foo.cc: In function 'int main()':
foo.cc:21:3: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   21 |   for(int i=1;i<=n-k;i++)
      |   ^~~
foo.cc:23:7: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   23 |       return 0;
      |       ^~~~~~

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