Time Exceeded
/in/foo.cc: In function 'void chgs(int, int)':
/in/foo.cc:19:7: warning: unused variable 'flag' [-Wunused-variable]
bool flag=false;
^~~~
/in/foo.cc: In function 'void chgs(int, int)':
/in/foo.cc:19:7: warning: unused variable 'flag' [-Wunused-variable]
bool flag=false;
^~~~
