oj.uz

Submission #175866

# Submission time Handle Problem Language Result Execution time Memory
175866 2020-01-07T11:38:09 Z mcdx9524 Bigger segments (IZhO19_segments) C++14
37 / 100
 1500 ms 3448 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());

int rand(int l, int r) {
    return uniform_int_distribution <int> (l, r) (rnd);
}

const int inf = 1e9 + 7;

void solve() {
    int n;
    cin >> n;
    vector <int> a(n + 1, 0);
    vector <ll> pref(n + 1, 0);
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        pref[i] = a[i] + pref[i - 1];
    }
    vector <pair <int, ll> > dp(n + 1, {0, inf});
    dp[0] = {0, 0};
    for (int i = 1; i <= n; i++) {
        for (int j = 0; j < i; j++) {
            ll sum = pref[i] - pref[j];
            if (sum >= dp[j].second) {
                if (dp[j].first + 1 > dp[i].first) {
                    dp[i].first = dp[j].first + 1;
                    dp[i].second = sum;
                } else if (dp[j].first + 1 == dp[i].first) {
                    dp[i].second = min(dp[i].second, sum);
                }
            }
        }
    }
    cout << dp[n].first << '\n';
}

int main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
#endif
    ios::sync_with_stdio(0);
    cin.tie(0);
    int test_cnt = 1;
    //cin >> test_cnt;
    while (test_cnt--) {
        solve();
    }
    return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 1 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 1 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 404 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 1 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 404 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 6 ms 532 KB Output is correct
32 Correct 14 ms 376 KB Output is correct
33 Correct 12 ms 504 KB Output is correct
34 Correct 9 ms 376 KB Output is correct
35 Correct 10 ms 504 KB Output is correct
36 Correct 14 ms 376 KB Output is correct
37 Correct 9 ms 504 KB Output is correct
38 Correct 7 ms 376 KB Output is correct
39 Correct 14 ms 504 KB Output is correct
40 Correct 14 ms 380 KB Output is correct
41 Correct 9 ms 376 KB Output is correct
42 Correct 9 ms 504 KB Output is correct
43 Correct 13 ms 376 KB Output is correct
44 Correct 15 ms 376 KB Output is correct
45 Correct 10 ms 376 KB Output is correct

Subtask #4
0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 1 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 404 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 6 ms 532 KB Output is correct
32 Correct 14 ms 376 KB Output is correct
33 Correct 12 ms 504 KB Output is correct
34 Correct 9 ms 376 KB Output is correct
35 Correct 10 ms 504 KB Output is correct
36 Correct 14 ms 376 KB Output is correct
37 Correct 9 ms 504 KB Output is correct
38 Correct 7 ms 376 KB Output is correct
39 Correct 14 ms 504 KB Output is correct
40 Correct 14 ms 380 KB Output is correct
41 Correct 9 ms 376 KB Output is correct
42 Correct 9 ms 504 KB Output is correct
43 Correct 13 ms 376 KB Output is correct
44 Correct 15 ms 376 KB Output is correct
45 Correct 10 ms 376 KB Output is correct
46 Execution timed out 1540 ms 3448 KB Time limit exceeded
47 Halted 0 ms 0 KB -

Subtask #5
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 1 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 376 KB Output is correct
15 Correct 2 ms 376 KB Output is correct
16 Correct 2 ms 380 KB Output is correct
17 Correct 2 ms 376 KB Output is correct
18 Correct 2 ms 376 KB Output is correct
19 Correct 2 ms 376 KB Output is correct
20 Correct 2 ms 376 KB Output is correct
21 Correct 2 ms 380 KB Output is correct
22 Correct 2 ms 404 KB Output is correct
23 Correct 2 ms 376 KB Output is correct
24 Correct 2 ms 376 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 376 KB Output is correct
27 Correct 2 ms 376 KB Output is correct
28 Correct 2 ms 376 KB Output is correct
29 Correct 2 ms 504 KB Output is correct
30 Correct 2 ms 376 KB Output is correct
31 Correct 6 ms 532 KB Output is correct
32 Correct 14 ms 376 KB Output is correct
33 Correct 12 ms 504 KB Output is correct
34 Correct 9 ms 376 KB Output is correct
35 Correct 10 ms 504 KB Output is correct
36 Correct 14 ms 376 KB Output is correct
37 Correct 9 ms 504 KB Output is correct
38 Correct 7 ms 376 KB Output is correct
39 Correct 14 ms 504 KB Output is correct
40 Correct 14 ms 380 KB Output is correct
41 Correct 9 ms 376 KB Output is correct
42 Correct 9 ms 504 KB Output is correct
43 Correct 13 ms 376 KB Output is correct
44 Correct 15 ms 376 KB Output is correct
45 Correct 10 ms 376 KB Output is correct
46 Execution timed out 1540 ms 3448 KB Time limit exceeded
47 Halted 0 ms 0 KB -