运行 ID: 140515

Main.cc: In function ‘int main()’:
Main.cc:10:6: error: ‘f’ was not declared in this scope
   if(f[lis]<=a[i]) f[++lis]=a[i];
      ^
Main.cc:17:12: error: expected primary-expression before ‘<=’ token
     if(mid)<=a[i]
            ^~