/in/foo.cc: In function 'int main()':
/in/foo.cc:138:21: error: redeclaration of 'int m'
  138 |         int y,m,d,h,m,s,second;
      |                     ^
/in/foo.cc:138:15: note: 'int m' previously declared here
  138 |         int y,m,d,h,m,s,second;
      |               ^
/in/foo.cc:141:18: error: conflicting declaration 'DateTime d'
  141 |         DateTime d(y,m,d,h,m,s);
      |                  ^
/in/foo.cc:138:17: note: previous declaration as 'int d'
  138 |         int y,m,d,h,m,s,second;
      |                 ^
/in/foo.cc:142:9: error: 't' was not declared in this scope
  142 |         t.Add(second);
      |         ^