Submission #1088687

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088687		gustavo_d	Sorting (IOI15_sorting)	C++17	54 / 100	10 ms	664 KiB

sorting

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

int findSwapPairs(
	int N, int S[], int M, int X[], int Y[], int P[], int Q[]
) {
	if (N == 1) return 0;

    for (int t=0; t<N; t++) {
		for (int i=1; i<N; i++) {
			if (S[i] < S[i-1]) break;
			if (i == N-1) return t;
		}
		swap(S[X[t]], S[Y[t]]);

    	int permut[N];
    	for (int i=0; i<N; i++) permut[i] = i;
    	for (int i=t+1; i<M; i++) {
    		swap(permut[X[i]], permut[Y[i]]);
    	}
    	int a=0, b=0;
    	for (int i=0; i<N; i++) {
    		if (S[i] == t) a = i;
    	}
    	b = permut[t];
    	swap(S[a], S[b]);
    	P[t] = a; Q[t] = b;
    }
    // cout << "ans = ";
    // for (int i=0; i<N; i++) cout << S[i] << ' ';
    // cout << endl;

    for (int t=N; t<M; t++) {
    	P[t] = Q[t] = 0;
    }
    return M;
}

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