Submission #993812

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
993812	2024-06-06T12:50:39 Z	VMaksimoski008	Bigger segments (IZhO19_segments)	C++17	37 / 100	124 ms	262144 KB

segments

#include <bits/stdc++.h>

#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define int long long

using namespace std;

using ll = long long;
using ull = unsigned long long;
using ld = long double;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int mod = 1e9 + 7;
const int LOG = 20;
const int maxn = 1e5 + 5;
const double eps = 1e-9;

int32_t main() {
    ios_base::sync_with_stdio(false);
    cout.tie(0); cin.tie(0);

    int n;
    cin >> n;

    vector<int> v(n+1);
    vector<ll> pref(n+1);
    for(int i=1; i<=n; i++) {
        cin >> v[i];
        pref[i] = pref[i-1] + v[i];
    }

    int dp[n+1][n+1];
    for(int i=0; i<=n; i++)
        for(int j=0; j<=n; j++) dp[i][j] = -1e9;
    for(int i=1; i<=n; i++) dp[1][i] = 1;

    for(int i=2; i<=n; i++) {
        int k = i, mx = -1e9 - 1;
        for(int j=i; j<=n; j++) {
            // for(int k=1; k<i; k++)
            //     if(pref[j] + pref[k-1] >= 2 * pref[i-1]) dp[i][j] = max(dp[i][j], dp[k][i-1] + 1);
            while(k > 1 && pref[j] + pref[k-2] >= 2 * pref[i-1]) mx = max(mx, dp[k-1][i-1]), k--;
            if(k != i) dp[i][j] = mx + 1;
        }
    }

    int ans = 0;
    for(int i=1; i<=n; i++) ans = max(ans, dp[i][n]);
    cout << ans << '\n';
    return 0;
}

Subtask #1
13.0 / 13.0

#	Verdict	Execution time	Memory	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	456 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 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

Subtask #2
14.0 / 14.0

#	Verdict	Execution time	Memory	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	456 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 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	2 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	2 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	2 ms	2396 KB	Output is correct
22	Correct	1 ms	1628 KB	Output is correct
23	Correct	1 ms	1116 KB	Output is correct
24	Correct	2 ms	2396 KB	Output is correct
25	Correct	2 ms	2396 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	2396 KB	Output is correct
29	Correct	2 ms	2396 KB	Output is correct
30	Correct	2 ms	2396 KB	Output is correct

Subtask #3
10.0 / 10.0

#	Verdict	Execution time	Memory	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	456 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 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	2 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	2 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	2 ms	2396 KB	Output is correct
22	Correct	1 ms	1628 KB	Output is correct
23	Correct	1 ms	1116 KB	Output is correct
24	Correct	2 ms	2396 KB	Output is correct
25	Correct	2 ms	2396 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	2396 KB	Output is correct
29	Correct	2 ms	2396 KB	Output is correct
30	Correct	2 ms	2396 KB	Output is correct
31	Correct	50 ms	71004 KB	Output is correct
32	Correct	49 ms	71004 KB	Output is correct
33	Correct	56 ms	70992 KB	Output is correct
34	Correct	48 ms	70924 KB	Output is correct
35	Correct	49 ms	71012 KB	Output is correct
36	Correct	80 ms	70996 KB	Output is correct
37	Correct	43 ms	49244 KB	Output is correct
38	Correct	28 ms	31836 KB	Output is correct
39	Correct	67 ms	70768 KB	Output is correct
40	Correct	54 ms	70996 KB	Output is correct
41	Correct	63 ms	70740 KB	Output is correct
42	Correct	49 ms	70944 KB	Output is correct
43	Correct	61 ms	70748 KB	Output is correct
44	Correct	51 ms	70736 KB	Output is correct
45	Correct	50 ms	71004 KB	Output is correct

Subtask #4
0 / 36.0

#	Verdict	Execution time	Memory	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	456 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 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	2 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	2 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	2 ms	2396 KB	Output is correct
22	Correct	1 ms	1628 KB	Output is correct
23	Correct	1 ms	1116 KB	Output is correct
24	Correct	2 ms	2396 KB	Output is correct
25	Correct	2 ms	2396 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	2396 KB	Output is correct
29	Correct	2 ms	2396 KB	Output is correct
30	Correct	2 ms	2396 KB	Output is correct
31	Correct	50 ms	71004 KB	Output is correct
32	Correct	49 ms	71004 KB	Output is correct
33	Correct	56 ms	70992 KB	Output is correct
34	Correct	48 ms	70924 KB	Output is correct
35	Correct	49 ms	71012 KB	Output is correct
36	Correct	80 ms	70996 KB	Output is correct
37	Correct	43 ms	49244 KB	Output is correct
38	Correct	28 ms	31836 KB	Output is correct
39	Correct	67 ms	70768 KB	Output is correct
40	Correct	54 ms	70996 KB	Output is correct
41	Correct	63 ms	70740 KB	Output is correct
42	Correct	49 ms	70944 KB	Output is correct
43	Correct	61 ms	70748 KB	Output is correct
44	Correct	51 ms	70736 KB	Output is correct
45	Correct	50 ms	71004 KB	Output is correct
46	Runtime error	124 ms	262144 KB	Execution killed with signal 9
47	Halted	0 ms	0 KB	-

Subtask #5
0 / 27.0

#	Verdict	Execution time	Memory	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	456 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 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	2 ms	2392 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	2 ms	2396 KB	Output is correct
19	Correct	1 ms	2396 KB	Output is correct
20	Correct	1 ms	2396 KB	Output is correct
21	Correct	2 ms	2396 KB	Output is correct
22	Correct	1 ms	1628 KB	Output is correct
23	Correct	1 ms	1116 KB	Output is correct
24	Correct	2 ms	2396 KB	Output is correct
25	Correct	2 ms	2396 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	2396 KB	Output is correct
29	Correct	2 ms	2396 KB	Output is correct
30	Correct	2 ms	2396 KB	Output is correct
31	Correct	50 ms	71004 KB	Output is correct
32	Correct	49 ms	71004 KB	Output is correct
33	Correct	56 ms	70992 KB	Output is correct
34	Correct	48 ms	70924 KB	Output is correct
35	Correct	49 ms	71012 KB	Output is correct
36	Correct	80 ms	70996 KB	Output is correct
37	Correct	43 ms	49244 KB	Output is correct
38	Correct	28 ms	31836 KB	Output is correct
39	Correct	67 ms	70768 KB	Output is correct
40	Correct	54 ms	70996 KB	Output is correct
41	Correct	63 ms	70740 KB	Output is correct
42	Correct	49 ms	70944 KB	Output is correct
43	Correct	61 ms	70748 KB	Output is correct
44	Correct	51 ms	70736 KB	Output is correct
45	Correct	50 ms	71004 KB	Output is correct
46	Runtime error	124 ms	262144 KB	Execution killed with signal 9
47	Halted	0 ms	0 KB	-

Submission #993812

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 0 / 36.0

Subtask #5 0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
0 / 36.0

Subtask #5
0 / 27.0