oj.uz

Submission #801997

# Submission time Handle Problem Language Result Execution time Memory
801997 2023-08-02T08:58:44 Z Johann Mizuyokan 2 (JOI23_mizuyokan2) C++14
15 / 100
 4000 ms 6032 KB 
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef vector<ll> vi;
typedef vector<vi> vvi;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

const int INF = 1e9;

int N, Q;
vi L;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);

    cin >> N;
    L.resize(N);
    for (int i = 0; i < N; ++i)
        cin >> L[i];
    cin >> Q;

    while (Q--)
    {
        ll x, y, a, b;
        cin >> x >> y >> a >> b;
        --x;
        L[x] = y;
        vi B(L.begin() + a, L.begin() + b);
        // starting with lower piece
        vi dp(sz(B), -INF); // dp[i] := number of zigzag pieces in prefix i with i as minimum

        dp[0] = 1;
        for (int i = 1; i < sz(B); ++i)
        {
            ll buffer = 0;
            for (int j = i - 1; j >= 0; --j)
            {
                buffer += B[j];
                if (buffer > B[i])
                {
                    dp[i] = max(dp[i], 2LL);
                    if (j > 0 && buffer > B[j - 1])
                        dp[i] = max(dp[i], dp[j - 1] + 2);
                }
            }
        }

        ll ans = max(1LL, dp.back());
        ll buffer = 0;
        for (int i = sz(B) - 1; i > 0; --i)
        {
            buffer += B[i];
            if (buffer > B[i - 1])
                ans = max(ans, dp[i - 1] + 1);
        }

        cout << ans << "\n";
    }
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 328 KB Output is correct
26 Correct 11 ms 376 KB Output is correct
27 Correct 11 ms 372 KB Output is correct
28 Correct 11 ms 388 KB Output is correct
29 Correct 9 ms 340 KB Output is correct
30 Correct 7 ms 340 KB Output is correct
31 Correct 8 ms 340 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 6 ms 340 KB Output is correct
34 Correct 8 ms 372 KB Output is correct
35 Correct 9 ms 340 KB Output is correct
36 Correct 5 ms 340 KB Output is correct
37 Correct 11 ms 376 KB Output is correct
38 Correct 4 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 336 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 328 KB Output is correct
26 Correct 11 ms 376 KB Output is correct
27 Correct 11 ms 372 KB Output is correct
28 Correct 11 ms 388 KB Output is correct
29 Correct 9 ms 340 KB Output is correct
30 Correct 7 ms 340 KB Output is correct
31 Correct 8 ms 340 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 6 ms 340 KB Output is correct
34 Correct 8 ms 372 KB Output is correct
35 Correct 9 ms 340 KB Output is correct
36 Correct 5 ms 340 KB Output is correct
37 Correct 11 ms 376 KB Output is correct
38 Correct 4 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 18 ms 3912 KB Output is correct
42 Correct 20 ms 4316 KB Output is correct
43 Correct 68 ms 4184 KB Output is correct
44 Correct 436 ms 3632 KB Output is correct
45 Execution timed out 4033 ms 5836 KB Time limit exceeded
46 Halted 0 ms 0 KB -

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 227 ms 4952 KB Output is correct
3 Execution timed out 4062 ms 6032 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 214 ms 4892 KB Output is correct
4 Execution timed out 4043 ms 5104 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 320 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 320 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 324 KB Output is correct
12 Correct 1 ms 320 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 320 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 324 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 2 ms 328 KB Output is correct
26 Correct 11 ms 376 KB Output is correct
27 Correct 11 ms 372 KB Output is correct
28 Correct 11 ms 388 KB Output is correct
29 Correct 9 ms 340 KB Output is correct
30 Correct 7 ms 340 KB Output is correct
31 Correct 8 ms 340 KB Output is correct
32 Correct 6 ms 340 KB Output is correct
33 Correct 6 ms 340 KB Output is correct
34 Correct 8 ms 372 KB Output is correct
35 Correct 9 ms 340 KB Output is correct
36 Correct 5 ms 340 KB Output is correct
37 Correct 11 ms 376 KB Output is correct
38 Correct 4 ms 340 KB Output is correct
39 Correct 1 ms 340 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 18 ms 3912 KB Output is correct
42 Correct 20 ms 4316 KB Output is correct
43 Correct 68 ms 4184 KB Output is correct
44 Correct 436 ms 3632 KB Output is correct
45 Execution timed out 4033 ms 5836 KB Time limit exceeded
46 Halted 0 ms 0 KB -