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CycleSort.java
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35 lines (30 loc) · 824 Bytes
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import java.util.*;
public class CycleSort {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int n = scan.nextInt();
int[] arr = new int[n];
for (int i = 0; i < n; i++) {
arr[i] = scan.nextInt();
}
sort(arr);
System.out.println(Arrays.toString(arr));
}
public static void sort(int[] arr) {
int n = arr.length;
int i = 0;
while (i < n) {
int correct = arr[i] - 1;
if (arr[i] != arr[correct]) {
swap(arr, i, correct);
} else {
i++;
}
}
}
public static void swap(int[] arr, int i, int correct) {
int temp = arr[i];
arr[i] = arr[correct];
arr[correct] = temp;
}
}