Wrong Answer
/in/foo.cc: In function 'double get(int, int, int, int)':
/in/foo.cc:59:23: warning: zero-length gnu_printf format string [-Wformat-zero-length]
printf("",x1,y1,x2,y2);
^
/in/foo.cc: In function 'double get(int, int, int, int)':
/in/foo.cc:59:23: warning: zero-length gnu_printf format string [-Wformat-zero-length]
printf("",x1,y1,x2,y2);
^
