foo.cc: In function 'void print()':
foo.cc:67:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   67 |      for (int i=lans-1;i>=0;i--) cout<<ans[i];cout<<endl;
      |      ^~~
foo.cc:67:47: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   67 |      for (int i=lans-1;i>=0;i--) cout<<ans[i];cout<<endl;
      |                                               ^~~~

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