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Submission #418398

# Submission time Handle Problem Language Result Execution time Memory
418398 2021-06-05T10:46:08 Z temurbek_khujaev Rice Hub (IOI11_ricehub) C++17
100 / 100
 30 ms 1488 KB 
#include "ricehub.h"
#include <bits/stdc++.h>

using namespace std;


int besthub(int R, int L, int X[], long long B) {
    int ans = 0;
    vector<long long> pref(R, 0);
    for (int i = 0; i < R; i++) {
        pref[i] = i == 0 ? X[0] : (pref[i - 1] + X[i]);
    }
    for (int i = 0; i < R; i++) {
        int l = 1, r = R;
        while (l <= r) {
            int m = (l + r) >> 1;
            int left = i - m / 2 + 1;
            int right = i + (m + 1) / 2;
            bool good = false;
            if (left >= 0 && right < R) {
                long long d1 = pref[right] - pref[i] - (right - i) * 1ll * X[i];
                long long d2 = 1ll * X[i] * (i - left + 1) - pref[i] + (left == 0 ? 0 : pref[left - 1]);
                good |= d1 + d2 <= B;
            }
            left--;
            right--;
            if (left >= 0 && right < R) {
                long long d1 = pref[right] - pref[i] - (right - i) * 1ll * X[i];
                long long d2 = 1ll * X[i] * (i - left + 1) - pref[i] + (left == 0 ? 0 : pref[left - 1]);
                good |= d1 + d2 <= B;
            }
            left+=2;
            right+=2;
            if (left >= 0 && right < R) {
                long long d1 = pref[right] - pref[i] - (right - i) * 1ll * X[i];
                long long d2 = 1ll * X[i] * (i - left + 1) - pref[i] + (left == 0 ? 0 : pref[left - 1]);
                good |= d1 + d2 <= B;
            }

            if (good) {
                l = m + 1;
                ans = max(ans, m);
            } else r = m - 1;
        }


    }


    return ans;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 2 ms 332 KB Output is correct
22 Correct 2 ms 332 KB Output is correct
23 Correct 2 ms 332 KB Output is correct
24 Correct 2 ms 332 KB Output is correct
25 Correct 2 ms 332 KB Output is correct
26 Correct 2 ms 332 KB Output is correct
27 Correct 2 ms 332 KB Output is correct
28 Correct 2 ms 332 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 460 KB Output is correct
2 Correct 6 ms 460 KB Output is correct
3 Correct 30 ms 1488 KB Output is correct
4 Correct 30 ms 1364 KB Output is correct
5 Correct 14 ms 844 KB Output is correct
6 Correct 15 ms 844 KB Output is correct
7 Correct 29 ms 1484 KB Output is correct
8 Correct 28 ms 1368 KB Output is correct
9 Correct 15 ms 844 KB Output is correct
10 Correct 14 ms 844 KB Output is correct
11 Correct 30 ms 1400 KB Output is correct
12 Correct 30 ms 1484 KB Output is correct
13 Correct 15 ms 844 KB Output is correct
14 Correct 15 ms 844 KB Output is correct
15 Correct 22 ms 1100 KB Output is correct
16 Correct 22 ms 1100 KB Output is correct
17 Correct 26 ms 1356 KB Output is correct
18 Correct 26 ms 1360 KB Output is correct
19 Correct 29 ms 1356 KB Output is correct
20 Correct 28 ms 1356 KB Output is correct