/in/foo.cc: In member function 'void Times::Timecount(Times, int)':
/in/foo.cc:155:9: warning: 'month' may be used uninitialized in this function [-Wmaybe-uninitialized]
         if (month > 12)
         ^~
/in/foo.cc:161:37: warning: 'day' may be used uninitialized in this function [-Wmaybe-uninitialized]
         cout << year << month << day;
                                     ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:169:20: warning: 's1' is used uninitialized in this function [-Wuninitialized]
     t_1.RunningTime(h1, m1, s1 + addday);
     ~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~