foo.cc: In function 'int main()':
foo.cc:25:23: warning: 'b' may be used uninitialized [-Wmaybe-uninitialized]
   25 |         cout<<a<<" "<<b<<endl;
      |                       ^
foo.cc:5:30: note: 'b' was declared here
    5 |         int n,ans=0,ans1=0,a,b;
      |                              ^
foo.cc:25:18: warning: 'a' may be used uninitialized [-Wmaybe-uninitialized]
   25 |         cout<<a<<" "<<b<<endl;
      |                  ^~~
foo.cc:5:28: note: 'a' was declared here
    5 |         int n,ans=0,ans1=0,a,b;
      |                            ^

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