#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n;
cin >> n;
vector<int> d(n);
for (int i = 0; i < n; ++i) {
cin >> d[i];
}
vector dp(n, vector<int>(n + 1)), pref(dp);
for (int i = 0; i < n; ++i) {
for (int j = 0; j < n; ++j) {
pref[i][j + 1] = max(pref[i][j], dp[i][j]);
}
// if (i == 7) {
// cout << "here!" << endl;
// }
int bal = 0, mx = 0, cnt = -1;
for (int k = i + 1, j = i; k < n; ++k) {
int add = 0;
if (bal == 0) {
add = 1;
cnt += 1;
}
bal += d[k];
while (j >= 0 && bal - d[j] >= 0) {
mx = max(mx, cnt + dp[i][j] - add * (j == i));
bal -= d[j--];
}
dp[k][i + 1] = mx;
if (j >= 0) {
dp[k][i + 1] = max(dp[k][i + 1], cnt + pref[i][j + 1]);
}
}
}
// cout << dp[7][2] << endl;
cout << *max_element(dp[n - 1].begin(), dp[n - 1].end()) << '\n';
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
600 KB |
Output is correct |
| 9 |
Correct |
0 ms |
456 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
600 KB |
Output is correct |
| 9 |
Correct |
0 ms |
456 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
600 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2452 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
600 KB |
Output is correct |
| 9 |
Correct |
0 ms |
456 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
600 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2452 KB |
Output is correct |
| 29 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 42 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 43 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 44 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 46 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 47 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 48 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 49 |
Correct |
2 ms |
2392 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 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 |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
600 KB |
Output is correct |
| 9 |
Correct |
0 ms |
456 KB |
Output is correct |
| 10 |
Correct |
1 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
600 KB |
Output is correct |
| 12 |
Correct |
0 ms |
348 KB |
Output is correct |
| 13 |
Correct |
0 ms |
348 KB |
Output is correct |
| 14 |
Correct |
0 ms |
348 KB |
Output is correct |
| 15 |
Correct |
0 ms |
348 KB |
Output is correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Correct |
0 ms |
348 KB |
Output is correct |
| 20 |
Correct |
0 ms |
348 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 23 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 24 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 25 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 27 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2452 KB |
Output is correct |
| 29 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 30 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 31 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 32 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 33 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 34 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 35 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 36 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 37 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 38 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 39 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 40 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 41 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 42 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 43 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 44 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 45 |
Correct |
3 ms |
2396 KB |
Output is correct |
| 46 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 47 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 48 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 49 |
Correct |
2 ms |
2392 KB |
Output is correct |
| 50 |
Correct |
154 ms |
196300 KB |
Output is correct |
| 51 |
Correct |
161 ms |
196364 KB |
Output is correct |
| 52 |
Correct |
155 ms |
196340 KB |
Output is correct |
| 53 |
Correct |
155 ms |
196432 KB |
Output is correct |
| 54 |
Correct |
155 ms |
196436 KB |
Output is correct |
| 55 |
Correct |
161 ms |
196524 KB |
Output is correct |
| 56 |
Correct |
163 ms |
196384 KB |
Output is correct |
| 57 |
Correct |
165 ms |
196384 KB |
Output is correct |
| 58 |
Correct |
179 ms |
196692 KB |
Output is correct |
| 59 |
Correct |
178 ms |
196440 KB |
Output is correct |
| 60 |
Correct |
176 ms |
196432 KB |
Output is correct |
| 61 |
Correct |
162 ms |
196408 KB |
Output is correct |
| 62 |
Correct |
162 ms |
196468 KB |
Output is correct |
| 63 |
Correct |
157 ms |
196436 KB |
Output is correct |
| 64 |
Correct |
156 ms |
196436 KB |
Output is correct |
| 65 |
Correct |
159 ms |
196432 KB |
Output is correct |
| 66 |
Correct |
169 ms |
196432 KB |
Output is correct |
| 67 |
Correct |
156 ms |
196536 KB |
Output is correct |
| 68 |
Correct |
155 ms |
196432 KB |
Output is correct |
| 69 |
Correct |
156 ms |
196532 KB |
Output is correct |
| 70 |
Correct |
180 ms |
196432 KB |
Output is correct |
| 71 |
Correct |
176 ms |
196388 KB |
Output is correct |
| 72 |
Correct |
170 ms |
196364 KB |
Output is correct |
