Arrays.parallelSort(ns);
int [] a = new int[(int)ns.length];
for (int n = 0 ;n <= ns.length-1 ; n++) {
a[n] = ns[ ns.length - 1-n];
}
ns = a;
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杨森-ys
Arrays.parallelSort(ns);
int [] a = new int[(int)ns.length];
for (int n = 0 ;n <= ns.length-1 ; n++) {
a[n] = ns[ ns.length - 1-n];
}
ns = a;