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Submission #207109

# Submission time Handle Problem Language Result Execution time Memory
207109 2020-03-06T13:46:53 Z edsa Bigger segments (IZhO19_segments) C++14
100 / 100
 112 ms 19424 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
using vll = vector<ll>;
using vii = vector<ii>;
const ll MOD = 998244353;
const int INF = 1e9+9;
const int MAXN = 1000006;

int n, a[MAXN];
ll s[MAXN];
using lii = pair<ll, ii>;
vector<lii> myStack;

int main () {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> a[i];
        s[i+1] = s[i]+a[i];
    }

    myStack.emplace_back(0, ii(0, 0));
    for (int i = 1; i <= n; i++) {
        ii maxi = (--upper_bound(myStack.begin(), myStack.end(), lii(s[i], ii(INF, INF))))->second;
        // }
        ll key = 2*s[i]-s[maxi.second];
        while (myStack.back().first >= key)
            myStack.pop_back();
        myStack.emplace_back(key, ii(maxi.first+1, i));
    }
    cout << myStack.back().second.first << endl;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 252 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 248 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 252 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 248 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 504 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 380 KB Output is correct
30 Correct 5 ms 376 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 252 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 248 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 504 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 380 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 504 KB Output is correct
32 Correct 6 ms 504 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 6 ms 504 KB Output is correct
35 Correct 6 ms 504 KB Output is correct
36 Correct 5 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 504 KB Output is correct
40 Correct 5 ms 504 KB Output is correct
41 Correct 5 ms 504 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 5 ms 504 KB Output is correct
44 Correct 5 ms 504 KB Output is correct
45 Correct 6 ms 504 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 252 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 248 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 504 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 380 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 504 KB Output is correct
32 Correct 6 ms 504 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 6 ms 504 KB Output is correct
35 Correct 6 ms 504 KB Output is correct
36 Correct 5 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 504 KB Output is correct
40 Correct 5 ms 504 KB Output is correct
41 Correct 5 ms 504 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 5 ms 504 KB Output is correct
44 Correct 5 ms 504 KB Output is correct
45 Correct 6 ms 504 KB Output is correct
46 Correct 20 ms 4208 KB Output is correct
47 Correct 19 ms 4208 KB Output is correct
48 Correct 21 ms 2552 KB Output is correct
49 Correct 22 ms 3572 KB Output is correct
50 Correct 23 ms 4716 KB Output is correct
51 Correct 25 ms 4716 KB Output is correct
52 Correct 16 ms 2548 KB Output is correct
53 Correct 13 ms 1656 KB Output is correct
54 Correct 16 ms 3952 KB Output is correct
55 Correct 24 ms 4716 KB Output is correct
56 Correct 19 ms 4208 KB Output is correct
57 Correct 20 ms 4076 KB Output is correct
58 Correct 20 ms 4208 KB Output is correct
59 Correct 20 ms 4336 KB Output is correct
60 Correct 20 ms 4336 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 380 KB Output is correct
6 Correct 5 ms 252 KB Output is correct
7 Correct 5 ms 376 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 4 ms 376 KB Output is correct
12 Correct 5 ms 380 KB Output is correct
13 Correct 5 ms 248 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 504 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 5 ms 376 KB Output is correct
26 Correct 5 ms 376 KB Output is correct
27 Correct 5 ms 376 KB Output is correct
28 Correct 5 ms 376 KB Output is correct
29 Correct 5 ms 380 KB Output is correct
30 Correct 5 ms 376 KB Output is correct
31 Correct 6 ms 504 KB Output is correct
32 Correct 6 ms 504 KB Output is correct
33 Correct 5 ms 376 KB Output is correct
34 Correct 6 ms 504 KB Output is correct
35 Correct 6 ms 504 KB Output is correct
36 Correct 5 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 5 ms 376 KB Output is correct
39 Correct 5 ms 504 KB Output is correct
40 Correct 5 ms 504 KB Output is correct
41 Correct 5 ms 504 KB Output is correct
42 Correct 5 ms 504 KB Output is correct
43 Correct 5 ms 504 KB Output is correct
44 Correct 5 ms 504 KB Output is correct
45 Correct 6 ms 504 KB Output is correct
46 Correct 20 ms 4208 KB Output is correct
47 Correct 19 ms 4208 KB Output is correct
48 Correct 21 ms 2552 KB Output is correct
49 Correct 22 ms 3572 KB Output is correct
50 Correct 23 ms 4716 KB Output is correct
51 Correct 25 ms 4716 KB Output is correct
52 Correct 16 ms 2548 KB Output is correct
53 Correct 13 ms 1656 KB Output is correct
54 Correct 16 ms 3952 KB Output is correct
55 Correct 24 ms 4716 KB Output is correct
56 Correct 19 ms 4208 KB Output is correct
57 Correct 20 ms 4076 KB Output is correct
58 Correct 20 ms 4208 KB Output is correct
59 Correct 20 ms 4336 KB Output is correct
60 Correct 20 ms 4336 KB Output is correct
61 Correct 65 ms 16480 KB Output is correct
62 Correct 69 ms 16580 KB Output is correct
63 Correct 75 ms 16992 KB Output is correct
64 Correct 91 ms 12912 KB Output is correct
65 Correct 98 ms 19424 KB Output is correct
66 Correct 112 ms 19424 KB Output is correct
67 Correct 84 ms 17248 KB Output is correct
68 Correct 43 ms 8936 KB Output is correct
69 Correct 66 ms 15584 KB Output is correct
70 Correct 101 ms 19424 KB Output is correct
71 Correct 68 ms 16584 KB Output is correct
72 Correct 77 ms 16864 KB Output is correct
73 Correct 86 ms 17512 KB Output is correct
74 Correct 86 ms 17888 KB Output is correct
75 Correct 87 ms 17888 KB Output is correct