Submission #420488

# Submission time Handle Problem Language Result Execution time Memory
420488 2021-06-08T11:48:27 Z Berted Cigle (COI21_cigle) C++14
48 / 100
1000 ms 108120 KB
#include <iostream>

using namespace std;

int N, A[5001];
int cst[5001][5001], DP[5001][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++)
	{
		for (int j = 0; j <= i; j++) 
		{
			//cerr << i << " " << j << " DP\n";
			for (int k = j - 1; k >= 0; k--) 
			{
				DP[i][j] = max(DP[i][j], DP[j - 1][k] + min(cst[j][i], cst[j][k]));
				//cerr << j - 1 << " " << k << " " << DP[j - 1][k] << " " << min(cst[j][i], cst[j][k]) << "\n";
			}
			//cerr << "DPF: " << i << " " << j << " " << DP[i][j] << "\n";
		}
	}
	int res = 0;
	for (int i = 0; i < N; i++) {res = max(res, DP[N - 1][i]);}

	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 1 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 1 ms 460 KB Output is correct
7 Correct 1 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 1 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 1 ms 460 KB Output is correct
7 Correct 1 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 2 ms 972 KB Output is correct
20 Correct 1 ms 928 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 38 ms 5696 KB Output is correct
2 Correct 38 ms 5696 KB Output is correct
3 Correct 38 ms 5744 KB Output is correct
4 Correct 39 ms 5728 KB Output is correct
5 Correct 40 ms 5700 KB Output is correct
6 Correct 40 ms 5760 KB Output is correct
7 Correct 39 ms 5740 KB Output is correct
8 Correct 44 ms 5704 KB Output is correct
9 Correct 40 ms 5704 KB Output is correct
10 Correct 39 ms 5760 KB Output is correct
11 Correct 43 ms 5772 KB Output is correct
12 Correct 39 ms 5732 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 1 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 1 ms 460 KB Output is correct
7 Correct 1 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 2 ms 972 KB Output is correct
20 Correct 1 ms 928 KB Output is correct
21 Correct 38 ms 5696 KB Output is correct
22 Correct 38 ms 5696 KB Output is correct
23 Correct 38 ms 5744 KB Output is correct
24 Correct 39 ms 5728 KB Output is correct
25 Correct 40 ms 5700 KB Output is correct
26 Correct 40 ms 5760 KB Output is correct
27 Correct 39 ms 5740 KB Output is correct
28 Correct 44 ms 5704 KB Output is correct
29 Correct 40 ms 5704 KB Output is correct
30 Correct 39 ms 5760 KB Output is correct
31 Correct 43 ms 5772 KB Output is correct
32 Correct 39 ms 5732 KB Output is correct
33 Correct 41 ms 5776 KB Output is correct
34 Correct 40 ms 5800 KB Output is correct
35 Correct 54 ms 5788 KB Output is correct
36 Correct 41 ms 5792 KB Output is correct
37 Correct 40 ms 5680 KB Output is correct
38 Correct 39 ms 5752 KB Output is correct
39 Correct 39 ms 5712 KB Output is correct
40 Correct 41 ms 5720 KB Output is correct
41 Correct 50 ms 5756 KB Output is correct
42 Correct 40 ms 5764 KB Output is correct
43 Correct 41 ms 5700 KB Output is correct
44 Correct 41 ms 5792 KB Output is correct
45 Correct 39 ms 5724 KB Output is correct
46 Correct 40 ms 5700 KB Output is correct
47 Correct 43 ms 5664 KB Output is correct
48 Correct 38 ms 5732 KB Output is correct
49 Correct 39 ms 5780 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 1 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 1 ms 460 KB Output is correct
7 Correct 1 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 2 ms 972 KB Output is correct
20 Correct 1 ms 928 KB Output is correct
21 Correct 38 ms 5696 KB Output is correct
22 Correct 38 ms 5696 KB Output is correct
23 Correct 38 ms 5744 KB Output is correct
24 Correct 39 ms 5728 KB Output is correct
25 Correct 40 ms 5700 KB Output is correct
26 Correct 40 ms 5760 KB Output is correct
27 Correct 39 ms 5740 KB Output is correct
28 Correct 44 ms 5704 KB Output is correct
29 Correct 40 ms 5704 KB Output is correct
30 Correct 39 ms 5760 KB Output is correct
31 Correct 43 ms 5772 KB Output is correct
32 Correct 39 ms 5732 KB Output is correct
33 Correct 41 ms 5776 KB Output is correct
34 Correct 40 ms 5800 KB Output is correct
35 Correct 54 ms 5788 KB Output is correct
36 Correct 41 ms 5792 KB Output is correct
37 Correct 40 ms 5680 KB Output is correct
38 Correct 39 ms 5752 KB Output is correct
39 Correct 39 ms 5712 KB Output is correct
40 Correct 41 ms 5720 KB Output is correct
41 Correct 50 ms 5756 KB Output is correct
42 Correct 40 ms 5764 KB Output is correct
43 Correct 41 ms 5700 KB Output is correct
44 Correct 41 ms 5792 KB Output is correct
45 Correct 39 ms 5724 KB Output is correct
46 Correct 40 ms 5700 KB Output is correct
47 Correct 43 ms 5664 KB Output is correct
48 Correct 38 ms 5732 KB Output is correct
49 Correct 39 ms 5780 KB Output is correct
50 Execution timed out 1055 ms 108120 KB Time limit exceeded
51 Halted 0 ms 0 KB -