제출 #1064105

#제출 시각아이디문제언어결과실행 시간메모리
1064105damjandavkov곤돌라 (IOI14_gondola)C++17
55 / 100
16 ms6236 KiB
#include "gondola.h"
#include <bits/stdc++.h>
using namespace std;
int valid(int n, int v[])
{
    int i, x = -1, y;
    vector<bool> w(250000, 0);
    for (i = 0; i < n; i++)
    {
        v[i]--;
        if (w[v[i]])
            return 0;
        w[v[i]] = 1;
        if (v[i] < n)
        {
            y = v[i] - i;
            if (y < 0)
                y += n;
            if (x == -1)
                x = y;
            if (x != y)
                return 0;
        }
    }
    return 1;
}
int replacement(int n, int v[], int rS[])
{
    int i, x = -1, y, t = n, j = 0;
    vector<bool> w(250000, 0);
    vector<vector<int> > in(n);
    for (i = 0; i < n; i++)
    {
        v[i]--;
        if (w[v[i]])
            return 0;
        w[v[i]] = 1;
        if (v[i] < n)
        {
            y = v[i] - i;
            if (y < 0)
                y += n;
            if (x == -1)
                x = y;
            if (x != y)
                return 0;
        }
    }
    if (x == -1)
        x = 0;
    for (i = 0; i < n; i++)
        in[(i + x) % n] = {v[i], (i + x) % n};
    sort(in.begin(), in.end());
    for (i = 0; i < n; i++)
    {
        if (in[i][0] < n)
            continue;
        rS[j] = in[i][1] + 1;
        j++;
        t++;
        while (t <= in[i][0])
        {
            rS[j] = t;
            j++;
            t++;
        }
    }
    return j;
}
int countReplacement(int n, int v[])
{
    return -3;
}
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