#include <bits/stdc++.h>
using namespace std;
const int MAX=5005;
int N,S[MAX],mark[MAX][MAX],f[MAX][MAX],maxf[MAX][MAX];
int main() {
#ifdef ACM
freopen("input","r",stdin);
#endif
cin>>N;
for(int i=1;i<=N;i++) {
cin>>S[i];
S[i]+=S[i-1];
}
for(int i=1;i<=N;i++) {
int cur=i;
for(int j=i+1;j<=N;j++) {
while(cur>0&&S[i]-S[cur-1]<S[j]-S[i])
cur--;
if(cur>0&&S[i]-S[cur-1]==S[j]-S[i])
mark[i][j]=cur;
}
}
for(int i=0;i<N;i++) {
int cnt=0,maxVal=maxf[i][i-1];
for(int j=i+1;j<=N;j++) {
f[i][j]=maxVal;
if(mark[i][j]>1) {
cnt++;
maxVal=max(maxVal,maxf[i][mark[i][j]-2]+cnt);
}
}
for(int j=i+1;j<=N;j++)
maxf[j][i]=max(maxf[j][i-1],f[i][j]);
}
int rs=0;
for(int i=0;i<N;i++)
rs=max(rs,f[i][N]);
cout<<rs;
}
# |
결과 |
실행 시간 |
메모리 |
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 |
# |
결과 |
실행 시간 |
메모리 |
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 |
1320 KB |
Output is correct |
11 |
Correct |
1 ms |
1228 KB |
Output is correct |
12 |
Correct |
1 ms |
1228 KB |
Output is correct |
13 |
Correct |
1 ms |
1228 KB |
Output is correct |
14 |
Correct |
2 ms |
1256 KB |
Output is correct |
15 |
Correct |
1 ms |
1228 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1100 KB |
Output is correct |
18 |
Correct |
1 ms |
1100 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1100 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
7500 KB |
Output is correct |
2 |
Correct |
6 ms |
7456 KB |
Output is correct |
3 |
Correct |
6 ms |
7500 KB |
Output is correct |
4 |
Correct |
6 ms |
7488 KB |
Output is correct |
5 |
Correct |
8 ms |
7500 KB |
Output is correct |
6 |
Correct |
8 ms |
7468 KB |
Output is correct |
7 |
Correct |
6 ms |
7500 KB |
Output is correct |
8 |
Correct |
7 ms |
7500 KB |
Output is correct |
9 |
Correct |
6 ms |
7500 KB |
Output is correct |
10 |
Correct |
6 ms |
7500 KB |
Output is correct |
11 |
Correct |
7 ms |
7504 KB |
Output is correct |
12 |
Correct |
6 ms |
7500 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
1320 KB |
Output is correct |
11 |
Correct |
1 ms |
1228 KB |
Output is correct |
12 |
Correct |
1 ms |
1228 KB |
Output is correct |
13 |
Correct |
1 ms |
1228 KB |
Output is correct |
14 |
Correct |
2 ms |
1256 KB |
Output is correct |
15 |
Correct |
1 ms |
1228 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1100 KB |
Output is correct |
18 |
Correct |
1 ms |
1100 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1100 KB |
Output is correct |
21 |
Correct |
6 ms |
7500 KB |
Output is correct |
22 |
Correct |
6 ms |
7456 KB |
Output is correct |
23 |
Correct |
6 ms |
7500 KB |
Output is correct |
24 |
Correct |
6 ms |
7488 KB |
Output is correct |
25 |
Correct |
8 ms |
7500 KB |
Output is correct |
26 |
Correct |
8 ms |
7468 KB |
Output is correct |
27 |
Correct |
6 ms |
7500 KB |
Output is correct |
28 |
Correct |
7 ms |
7500 KB |
Output is correct |
29 |
Correct |
6 ms |
7500 KB |
Output is correct |
30 |
Correct |
6 ms |
7500 KB |
Output is correct |
31 |
Correct |
7 ms |
7504 KB |
Output is correct |
32 |
Correct |
6 ms |
7500 KB |
Output is correct |
33 |
Correct |
6 ms |
7500 KB |
Output is correct |
34 |
Correct |
6 ms |
7500 KB |
Output is correct |
35 |
Correct |
6 ms |
7500 KB |
Output is correct |
36 |
Correct |
6 ms |
7500 KB |
Output is correct |
37 |
Correct |
8 ms |
7500 KB |
Output is correct |
38 |
Correct |
7 ms |
7500 KB |
Output is correct |
39 |
Correct |
6 ms |
7468 KB |
Output is correct |
40 |
Correct |
6 ms |
5324 KB |
Output is correct |
41 |
Correct |
7 ms |
6284 KB |
Output is correct |
42 |
Correct |
6 ms |
6988 KB |
Output is correct |
43 |
Correct |
6 ms |
6476 KB |
Output is correct |
44 |
Correct |
6 ms |
5708 KB |
Output is correct |
45 |
