输完样例记得ctrl+Z

#include<bits/stdc++.h>
using namespace std; 
int main()
{
  int a[30100]={},f[30010],i=1,j,maxn=-1;
  while(cin>>a[i])
  {
  	f[i]=1;
  	for(j=1;j<i;++j)
  	{
  	  if(a[j]>=a[i])
  	  f[i]=max(f[i],f[j]+1);
    }
    maxn=max(maxn,f[i]);
	++i;
  }
  cout<<maxn;
  return 0;
}