/in/foo.cc: In function 'int main()':
/in/foo.cc:36:7: error: redeclaration of 'int j'
   36 |   int j = 0, i = 0, u = 0;
      |       ^
/in/foo.cc:20:7: note: 'int j' previously declared here
   20 |   int j = 0 , i = 0,u = 0;
      |       ^
/in/foo.cc:36:14: error: redeclaration of 'int i'
   36 |   int j = 0, i = 0, u = 0;
      |              ^
/in/foo.cc:20:15: note: 'int i' previously declared here
   20 |   int j = 0 , i = 0,u = 0;
      |               ^
/in/foo.cc:36:21: error: redeclaration of 'int u'
   36 |   int j = 0, i = 0, u = 0;
      |                     ^
/in/foo.cc:20:21: note: 'int u' previously declared here
   20 |   int j = 0 , i = 0,u = 0;
      |                     ^