oj.uz

Submission #725950

# Submission time Handle Problem Language Result Execution time Memory
725950 2023-04-18T09:17:22 Z adrilen Rice Hub (IOI11_ricehub) C++17
68 / 100
 79 ms 2884 KB 
#include "ricehub.h"
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
typedef pair<int, int> pii;



int besthub(int n, int L, int X[], long long b)
{
    vector <ll> fields;
    for (int i = 0; i < n; i++) fields.emplace_back(X[i]);

    if (n <= 5e3)
    {
        ll cur = 0;
        if (n == 1) return 1;
        int output = 0;

        ll p;
        int left, right;
        for (int i = 0; i < n; i++)
        {
            p = fields[i];
            cur = b;
            left = i - 1, right = i + 1;

            while (true)
            {
                if (left < 0 && right == n)
                {
                    break;
                } else if (left < 0)
                {   
                    if (cur >= fields[right] - p) {
                        cur -= fields[right] - p;
                        right++;
                    } else break;
                } else if (right == n)
                {
                    if (cur >= p - fields[left]) {
                        cur -= p - fields[left];
                        left--;
                    } else break;
                }
                else if (p - fields[left] < fields[right] - p)
                {
                    if (cur >= p - fields[left]) {
                        cur -= p - fields[left];
                        left--;
                    } else break;
                } else {
                    if (cur >= fields[right] - p) {
                        cur -= fields[right] - p;
                        right++;
                    } else break;
                }
            }
            output = max(output, right - left - 1);
        }
        return output;
    }

    auto lt = fields.begin(), pos = fields.begin(), rt = fields.begin() + 1;
    ll left, right;
    left = right = 0;
    ll cur = 0;
    ll output = 0;


    while (pos != fields.end())
    {

        while (b < cur)
        {
            cur -= *pos - *lt;
            lt++, left--;
        }

        while (rt != fields.end() && cur + *rt - *pos <= b)
        {   
            cur += *rt - *pos;
            right++, rt++;
        }

        while (rt != fields.end() && (*pos - *lt) > (*rt - *pos))
        {
            left--, right++, lt++, rt++;
            while (rt != fields.end() && cur + *rt - *pos <= b)
            {   
                cur += *rt - *pos;
                right++, rt++;
            }
        }

        output = max(output, left + right + 1);

        if (pos + 1 != fields.end()) {
            cur += (*(pos + 1) - *pos) * (left + 1);
            cur += (*pos - *(pos + 1)) * (right);
        }
        pos++, left++, right--;

    }
    return output;
}

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 1 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 1 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 1 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 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 0 ms 212 KB Output is correct
14 Correct 0 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 0 ms 212 KB Output is correct
17 Correct 1 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 1 ms 212 KB Output is correct
22 Correct 1 ms 212 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 212 KB Output is correct
27 Correct 0 ms 212 KB Output is correct
28 Correct 1 ms 212 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 2 ms 212 KB Output is correct
4 Correct 2 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 212 KB Output is correct
8 Correct 1 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 2 ms 212 KB Output is correct
14 Correct 2 ms 212 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 3 ms 212 KB Output is correct
18 Correct 3 ms 212 KB Output is correct
19 Correct 4 ms 212 KB Output is correct
20 Correct 4 ms 212 KB Output is correct
21 Correct 4 ms 436 KB Output is correct
22 Correct 3 ms 340 KB Output is correct
23 Correct 39 ms 340 KB Output is correct
24 Correct 33 ms 340 KB Output is correct
25 Correct 78 ms 340 KB Output is correct
26 Correct 79 ms 424 KB Output is correct
27 Correct 22 ms 436 KB Output is correct
28 Correct 25 ms 412 KB Output is correct

Subtask #4
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 724 KB Output is correct
2 Correct 2 ms 724 KB Output is correct
3 Correct 11 ms 1756 KB Output is correct
4 Correct 13 ms 2884 KB Output is correct
5 Correct 5 ms 1476 KB Output is correct
6 Correct 6 ms 1488 KB Output is correct
7 Correct 12 ms 2616 KB Output is correct
8 Correct 11 ms 2596 KB Output is correct
9 Correct 6 ms 1360 KB Output is correct
10 Correct 6 ms 1360 KB Output is correct
11 Correct 13 ms 2884 KB Output is correct
12 Correct 13 ms 2820 KB Output is correct
13 Incorrect 6 ms 1520 KB Output isn't correct
14 Halted 0 ms 0 KB -