View Compilation Error

0_0_35279102_3627.cpp: In function 'int main()':
0_0_35279102_3627.cpp:19:5: error: too many arguments to function 'void f()'
  f(1); 
     ^
0_0_35279102_3627.cpp:4:6: note: declared here
 void f()
      ^
0_0_35279102_3627.cpp:24:23: error: 'dp' cannot be used as a function
   printf("%lld\n",dp(m));  
                       ^