/in/foo.cc: In function 'void dfs2(int, int)':
/in/foo.cc:42:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     if(!son[x]) return;dfs2(son[x],tp);
     ^~
/in/foo.cc:42:24: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
     if(!son[x]) return;dfs2(son[x],tp);
                        ^~~~