Submission #135849

#	Time	Username	Problem	Language	Result	Execution time	Memory
135849		AyaBenSaad	Sorting (IOI15_sorting)	C++14	20 / 100	3 ms	504 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[]) {
    int r = 0;
    pair <int, int> t[N], a[N];
    for (int i = 0; i < N; i++) t[i] = {S[i], i};
    sort (t, t+N);
	for (int i = 0; i < N; i++) {
		a[t[i].second] = {t[i].second, i};
	}
	int id = 0;
	while (id < N) {
		while (a[id].second != id) {
			P[r] = id;
			Q[r] = a[id].second;
			swap (a[id], a[a[id].second]);
			r++;
		}
		id++;
	}
	return r;
}

Compilation message (stderr)

sorting.cpp: In function 'int findSwapPairs(int, int*, int, int*, int*, int*, int*)':
sorting.cpp:6:39: warning: unused parameter 'M' [-Wunused-parameter]
 int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
                                       ^
sorting.cpp:6:48: warning: unused parameter 'X' [-Wunused-parameter]
 int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
                                                ^
sorting.cpp:6:57: warning: unused parameter 'Y' [-Wunused-parameter]
 int findSwapPairs(int N, int S[], int M, int X[], int Y[], int P[], int Q[]) {
                                                         ^

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