Submission #46764

#	Time	Username	Problem	Language	Result	Execution time	Memory
46764		RayaBurong25_1	Gondola (IOI14_gondola)	C++17	25 / 100	15 ms	1236 KiB

gondola

#include "gondola.h"
#include <vector>
#include <algorithm>
int Vis[250005];
int valid(int n, int inputSeq[])
{
    int i, r = -1;
    for (i = 0; i < n; i++)
    {
        if (Vis[inputSeq[i]])
            return 0;
        Vis[inputSeq[i]] = 1;
        if (inputSeq[i] <= n)
        {
            if (r == -1)
                r = (inputSeq[i] + n - (i + 1))%n;
            else if ((inputSeq[i] + n - (i + 1))%n != r)
                return 0;
        }
    }
    return 1;
}

//----------------------

int replacement(int n, int gondolaSeq[], int replacementSeq[])
{
    int i, r = -1;
    for (i = 0; i < n; i++)
    {
        if (gondolaSeq[i] <= n)
        {
            if (r == -1)
            {
                r = (gondolaSeq[i] + n - (i + 1))%n;
                break;
            }
        }
    }
    std::vector<std::pair<int, int> > V;
    for (i = 0; i < n; i++)
    {
        if (gondolaSeq[i] > n)
        {
            V.push_back({gondolaSeq[i], i});
            gondolaSeq[i] = (i + r)%n + 1;
        }
    }
    if (V.size() == 0)
        return 0;
    std::sort(V.begin(), V.end());
    r = 0;
    int j = 0;
    for (i = n + 1; i <= V.back().first; i++)
    {
        replacementSeq[r] = gondolaSeq[V[j].second];
        gondolaSeq[V[j].second] = i;
        if (V[j].first == i)
            j++;
        r++;
    }
    return r;
}

//----------------------

int countReplacement(int n, int inputSeq[])
{
  return -3;
}

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 10 / 10
• Subtask 4: 5 / 5
• Subtask 5: 0 / 10
• Subtask 6: 0 / 20
• Subtask 7: 0 / 5
• Subtask 8: 0 / 15
• Subtask 9: 0 / 15
• Subtask 10: 0 / 10