oj.uz

Submission #636091

# Submission time Handle Problem Language Result Execution time Memory
636091 2022-08-28T03:59:05 Z eecs Cigle (COI21_cigle) C++17
100 / 100
 297 ms 98672 KB 
#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(0), cin.tie(0);
    int n;
    cin >> n;
    vector<int> d(n);
    for (int &x : d) {
        cin >> x;
    }
    vector<vector<int>> f(n, vector<int>(n));
    for (int i = 0; i < n - 1; i++) {
        vector<int> num(n);
        int l = i, r = i + 1, s = 0, cnt = 0;
        while (~l || r < n) {
            if (r == n || s <= 0 && l >= 0) s += d[l--];
            else s -= d[r++];
            if (!s) cnt++;
            if (~l) num[l] = cnt;
            if (r < n) num[r] = cnt;
        }
        vector<int> pre(i + 1);
        for (int j = 0; j <= i; j++) {
            pre[j] = max(j ? pre[j - 1] : 0, f[j][i]);
        }
        for (int k = i + 1, j = i, t = 0; k < n; k++) {
            for (; ~j && num[j] <= num[k]; j--) {
                t = max(t, f[j][i] + num[j]);
            }
            f[i + 1][k] = max(t, ~j ? pre[j] + num[k] : 0);
        }
    }
    int ans = 0;
    for (int i = 0; i < n; i++) {
        ans = max(ans, f[i][n - 1]);
    }
    cout << ans << "\n";
    return 0;
}

Compilation message

cigle.cpp: In function 'int main()':
cigle.cpp:17:34: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   17 |             if (r == n || s <= 0 && l >= 0) s += d[l--];
      |                           ~~~~~~~^~~~~~~~~

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 0 ms 212 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1236 KB Output is correct
2 Correct 2 ms 1236 KB Output is correct
3 Correct 2 ms 1344 KB Output is correct
4 Correct 3 ms 1364 KB Output is correct
5 Correct 2 ms 1236 KB Output is correct
6 Correct 3 ms 1344 KB Output is correct
7 Correct 2 ms 1236 KB Output is correct
8 Correct 3 ms 1236 KB Output is correct
9 Correct 2 ms 1236 KB Output is correct
10 Correct 2 ms 1348 KB Output is correct
11 Correct 2 ms 1236 KB Output is correct
12 Correct 2 ms 1236 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 2 ms 1236 KB Output is correct
22 Correct 2 ms 1236 KB Output is correct
23 Correct 2 ms 1344 KB Output is correct
24 Correct 3 ms 1364 KB Output is correct
25 Correct 2 ms 1236 KB Output is correct
26 Correct 3 ms 1344 KB Output is correct
27 Correct 2 ms 1236 KB Output is correct
28 Correct 3 ms 1236 KB Output is correct
29 Correct 2 ms 1236 KB Output is correct
30 Correct 2 ms 1348 KB Output is correct
31 Correct 2 ms 1236 KB Output is correct
32 Correct 2 ms 1236 KB Output is correct
33 Correct 2 ms 1344 KB Output is correct
34 Correct 2 ms 1236 KB Output is correct
35 Correct 2 ms 1236 KB Output is correct
36 Correct 2 ms 1236 KB Output is correct
37 Correct 2 ms 1236 KB Output is correct
38 Correct 3 ms 1340 KB Output is correct
39 Correct 2 ms 1236 KB Output is correct
40 Correct 3 ms 1364 KB Output is correct
41 Correct 2 ms 1236 KB Output is correct
42 Correct 2 ms 1236 KB Output is correct
43 Correct 2 ms 1348 KB Output is correct
44 Correct 2 ms 1344 KB Output is correct
45 Correct 2 ms 1236 KB Output is correct
46 Correct 2 ms 1236 KB Output is correct
47 Correct 2 ms 1236 KB Output is correct
48 Correct 2 ms 1236 KB Output is correct
49 Correct 2 ms 1236 KB Output is correct

Subtask #5
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 316 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 0 ms 340 KB Output is correct
17 Correct 1 ms 320 KB Output is correct
18 Correct 0 ms 340 KB Output is correct
19 Correct 0 ms 324 KB Output is correct
20 Correct 0 ms 340 KB Output is correct
21 Correct 2 ms 1236 KB Output is correct
22 Correct 2 ms 1236 KB Output is correct
23 Correct 2 ms 1344 KB Output is correct
24 Correct 3 ms 1364 KB Output is correct
25 Correct 2 ms 1236 KB Output is correct
26 Correct 3 ms 1344 KB Output is correct
27 Correct 2 ms 1236 KB Output is correct
28 Correct 3 ms 1236 KB Output is correct
29 Correct 2 ms 1236 KB Output is correct
30 Correct 2 ms 1348 KB Output is correct
31 Correct 2 ms 1236 KB Output is correct
32 Correct 2 ms 1236 KB Output is correct
33 Correct 2 ms 1344 KB Output is correct
34 Correct 2 ms 1236 KB Output is correct
35 Correct 2 ms 1236 KB Output is correct
36 Correct 2 ms 1236 KB Output is correct
37 Correct 2 ms 1236 KB Output is correct
38 Correct 3 ms 1340 KB Output is correct
39 Correct 2 ms 1236 KB Output is correct
40 Correct 3 ms 1364 KB Output is correct
41 Correct 2 ms 1236 KB Output is correct
42 Correct 2 ms 1236 KB Output is correct
43 Correct 2 ms 1348 KB Output is correct
44 Correct 2 ms 1344 KB Output is correct
45 Correct 2 ms 1236 KB Output is correct
46 Correct 2 ms 1236 KB Output is correct
47 Correct 2 ms 1236 KB Output is correct
48 Correct 2 ms 1236 KB Output is correct
49 Correct 2 ms 1236 KB Output is correct
50 Correct 221 ms 98536 KB Output is correct
51 Correct 237 ms 98440 KB Output is correct
52 Correct 221 ms 98508 KB Output is correct
53 Correct 213 ms 98672 KB Output is correct
54 Correct 223 ms 98440 KB Output is correct
55 Correct 212 ms 98636 KB Output is correct
56 Correct 260 ms 98424 KB Output is correct
57 Correct 250 ms 98436 KB Output is correct
58 Correct 297 ms 98432 KB Output is correct
59 Correct 266 ms 98452 KB Output is correct
60 Correct 254 ms 98456 KB Output is correct
61 Correct 270 ms 98536 KB Output is correct
62 Correct 231 ms 98444 KB Output is correct
63 Correct 234 ms 98572 KB Output is correct
64 Correct 240 ms 98456 KB Output is correct
65 Correct 241 ms 98572 KB Output is correct
66 Correct 238 ms 98392 KB Output is correct
67 Correct 219 ms 98380 KB Output is correct
68 Correct 226 ms 98456 KB Output is correct
69 Correct 227 ms 98460 KB Output is correct
70 Correct 248 ms 98496 KB Output is correct
71 Correct 261 ms 98536 KB Output is correct
72 Correct 240 ms 98440 KB Output is correct