foo.cc: In function 'int main()':
foo.cc:7:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    7 |  for(int i=1;i<=n;i++)
      |  ^~~
foo.cc:9:6: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
    9 |      cout<<s<<"\n";
      |      ^~~~
foo.cc:9:15: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
    9 |      cout<<s<<"\n";
      |               ^~~~

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