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Submission #564869

# Submission time Handle Problem Language Result Execution time Memory
564869 2022-05-19T21:37:27 Z four_specks Rice Hub (IOI11_ricehub) C++17
100 / 100
 26 ms 3336 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] - pref[m] + suff[i] - suff[m] + (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 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 308 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 312 KB Output is correct
2 Correct 1 ms 232 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 0 ms 212 KB Output is correct
7 Correct 1 ms 212 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 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 1 ms 308 KB Output is correct
16 Correct 1 ms 316 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 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 312 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 1 ms 212 KB Output is correct
26 Correct 1 ms 308 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 312 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 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 308 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 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 1 ms 312 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 316 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 2 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 724 KB Output is correct
2 Correct 3 ms 836 KB Output is correct
3 Correct 15 ms 3268 KB Output is correct
4 Correct 19 ms 3284 KB Output is correct
5 Correct 9 ms 1604 KB Output is correct
6 Correct 9 ms 1620 KB Output is correct
7 Correct 17 ms 3040 KB Output is correct
8 Correct 22 ms 3040 KB Output is correct
9 Correct 8 ms 1568 KB Output is correct
10 Correct 8 ms 1492 KB Output is correct
11 Correct 16 ms 3236 KB Output is correct
12 Correct 16 ms 3336 KB Output is correct
13 Correct 7 ms 1632 KB Output is correct
14 Correct 8 ms 1696 KB Output is correct
15 Correct 12 ms 2476 KB Output is correct
16 Correct 11 ms 2516 KB Output is correct
17 Correct 14 ms 2888 KB Output is correct
18 Correct 13 ms 2968 KB Output is correct
19 Correct 26 ms 3100 KB Output is correct
20 Correct 16 ms 3208 KB Output is correct