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Submission #336095

# Submission time Handle Problem Language Result Execution time Memory
336095 2020-12-14T17:35:10 Z saarang123 Rice Hub (IOI11_ricehub) C++14
100 / 100
 24 ms 1516 KB 
#include <bits/stdc++.h>
#include "ricehub.h"
using namespace std;

int besthub(int N, int L, int A[], long long B) {
    int answer = 0, low = 0, high = N;
    long long pref[N + 1];
    pref[0] = 0;
    for(int i = 1; i <= N; i++) pref[i] = pref[i - 1] + A[i - 1];
    while(low < high) {
        int mid = (low + high + 1) / 2;
        bool possible = false;
        for(int i = 0; i < N; i++) {
            int start = i, end = i + mid;
            if(end > N) break;
            int hub = (start + 1 + end) / 2;
            long long cost = abs((pref[hub] - pref[start]) - (long long) (hub - start) * A[hub - 1]);
            cost += abs((pref[end] - pref[hub]) - (long long) (end - hub) * A[hub - 1]);
            if(cost <= B) {
                possible = true;
                break;
            }
        }
        if(possible) {
            answer = max(answer, mid);
            low = mid;
        } else {
            high = mid - 1;
        }
    }
    return low;
}

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct

Subtask #2
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 0 ms 364 KB Output is correct
3 Correct 0 ms 364 KB Output is correct
4 Correct 0 ms 364 KB Output is correct
5 Correct 0 ms 364 KB Output is correct
6 Correct 0 ms 364 KB Output is correct
7 Correct 0 ms 364 KB Output is correct
8 Correct 0 ms 364 KB Output is correct
9 Correct 0 ms 364 KB Output is correct
10 Correct 0 ms 364 KB Output is correct
11 Correct 0 ms 364 KB Output is correct
12 Correct 0 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 0 ms 364 KB Output is correct
15 Correct 0 ms 364 KB Output is correct
16 Correct 0 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 0 ms 364 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct

Subtask #3
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 364 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 364 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 364 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 1 ms 364 KB Output is correct
26 Correct 1 ms 364 KB Output is correct
27 Correct 1 ms 364 KB Output is correct
28 Correct 1 ms 364 KB Output is correct

Subtask #4
32.0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 492 KB Output is correct
2 Correct 4 ms 492 KB Output is correct
3 Correct 15 ms 1516 KB Output is correct
4 Correct 15 ms 1516 KB Output is correct
5 Correct 9 ms 876 KB Output is correct
6 Correct 9 ms 876 KB Output is correct
7 Correct 14 ms 1516 KB Output is correct
8 Correct 13 ms 1516 KB Output is correct
9 Correct 8 ms 876 KB Output is correct
10 Correct 8 ms 876 KB Output is correct
11 Correct 15 ms 1516 KB Output is correct
12 Correct 15 ms 1516 KB Output is correct
13 Correct 9 ms 876 KB Output is correct
14 Correct 9 ms 876 KB Output is correct
15 Correct 12 ms 1132 KB Output is correct
16 Correct 11 ms 1132 KB Output is correct
17 Correct 13 ms 1388 KB Output is correct
18 Correct 16 ms 1388 KB Output is correct
19 Correct 14 ms 1388 KB Output is correct
20 Correct 24 ms 1388 KB Output is correct