foo.cc: In function 'int main()':
foo.cc:35:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   35 |     for(int j=0;j<n1;j++)
      |     ^~~
foo.cc:37:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   37 |         Unique(a,n1);
      |         ^~~~~~
foo.cc:29:31: warning: variable 'c' set but not used [-Wunused-but-set-variable]
   29 |         int a[10000],b[10000],c[10000];
      |                               ^

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