Correct |
7 ms |
6604 KB |
Output is correct |
46 |
Correct |
6 ms |
6348 KB |
Output is correct |
47 |
Correct |
6 ms |
5964 KB |
Output is correct |
48 |
Correct |
5 ms |
6348 KB |
Output is correct |
49 |
Correct |
6 ms |
6604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
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 |
1320 KB |
Output is correct |
11 |
Correct |
1 ms |
1228 KB |
Output is correct |
12 |
Correct |
1 ms |
1228 KB |
Output is correct |
13 |
Correct |
1 ms |
1228 KB |
Output is correct |
14 |
Correct |
2 ms |
1256 KB |
Output is correct |
15 |
Correct |
1 ms |
1228 KB |
Output is correct |
16 |
Correct |
1 ms |
972 KB |
Output is correct |
17 |
Correct |
1 ms |
1100 KB |
Output is correct |
18 |
Correct |
1 ms |
1100 KB |
Output is correct |
19 |
Correct |
1 ms |
1100 KB |
Output is correct |
20 |
Correct |
2 ms |
1100 KB |
Output is correct |
21 |
Correct |
6 ms |
7500 KB |
Output is correct |
22 |
Correct |
6 ms |
7456 KB |
Output is correct |
23 |
Correct |
6 ms |
7500 KB |
Output is correct |
24 |
Correct |
6 ms |
7488 KB |
Output is correct |
25 |
Correct |
8 ms |
7500 KB |
Output is correct |
26 |
Correct |
8 ms |
7468 KB |
Output is correct |
27 |
Correct |
6 ms |
7500 KB |
Output is correct |
28 |
Correct |
7 ms |
7500 KB |
Output is correct |
29 |
Correct |
6 ms |
7500 KB |
Output is correct |
30 |
Correct |
6 ms |
7500 KB |
Output is correct |
31 |
Correct |
7 ms |
7504 KB |
Output is correct |
32 |
Correct |
6 ms |
7500 KB |
Output is correct |
33 |
Correct |
6 ms |
7500 KB |
Output is correct |
34 |
Correct |
6 ms |
7500 KB |
Output is correct |
35 |
Correct |
6 ms |
7500 KB |
Output is correct |
36 |
Correct |
6 ms |
7500 KB |
Output is correct |
37 |
Correct |
8 ms |
7500 KB |
Output is correct |
38 |
Correct |
7 ms |
7500 KB |
Output is correct |
39 |
Correct |
6 ms |
7468 KB |
Output is correct |
40 |
Correct |
6 ms |
5324 KB |
Output is correct |
41 |
Correct |
7 ms |
6284 KB |
Output is correct |
42 |
Correct |
6 ms |
6988 KB |
Output is correct |
43 |
Correct |
6 ms |
6476 KB |
Output is correct |
44 |
Correct |
6 ms |
5708 KB |
Output is correct |
45 |
Correct |
7 ms |
6604 KB |
Output is correct |
46 |
Correct |
6 ms |
6348 KB |
Output is correct |
47 |
Correct |
6 ms |
5964 KB |
Output is correct |
48 |
Correct |
5 ms |
6348 KB |
Output is correct |
49 |
Correct |
6 ms |
6604 KB |
Output is correct |
50 |
Correct |
292 ms |
178728 KB |
Output is correct |
51 |
Correct |
299 ms |
178760 KB |
Output is correct |
52 |
Correct |
268 ms |
178796 KB |
Output is correct |
53 |
Correct |
273 ms |
178884 KB |
Output is correct |
54 |
Correct |
276 ms |
178772 KB |
Output is correct |
55 |
Correct |
274 ms |
178844 KB |
Output is correct |
56 |
Correct |
339 ms |
178748 KB |
Output is correct |
57 |
Correct |
365 ms |
178800 KB |
Output is correct |
58 |
Correct |
330 ms |
178584 KB |
Output is correct |
59 |
Correct |
321 ms |
177608 KB |
Output is correct |
60 |
Correct |
341 ms |
142712 KB |
Output is correct |
61 |
Correct |
314 ms |
157788 KB |
Output is correct |
62 |
Correct |
328 ms |
157316 KB |
Output is correct |
63 |
Correct |
299 ms |
168072 KB |
Output is correct |
64 |
Correct |
293 ms |
167140 KB |
Output is correct |
65 |
Correct |
319 ms |
162740 KB |
Output is correct |
66 |
Correct |
313 ms |
161876 KB |
Output is correct |
67 |
Correct |
288 ms |
157716 KB |
Output is correct |
68 |
Correct |
298 ms |
155908 KB |
Output is correct |
69 |
Correct |
280 ms |
156436 KB |
Output is correct |
70 |
Correct |
306 ms |
159632 KB |
Output is correct |
71 |
Correct |
345 ms |
160836 KB |
Output is correct |
72 |
Correct |
299 ms |
170388 KB |
Output is correct |