1、sort 1425：

  1. 数组的长度不固定；
  2. 哪里错了呢？ 
#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
const int MAXN = 1e6;
const int RANGE = 5e5;
int arr[MAXN];
int number[MAXN];//计数的数组
int main(){
         int n, m;
         while (scanf("%d%d", &n, &m)!= EOF){
                memset(number, 0, sizeof(number));
            for(int i=0; i<n; ++i){
                scanf("%d", &arr[i]);
                number[arr[i] +RANGE]++;
            }
            int index = 0;
            for(int i=0; i<MAXN; ++i){
                while (number[i]--){
                    arr[index ++] = i - RANGE;
                }
            }
            for (int i = n-1; i>= n-m; --i){
                if(i == n-m){
                    printf("%d\n", arr[i]);
                }else{
                    printf("\d ", arr[i]);
                }
            }
         };
         return 0;
}