#include<bits/stdc++.h>
#define all(s) s.begin(),s.end()
#define F first
#define S second
using namespace std;
typedef int ll;
ll n,a[5009],dp[509][509],p[5009],ans;
int main()
{
ios_base::sync_with_stdio(0);
cin.tie(0),cout.tie(0);
cin>>n;
for(ll i=1; i<=n; i++)
{
cin>>a[i];
p[i]=p[i-1]+a[i];
}
for(ll i=2; i<=n; i++)
{
for(ll j=i; j<=n; j++)
{
ll sum=0,l=i;
dp[i][j]=dp[i-1][i-1];
for(ll k=i-2; k; k--)
{
if(i==j)
{
dp[i][j]=max(dp[i][j],dp[k][i-1]);
continue;
}
while((p[l]-p[i-1]<p[i-1]-p[k])&&(l<j-1))
l++;
if(p[l]-p[i-1]==p[i-1]-p[k])
sum++;
dp[i][j]=max(dp[i][j],dp[k][i-1]+sum);
}
}
}
for(ll i=1; i<=n; i++)
ans=max(ans,dp[i][n]);
cout<<ans;
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
1 ms |
456 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
73 ms |
1284 KB |
Output is correct |
2 |
Correct |
77 ms |
1320 KB |
Output is correct |
3 |
Correct |
80 ms |
1196 KB |
Output is correct |
4 |
Correct |
74 ms |
1304 KB |
Output is correct |
5 |
Correct |
75 ms |
1256 KB |
Output is correct |
6 |
Correct |
73 ms |
1232 KB |
Output is correct |
7 |
Correct |
70 ms |
1192 KB |
Output is correct |
8 |
Correct |
74 ms |
1336 KB |
Output is correct |
9 |
Correct |
71 ms |
1308 KB |
Output is correct |
10 |
Correct |
72 ms |
1348 KB |
Output is correct |
11 |
Correct |
71 ms |
1296 KB |
Output is correct |
12 |
Correct |
70 ms |
1232 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
1 ms |
456 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
468 KB |
Output is correct |
21 |
Correct |
73 ms |
1284 KB |
Output is correct |
22 |
Correct |
77 ms |
1320 KB |
Output is correct |
23 |
Correct |
80 ms |
1196 KB |
Output is correct |
24 |
Correct |
74 ms |
1304 KB |
Output is correct |
25 |
Correct |
75 ms |
1256 KB |
Output is correct |
26 |
Correct |
73 ms |
1232 KB |
Output is correct |
27 |
Correct |
70 ms |
1192 KB |
Output is correct |
28 |
Correct |
74 ms |
1336 KB |
Output is correct |
29 |
Correct |
71 ms |
1308 KB |
Output is correct |
30 |
Correct |
72 ms |
1348 KB |
Output is correct |
31 |
Correct |
71 ms |
1296 KB |
Output is correct |
32 |
Correct |
70 ms |
1232 KB |
Output is correct |
33 |
Correct |
70 ms |
1264 KB |
Output is correct |
34 |
Correct |
72 ms |
1236 KB |
Output is correct |
35 |
Correct |
70 ms |
1244 KB |
Output is correct |
36 |
Correct |
73 ms |
1316 KB |
Output is correct |
37 |
Correct |
76 ms |
1308 KB |
Output is correct |
38 |
Correct |
71 ms |
1312 KB |
Output is correct |
39 |
Correct |
73 ms |
1364 KB |
Output is correct |
40 |
Correct |
71 ms |
1240 KB |
Output is correct |
41 |
Correct |
74 ms |
1316 KB |
Output is correct |
42 |
Correct |
72 ms |
1256 KB |
Output is correct |
43 |
Correct |
72 ms |
1224 KB |
Output is correct |
44 |
Correct |
71 ms |
1232 KB |
Output is correct |
45 |
Correct |
74 ms |
1452 KB |
Output is correct |
46 |
Correct |
70 ms |
1220 KB |
Output is correct |
47 |
Correct |
72 ms |
1272 KB |
Output is correct |
48 |
Correct |
73 ms |
1240 KB |
Output is correct |
49 |
Correct |
73 ms |
1240 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
340 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
0 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
0 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
0 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
1 ms |
456 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
1 ms |
468 KB |
Output is correct |
18 |
Correct |
1 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
468 KB |
Output is correct |
21 |
Correct |
73 ms |
1284 KB |
Output is correct |
22 |
Correct |
77 ms |
1320 KB |
Output is correct |
23 |
Correct |
80 ms |
1196 KB |
Output is correct |
24 |
Correct |
74 ms |
1304 KB |
Output is correct |
25 |
Correct |
75 ms |
1256 KB |
Output is correct |
26 |
Correct |
73 ms |
1232 KB |
Output is correct |
27 |
Correct |
70 ms |
1192 KB |
Output is correct |
28 |
Correct |
74 ms |
1336 KB |
Output is correct |
29 |
Correct |
71 ms |
1308 KB |
Output is correct |
30 |
Correct |
72 ms |
1348 KB |
Output is correct |
31 |
Correct |
71 ms |
1296 KB |
Output is correct |
32 |
Correct |
70 ms |
1232 KB |
Output is correct |
33 |
Correct |
70 ms |
1264 KB |
Output is correct |
34 |
Correct |
72 ms |
1236 KB |
Output is correct |
35 |
Correct |
70 ms |
1244 KB |
Output is correct |
36 |
Correct |
73 ms |
1316 KB |
Output is correct |
37 |
Correct |
76 ms |
1308 KB |
Output is correct |
38 |
Correct |
71 ms |
1312 KB |
Output is correct |
39 |
Correct |
73 ms |
1364 KB |
Output is correct |
40 |
Correct |
71 ms |
1240 KB |
Output is correct |
41 |
Correct |
74 ms |
1316 KB |
Output is correct |
42 |
Correct |
72 ms |
1256 KB |
Output is correct |
43 |
Correct |
72 ms |
1224 KB |
Output is correct |
44 |
Correct |
71 ms |
1232 KB |
Output is correct |
45 |
Correct |
74 ms |
1452 KB |
Output is correct |
46 |
Correct |
70 ms |
1220 KB |
Output is correct |
47 |
Correct |
72 ms |
1272 KB |
Output is correct |
48 |
Correct |
73 ms |
1240 KB |
Output is correct |
49 |
Correct |
73 ms |
1240 KB |
Output is correct |
50 |
Execution timed out |
1082 ms |
1220 KB |
Time limit exceeded |
51 |
Halted |
0 ms |
0 KB |
- |