foo.cc: In function 'int LCM(int, int)':
foo.cc:17:10: warning: 'GCD' may be used uninitialized in this function [-Wmaybe-uninitialized]
  LCM = (x/GCD)*y;     
        ~~^~~~~
foo.cc: In function 'int main()':
foo.cc:17:10: warning: 'GCD' may be used uninitialized in this function [-Wmaybe-uninitialized]
  LCM = (x/GCD)*y;     
        ~~^~~~~
foo.cc:5:14: note: 'GCD' was declared here
  int i,z,LCM,GCD;
              ^~~
foo.cc:17:10: warning: 'GCD' may be used uninitialized in this function [-Wmaybe-uninitialized]
  LCM = (x/GCD)*y;     
        ~~^~~~~
foo.cc:5:14: note: 'GCD' was declared here
  int i,z,LCM,GCD;
              ^~~

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