#include <bits/stdc++.h>
using namespace std;
#define bug(x) cout << #x << " " << x << endl;
const int maxn = 5e3 + 10;
const int maxm = 1e7;
int dp[maxn][maxn], v[maxn], suf[maxn];
int main(){
int n; cin >> n;
for( int i = 1; i <= n; i++ ) cin >> v[i];
int resp = 0;
for( int j = n - 1; j >= 1; j-- ){
// bug(j);
// for( int k = 0; k <= n; k++ ) cout << dp[j][k] << " "; cout << endl;
for( int k = n; k > j; k-- ) suf[k] = max( dp[j][k], suf[k + 1] );
int k = j + 1, cont = 0;
int sumL = 0, sumR = v[k];
int pref = dp[j][k];
for( int i = j - 1; i >= 0; i-- ){
// bug(i);
// bug(sumL);
while( k < n && sumR <= sumL ){
if( sumL == sumR ) cont++;
sumR += v[++k];
pref = max( pref, dp[j][k] + cont );
}
// bug(k) ;
// bug(sumR);
// bug(cont);
dp[i][j] = max( pref, suf[k + 1] + cont );
resp = max( resp, dp[i][j] );
sumL += v[i + 1];
}
}
cout << resp << endl;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
444 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
444 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
700 KB |
Output is correct |
18 |
Correct |
0 ms |
604 KB |
Output is correct |
19 |
Correct |
0 ms |
696 KB |
Output is correct |
20 |
Correct |
0 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
2908 KB |
Output is correct |
2 |
Correct |
1 ms |
2908 KB |
Output is correct |
3 |
Correct |
1 ms |
2908 KB |
Output is correct |
4 |
Correct |
2 ms |
2908 KB |
Output is correct |
5 |
Correct |
2 ms |
2908 KB |
Output is correct |
6 |
Correct |
1 ms |
2908 KB |
Output is correct |
7 |
Correct |
2 ms |
2908 KB |
Output is correct |
8 |
Correct |
2 ms |
2908 KB |
Output is correct |
9 |
Correct |
2 ms |
2908 KB |
Output is correct |
10 |
Correct |
1 ms |
2908 KB |
Output is correct |
11 |
Correct |
2 ms |
2908 KB |
Output is correct |
12 |
Correct |
2 ms |
2904 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
444 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
700 KB |
Output is correct |
18 |
Correct |
0 ms |
604 KB |
Output is correct |
19 |
Correct |
0 ms |
696 KB |
Output is correct |
20 |
Correct |
0 ms |
604 KB |
Output is correct |
21 |
Correct |
2 ms |
2908 KB |
Output is correct |
22 |
Correct |
1 ms |
2908 KB |
Output is correct |
23 |
Correct |
1 ms |
2908 KB |
Output is correct |
24 |
Correct |
2 ms |
2908 KB |
Output is correct |
25 |
Correct |
2 ms |
2908 KB |
Output is correct |
26 |
Correct |
1 ms |
2908 KB |
Output is correct |
27 |
Correct |
2 ms |
2908 KB |
Output is correct |
28 |
Correct |
2 ms |
2908 KB |
Output is correct |
29 |
Correct |
2 ms |
2908 KB |
Output is correct |
30 |
Correct |
1 ms |
2908 KB |
Output is correct |
31 |
Correct |
2 ms |
2908 KB |
Output is correct |
32 |
Correct |
2 ms |
2904 KB |
Output is correct |
33 |
Correct |
2 ms |
2908 KB |
Output is correct |
34 |
Correct |
1 ms |
2908 KB |
Output is correct |
35 |
Correct |
1 ms |
2908 KB |
Output is correct |
36 |
Correct |
1 ms |
2908 KB |
Output is correct |
37 |
Correct |
1 ms |
2908 KB |
Output is correct |
38 |
Correct |
1 ms |
2908 KB |
Output is correct |
39 |
Correct |
1 ms |
2908 KB |
Output is correct |
40 |
Correct |
2 ms |
2908 KB |
Output is correct |
41 |
Correct |
1 ms |
2908 KB |
Output is correct |
42 |
Correct |
1 ms |
2908 KB |
Output is correct |
43 |
Correct |
1 ms |
2908 KB |
Output is correct |
44 |
Correct |
2 ms |
2908 KB |
Output is correct |
45 |
Correct |
2 ms |
2908 KB |
Output is correct |
46 |
Correct |
2 ms |
2908 KB |
Output is correct |
47 |
Correct |
2 ms |
2904 KB |
Output is correct |
