/in/foo.cc: In function 'bool cmp(P, P)':
/in/foo.cc:7:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(p.mark.size()==q.mark.size())
     ^~
/in/foo.cc:10:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         return p.mark>q.mark;
         ^~~~~~