Submission #287475

#	Time	Username	Problem	Language	Result	Execution time	Memory
287475		AaronNaidu	Sorting (IOI15_sorting)	C++14	0 / 100	8 ms	768 KiB

sorting

#include <bits/stdc++.h>
using namespace std;

vector<int> s;
int n;

bool sorted() {
    for (int i = 0; i < n; i++)
    {
        if (s[i] != i)
        {
            return false;
        }
    }
    return true;
}

int findSwapPairs(int N,int S[],int M, int X[],int Y[], int P[],int Q[]) {
    for (int i = 0; i < M; i++)
    {
        P[i] = 0;
        Q[i] = 0;
    }
    n = N;
    for (int i = 0; i < N; i++)
    {
        s.push_back(S[i]);
    }
    for (int i = 0; i < N; i++)
    {
        if (sorted())
        {
            return i;
        }
        swap(s[X[i]], s[Y[i]]);
        swap(S[X[i]], S[Y[i]]);
        for (int j = 0; j < N; j++)
        {
            if (S[j] == i)
            {
                P[i] = j;
                Q[i] = i;
                swap(s[j], s[i]);
                swap(S[j], S[i]);
                break;
            }
            if (j == N-1)
            {
                assert(false);
            }
        }
    }
    assert(sorted());
    return N;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 20
• Subtask 6: 0 / 26