/in/foo.cc: In function 'int main()':
/in/foo.cc:12:7: warning: unused variable 'k' [-Wunused-variable]
   int k=i;
       ^
/in/foo.cc: In function 'int ss(int)':
/in/foo.cc:45:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:27:12: warning: 'imax' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout<<imax; 
            ^