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Submission #564870

# Submission time Handle Problem Language Result Execution time Memory
564870 2022-05-19T21:40:22 Z four_specks Rice Hub (IOI11_ricehub) C++17
100 / 100
 22 ms 2280 KB 
#include "ricehub.h"

#include <bits/stdc++.h>

using namespace std;

namespace
{
} // namespace

int besthub(int R, int L, int X[], long long B)
{
    vector<long> pref(R + 1, 0), suff(R + 1, 0);
    for (int i = 0; i < R; i++)
        pref[i + 1] = pref[i] + X[i];
    for (int i = R - 1; i >= 0; i--)
        suff[i] = suff[i + 1] - X[i];

    int res = 0;

    for (int i = 0; i < R; i++)
    {
        int lo = i, hi = R;
        while (lo < hi)
        {
            int mid = (lo + hi + 1) / 2;

            int m = (i + mid - 1) / 2;
            if (pref[mid] - 2 * pref[m] + pref[i] + (long)(2 * m - i - mid) * X[m] <= B)
                lo = mid;
            else
                hi = mid - 1;
        }

        res = max(res, lo - i);
    }

    return res;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 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 0 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 0 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 0 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 0 ms 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 0 ms 212 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 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 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 0 ms 212 KB Output is correct
18 Correct 0 ms 212 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 ms 340 KB Output is correct
23 Correct 1 ms 340 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 340 KB Output is correct
26 Correct 1 ms 340 KB Output is correct
27 Correct 1 ms 340 KB Output is correct
28 Correct 1 ms 340 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 596 KB Output is correct
2 Correct 3 ms 596 KB Output is correct
3 Correct 19 ms 2280 KB Output is correct
4 Correct 14 ms 2264 KB Output is correct
5 Correct 7 ms 1296 KB Output is correct
6 Correct 8 ms 1236 KB Output is correct
7 Correct 13 ms 2276 KB Output is correct
8 Correct 14 ms 2184 KB Output is correct
9 Correct 7 ms 1236 KB Output is correct
10 Correct 7 ms 1236 KB Output is correct
11 Correct 22 ms 2260 KB Output is correct
12 Correct 16 ms 2232 KB Output is correct
13 Correct 8 ms 1236 KB Output is correct
14 Correct 9 ms 1236 KB Output is correct
15 Correct 12 ms 1748 KB Output is correct
16 Correct 11 ms 1700 KB Output is correct
17 Correct 13 ms 2004 KB Output is correct
18 Correct 14 ms 2004 KB Output is correct
19 Correct 16 ms 2076 KB Output is correct
20 Correct 13 ms 2092 KB Output is correct