foo.cc: In function 'int main()':
foo.cc:14:43: warning: 'y' may be used uninitialized [-Wmaybe-uninitialized]
   14 |         cout<<fixed<<setprecision(0)<<(x-y*pow(10,c-1))*10+y;
      |                                          ~^~~~~~~~~~~~
foo.cc:5:21: note: 'y' was declared here
    5 |         long long x,y,xt,c=0;cin>>x;
      |                     ^

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