48 |
Correct |
2 ms |
2908 KB |
Output is correct |
49 |
Correct |
2 ms |
2744 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
444 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
604 KB |
Output is correct |
11 |
Correct |
0 ms |
604 KB |
Output is correct |
12 |
Correct |
0 ms |
604 KB |
Output is correct |
13 |
Correct |
0 ms |
604 KB |
Output is correct |
14 |
Correct |
1 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
604 KB |
Output is correct |
16 |
Correct |
1 ms |
604 KB |
Output is correct |
17 |
Correct |
0 ms |
700 KB |
Output is correct |
18 |
Correct |
0 ms |
604 KB |
Output is correct |
19 |
Correct |
0 ms |
696 KB |
Output is correct |
20 |
Correct |
0 ms |
604 KB |
Output is correct |
21 |
Correct |
2 ms |
2908 KB |
Output is correct |
22 |
Correct |
1 ms |
2908 KB |
Output is correct |
23 |
Correct |
1 ms |
2908 KB |
Output is correct |
24 |
Correct |
2 ms |
2908 KB |
Output is correct |
25 |
Correct |
2 ms |
2908 KB |
Output is correct |
26 |
Correct |
1 ms |
2908 KB |
Output is correct |
27 |
Correct |
2 ms |
2908 KB |
Output is correct |
28 |
Correct |
2 ms |
2908 KB |
Output is correct |
29 |
Correct |
2 ms |
2908 KB |
Output is correct |
30 |
Correct |
1 ms |
2908 KB |
Output is correct |
31 |
Correct |
2 ms |
2908 KB |
Output is correct |
32 |
Correct |
2 ms |
2904 KB |
Output is correct |
33 |
Correct |
2 ms |
2908 KB |
Output is correct |
34 |
Correct |
1 ms |
2908 KB |
Output is correct |
35 |
Correct |
1 ms |
2908 KB |
Output is correct |
36 |
Correct |
1 ms |
2908 KB |
Output is correct |
37 |
Correct |
1 ms |
2908 KB |
Output is correct |
38 |
Correct |
1 ms |
2908 KB |
Output is correct |
39 |
Correct |
1 ms |
2908 KB |
Output is correct |
40 |
Correct |
2 ms |
2908 KB |
Output is correct |
41 |
Correct |
1 ms |
2908 KB |
Output is correct |
42 |
Correct |
1 ms |
2908 KB |
Output is correct |
43 |
Correct |
1 ms |
2908 KB |
Output is correct |
44 |
Correct |
2 ms |
2908 KB |
Output is correct |
45 |
Correct |
2 ms |
2908 KB |
Output is correct |
46 |
Correct |
2 ms |
2908 KB |
Output is correct |
47 |
Correct |
2 ms |
2904 KB |
Output is correct |
48 |
Correct |
2 ms |
2908 KB |
Output is correct |
49 |
Correct |
2 ms |
2744 KB |
Output is correct |
50 |
Correct |
84 ms |
67408 KB |
Output is correct |
51 |
Correct |
78 ms |
67408 KB |
Output is correct |
52 |
Correct |
79 ms |
67412 KB |
Output is correct |
53 |
Correct |
91 ms |
67436 KB |
Output is correct |
54 |
Correct |
77 ms |
67408 KB |
Output is correct |
55 |
Correct |
82 ms |
67412 KB |
Output is correct |
56 |
Correct |
96 ms |
67412 KB |
Output is correct |
57 |
Correct |
95 ms |
67408 KB |
Output is correct |
58 |
Correct |
96 ms |
67408 KB |
Output is correct |
59 |
Correct |
104 ms |
67424 KB |
Output is correct |
60 |
Correct |
106 ms |
67348 KB |
Output is correct |
61 |
Correct |
98 ms |
67408 KB |
Output is correct |
62 |
Correct |
111 ms |
67408 KB |
Output is correct |
63 |
Correct |
85 ms |
67408 KB |
Output is correct |
64 |
Correct |
90 ms |
67412 KB |
Output is correct |
65 |
Correct |
87 ms |
67412 KB |
Output is correct |
66 |
Correct |
89 ms |
67412 KB |
Output is correct |
67 |
Correct |
88 ms |
67412 KB |
Output is correct |
68 |
Correct |
87 ms |
67408 KB |
Output is correct |
69 |
Correct |
90 ms |
67296 KB |
Output is correct |
70 |
Correct |
110 ms |
67216 KB |
Output is correct |
71 |
Correct |
104 ms |
67292 KB |
Output is correct |
72 |
Correct |
98 ms |
67412 KB |
Output is correct |