hdu 1425排序

#include <iostream>#include <cstring>#include <cstdio>#include <algorithm>using namespace std;  int a[1000005];  int main()  {      int n,m;      while(scanf("%d%d",&n,&m)==2)      {          for(int i=0;i<n;i++)          scanf("%d",&a[i]);          sort(a,a+n,greater<int>());          printf("%d",a[0]);          for(int i=1;i<m;i++)          printf(" %d",a[i]);          printf("\n");      }      return 0;  }