foo.cc: In function 'int main()':
foo.cc:7:22: warning: 'n' is used uninitialized [-Wuninitialized]
    7 |         for(int i=1;i<=n;i++)
      |                     ~^~~
foo.cc:6:9: note: 'n' was declared here
    6 |     int n,a[101],b[101];
      |         ^
foo.cc:12:29: warning: 'b' may be used uninitialized [-Wmaybe-uninitialized]
   12 |                 if(a[i]==b[i])
      |                          ~~~^
foo.cc:6:18: note: 'b' declared here
    6 |     int n,a[101],b[101];
      |                  ^

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