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Submission #238000

# Submission time Handle Problem Language Result Execution time Memory
238000 2020-06-09T16:26:17 Z Kubin Boxes with souvenirs (IOI15_boxes) C++17
10 / 100
 5 ms 384 KB 
#include <bits/stdc++.h>

using namespace std;

long long delivery(int _n, int _k, int l, int p[])
{
    size_t n = _n, k = _k;
    vector<int> A[2];
    A[0].reserve(n); A[1].reserve(n);
    for(size_t i = 0; i < n; i++)
    {
        if(p[i] <= l/2) A[0].push_back(p[i]);
        else            A[1].push_back(l - p[i]);
    }
    reverse(A[1].begin(), A[1].end());

    size_t ni = n;
    int64_t result = INT64_MAX, base = 0;
    while(ni)
    {
        int64_t curr = base;
        for(size_t t = 0; t < 2; t++)
            for(size_t i = A[t].size() - 1; i < A[t].size(); i -= k)
                curr += 2 * A[t][i];
        result = min(result, curr);

        for(size_t i = 0; i < k and ni; i++, ni--)
        {
            if(A[0].empty())                    A[1].pop_back();
            else if(A[1].empty())               A[0].pop_back();
            else if(A[0].back() > A[1].back())  A[1].pop_back();
            else                                A[0].pop_back();
        }
        base += l;
    }

    return result;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 256 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Incorrect 5 ms 256 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Incorrect 5 ms 256 KB Output isn't correct
9 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 256 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Incorrect 5 ms 256 KB Output isn't correct
9 Halted 0 ms 0 KB -