#include "bits/stdc++.h"
#define int long long
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
using namespace std;
void _(){
int n; cin >> n;
int ar[n+5];
for(int i=1;i<=n;i++) cin >> ar[i];
int pre[n+5][n+5],dp[n+5][n+5];
memset(dp,0,sizeof(dp));
memset(pre,0,sizeof(pre));
for(int i = 1; i <= n; i++){
int p = i, cur = 0, cost = 0, _p = i - 1, cur2 = 0;
vector<int> suf(n+5,0);
while(p <= n){
while(_p > 1 && cur2 < cur) cur2 += ar[_p--];
if(cur > 0 && cur == cur2) cost++;
cur += ar[p];
// cout << i << ' ' << p << ' ' << cost << '\n';
dp[i][p] = max(dp[i][p], pre[_p][i-1] + cost);
suf[p] = max(pre[_p][i-1] + cost, suf[p]);
p++;
}
for(int j = i; j <= n; j++) suf[j] = max(suf[j - 1], suf[j]);
for(int j = i; j <= n; j++) dp[i][j] = max(dp[i][j], suf[j]);
for(int j = 1; j <= i; j++) pre[j][i] = max(pre[j-1][i], dp[j][i]);
}
int ans = 0;
for(int i=1;i<=n;i++) ans = max(ans, dp[i][n]);
cout << ans << '\n';
}
int32_t main(){
cin.tie(0); ios::sync_with_stdio(0);
int tc=1;//cin >> tc;
while(tc--) _();
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
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 |
504 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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
504 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
4432 KB |
Output is correct |
2 |
Correct |
5 ms |
4432 KB |
Output is correct |
3 |
Correct |
5 ms |
4432 KB |
Output is correct |
4 |
Correct |
5 ms |
4432 KB |
Output is correct |
5 |
Correct |
5 ms |
4424 KB |
Output is correct |
6 |
Correct |
5 ms |
4432 KB |
Output is correct |
7 |
Correct |
6 ms |
4432 KB |
Output is correct |
8 |
Correct |
6 ms |
4600 KB |
Output is correct |
9 |
Correct |
5 ms |
4432 KB |
Output is correct |
10 |
Correct |
5 ms |
4432 KB |
Output is correct |
11 |
Correct |
6 ms |
4432 KB |
Output is correct |
12 |
Correct |
6 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
504 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 |
5 ms |
4432 KB |
Output is correct |
22 |
Correct |
5 ms |
4432 KB |
Output is correct |
23 |
Correct |
5 ms |
4432 KB |
Output is correct |
24 |
Correct |
5 ms |
4432 KB |
Output is correct |
25 |
Correct |
5 ms |
4424 KB |
Output is correct |
26 |
Correct |
5 ms |
4432 KB |
Output is correct |
27 |
Correct |
6 ms |
4432 KB |
Output is correct |
28 |
Correct |
6 ms |
4600 KB |
Output is correct |
29 |
Correct |
5 ms |
4432 KB |
Output is correct |
30 |
Correct |
5 ms |
4432 KB |
Output is correct |
31 |
Correct |
6 ms |
4432 KB |
Output is correct |
32 |
Correct |
6 ms |
4432 KB |
Output is correct |
33 |
Correct |
5 ms |
4432 KB |
Output is correct |
34 |
Correct |
5 ms |
4432 KB |
Output is correct |
35 |
Correct |
6 ms |
4432 KB |
Output is correct |
36 |
Correct |
5 ms |
4600 KB |
Output is correct |
37 |
Correct |
7 ms |
4432 KB |
Output is correct |
38 |
Correct |
5 ms |
4432 KB |
Output is correct |
39 |
Correct |
6 ms |
4432 KB |
Output is correct |
40 |
Correct |
6 ms |
4428 KB |
Output is correct |
41 |
Correct |
5 ms |
4432 KB |
Output is correct |
42 |
Correct |
5 ms |
4432 KB |
Output is correct |
43 |
Correct |
6 ms |
4432 KB |
Output is correct |
44 |
Correct |
