foo.cc: In function 'int main()':
foo.cc:24:15: warning: 'a' is used uninitialized [-Wuninitialized]
   24 |         cout<<a<<b;
      |               ^
foo.cc:6:19: note: 'a' was declared here
    6 |         int n,x=1,a,b;
      |                   ^
foo.cc:24:18: warning: 'b' is used uninitialized [-Wuninitialized]
   24 |         cout<<a<<b;
      |                  ^
foo.cc:6:21: note: 'b' was declared here
    6 |         int n,x=1,a,b;
      |                     ^

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