Submission #1235505

#	Time	Username	Problem	Language	Result	Execution time	Memory
1235505		porquenomedejainiciarsesion	Sorting (IOI15_sorting)	C++20	20 / 100	1 ms	584 KiB

sorting

#include <bits/stdc++.h>
#include "sorting.h"
using namespace std;
int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
    map<int,int> pos;
    for (int i = 0; i < N; i++) {
        pos[S[i]] = i;
    }
    int cnt = 0;
    for (int i=0;i<N;i++) {
        while (S[i] != i) {
            int correct_pos=pos[i]; 
            P[cnt]=i;
            Q[cnt]=correct_pos;
            cnt++;
            pos[S[i]]=correct_pos;
            pos[S[correct_pos]]=i;
            swap(S[i], S[correct_pos]);
        }
    }
    return cnt;
}

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