6 ms |
4432 KB |
Output is correct |
45 |
Correct |
5 ms |
4432 KB |
Output is correct |
46 |
Correct |
6 ms |
4240 KB |
Output is correct |
47 |
Correct |
6 ms |
4432 KB |
Output is correct |
48 |
Correct |
5 ms |
4432 KB |
Output is correct |
49 |
Correct |
6 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
504 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 |
5 ms |
4432 KB |
Output is correct |
22 |
Correct |
5 ms |
4432 KB |
Output is correct |
23 |
Correct |
5 ms |
4432 KB |
Output is correct |
24 |
Correct |
5 ms |
4432 KB |
Output is correct |
25 |
Correct |
5 ms |
4424 KB |
Output is correct |
26 |
Correct |
5 ms |
4432 KB |
Output is correct |
27 |
Correct |
6 ms |
4432 KB |
Output is correct |
28 |
Correct |
6 ms |
4600 KB |
Output is correct |
29 |
Correct |
5 ms |
4432 KB |
Output is correct |
30 |
Correct |
5 ms |
4432 KB |
Output is correct |
31 |
Correct |
6 ms |
4432 KB |
Output is correct |
32 |
Correct |
6 ms |
4432 KB |
Output is correct |
33 |
Correct |
5 ms |
4432 KB |
Output is correct |
34 |
Correct |
5 ms |
4432 KB |
Output is correct |
35 |
Correct |
6 ms |
4432 KB |
Output is correct |
36 |
Correct |
5 ms |
4600 KB |
Output is correct |
37 |
Correct |
7 ms |
4432 KB |
Output is correct |
38 |
Correct |
5 ms |
4432 KB |
Output is correct |
39 |
Correct |
6 ms |
4432 KB |
Output is correct |
40 |
Correct |
6 ms |
4428 KB |
Output is correct |
41 |
Correct |
5 ms |
4432 KB |
Output is correct |
42 |
Correct |
5 ms |
4432 KB |
Output is correct |
43 |
Correct |
6 ms |
4432 KB |
Output is correct |
44 |
Correct |
6 ms |
4432 KB |
Output is correct |
45 |
Correct |
5 ms |
4432 KB |
Output is correct |
46 |
Correct |
6 ms |
4240 KB |
Output is correct |
47 |
Correct |
6 ms |
4432 KB |
Output is correct |
48 |
Correct |
5 ms |
4432 KB |
Output is correct |
49 |
Correct |
6 ms |
4432 KB |
Output is correct |
50 |
Correct |
506 ms |
392588 KB |
Output is correct |
51 |
Correct |
509 ms |
392524 KB |
Output is correct |
52 |
Correct |
493 ms |
392564 KB |
Output is correct |
53 |
Correct |
483 ms |
392520 KB |
Output is correct |
54 |
Correct |
474 ms |
392652 KB |
Output is correct |
55 |
Correct |
472 ms |
392520 KB |
Output is correct |
56 |
Correct |
547 ms |
392472 KB |
Output is correct |
57 |
Correct |
531 ms |
392508 KB |
Output is correct |
58 |
Correct |
528 ms |
392644 KB |
Output is correct |
59 |
Correct |
498 ms |
392600 KB |
Output is correct |
60 |
Correct |
535 ms |
392464 KB |
Output is correct |
61 |
Correct |
522 ms |
392564 KB |
Output is correct |
62 |
Correct |
511 ms |
392520 KB |
Output is correct |
63 |
Correct |
520 ms |
392520 KB |
Output is correct |
64 |
Correct |
533 ms |
392644 KB |
Output is correct |
65 |
Correct |
527 ms |
392520 KB |
Output is correct |
66 |
Correct |
518 ms |
392520 KB |
Output is correct |
67 |
Correct |
536 ms |
392520 KB |
Output is correct |
68 |
Correct |
541 ms |
392520 KB |
Output is correct |
69 |
Correct |
507 ms |
392520 KB |
Output is correct |
70 |
Correct |
529 ms |
392520 KB |
Output is correct |
71 |
Correct |
547 ms |
392520 KB |
Output is correct |
72 |
Correct |
524 ms |
392776 KB |
Output is correct |