is correct |
| 18 |
Correct |
1 ms |
972 KB |
Output is correct |
| 19 |
Correct |
1 ms |
972 KB |
Output is correct |
| 20 |
Correct |
1 ms |
972 KB |
Output is correct |
| 21 |
Correct |
7 ms |
5708 KB |
Output is correct |
| 22 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 23 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 24 |
Correct |
5 ms |
5752 KB |
Output is correct |
| 25 |
Correct |
5 ms |
5788 KB |
Output is correct |
| 26 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 27 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 28 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 29 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 30 |
Correct |
6 ms |
5808 KB |
Output is correct |
| 31 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 32 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 33 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 34 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 35 |
Correct |
5 ms |
5708 KB |
Output is correct |
| 36 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 37 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 38 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 39 |
Correct |
7 ms |
5748 KB |
Output is correct |
| 40 |
Correct |
6 ms |
5776 KB |
Output is correct |
| 41 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 42 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 43 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 44 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 45 |
Correct |
6 ms |
5812 KB |
Output is correct |
| 46 |
Correct |
24 ms |
5700 KB |
Output is correct |
| 47 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 48 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 49 |
Correct |
6 ms |
5708 KB |
Output is correct |
| 50 |
Correct |
376 ms |
165048 KB |
Output is correct |
| 51 |
Correct |
376 ms |
165068 KB |
Output is correct |
| 52 |
Correct |
387 ms |
165148 KB |
Output is correct |
| 53 |
Correct |
369 ms |
165100 KB |
Output is correct |
| 54 |
Correct |
391 ms |
165176 KB |
Output is correct |
| 55 |
Correct |
381 ms |
165060 KB |
Output is correct |
| 56 |
Correct |
436 ms |
165256 KB |
Output is correct |
| 57 |
Correct |
449 ms |
165156 KB |
Output is correct |
| 58 |
Correct |
459 ms |
165132 KB |
Output is correct |
| 59 |
Correct |
431 ms |
165104 KB |
Output is correct |
| 60 |
Correct |
448 ms |
165096 KB |
Output is correct |
| 61 |
Correct |
460 ms |
165096 KB |
Output is correct |
| 62 |
Correct |
428 ms |
165128 KB |
Output is correct |
| 63 |
Correct |
391 ms |
165076 KB |
Output is correct |
| 64 |
Correct |
414 ms |
165088 KB |
Output is correct |
| 65 |
Correct |
423 ms |
165104 KB |
Output is correct |
| 66 |
Correct |
424 ms |
165064 KB |
Output is correct |
| 67 |
Correct |
394 ms |
165144 KB |
Output is correct |
| 68 |
Correct |
377 ms |
165084 KB |
Output is correct |
| 69 |
Correct |
384 ms |
165060 KB |
Output is correct |
| 70 |
Correct |
414 ms |
165100 KB |
Output is correct |
| 71 |
Correct |
490 ms |
165148 KB |
Output is correct |
| 72 |
Correct |
425 ms |
165056 KB |
Output is correct |
