foo.cc: In function ‘int main()’:
foo.cc:9:1: warning: this ‘else’ clause does not guard... [-Wmisleading-indentation]
    9 | else m=n/a+1;min=p*m;
      | ^~~~
foo.cc:9:14: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘else’
    9 | else m=n/a+1;min=p*m;
      |              ^~~

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