# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
1035549 |
2024-07-26T11:49:50 Z |
tvladm2009 |
Cigle (COI21_cigle) |
C++17 |
|
3 ms |
3420 KB |
#include <bits/stdc++.h>
using namespace std;
#define x first
#define y second
#define sz(a) a.size()
typedef long long ll;
const int N = 5e3 + 7;
int a[N];
ll dp[N][N], mx[N];
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
int n;
cin >> n;
for (int i = 0; i < n; i++)
cin >> a[i];
for (int i = 1; i <= n; ++i) {
for (int j = 1; j <= i - 1; ++j) {
mx[j] = dp[j][i - 1];
}
for (int j = 1; j <= i - 1; ++j) {
mx[j] = max(mx[j], mx[j - 1]);
}
ll sa = 0;
ll sb = 0;
ll x = 0;
int cnt = 0;
int pos = i - 1;
for (int j = i; j <= n; ++j) {
sb += a[j];
while (pos >= 1 && sa < sb) {
sa += a[pos];
pos--;
}
if (pos > 0 && sa == sb) {
cnt++;
x = max(x, mx[pos] + cnt);
}
dp[i][j + 1] = x;
}
}
ll ans = 0;
for (int i = 1; i <= n; i++)
ans = max(ans, dp[i][n]);
cout << ans << "\n";
return 0;
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
3416 KB |
Output is correct |
2 |
Correct |
2 ms |
3416 KB |
Output is correct |
3 |
Incorrect |
2 ms |
3420 KB |
Output isn't correct |
4 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
348 KB |
Output is correct |
2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |