运行 ID: 2153

Main.cc: In function ‘int main()’:
Main.cc:16:2: error: ‘cin’ was not declared in this scope
  cin>>n;
  ^~~
Main.cc:16:2: note: suggested alternative: ‘main’
  cin>>n;
  ^~~
  main
Main.cc:22:2: error: ‘sort’ was not declared in this scope
  sort(a,a+n,cmp);//按定义的排序方法排序
  ^~~~
Main.cc:22:2: note: suggested alternative: ‘short’
  sort(a,a+n,cmp);//按定义的排序方法排序
  ^~~~
  short
Main.cc:32:9: error: ‘max’ was not declared in this scope
     ans=max(ans,b[i]);
         ^~~
Main.cc:32:9: note: suggested alternative: ‘main’
     ans=max(ans,b[i]);
         ^~~
         main
Main.cc:36:2: error: ‘cout’ was not declared in this scope
  cout<