Wrong Answer
/in/foo.cc: In function 'void down(int, int, int)':
/in/foo.cc:43:7: warning: unused variable 'm' [-Wunused-variable]
int m = L + (R - L) / 2;
^
/in/foo.cc: In function 'void down(int, int, int)':
/in/foo.cc:43:7: warning: unused variable 'm' [-Wunused-variable]
int m = L + (R - L) / 2;
^
