Wrong Answer
/in/foo.cc: In function 'int main()':
/in/foo.cc:188:10: warning: unused variable 'z' [-Wunused-variable]
int x,y,z;
^
/in/foo.cc: In function 'int main()':
/in/foo.cc:188:10: warning: unused variable 'z' [-Wunused-variable]
int x,y,z;
^
