代码如下: 1importjava.util.*;23publicclassSolution {4publicstaticvoidmain(String[] args) {5Scanner in =newScanner(System.in);6intn =in.nextInt();7int[] ar =newint[n];8for(inti = 0;i < n;i++)9ar[i]=in.nextInt();1011Arrays.sort(ar);12ArrayList<Integer> index =newArrayList<I...