Compilare: user.cpp: In function ‘void Add()’: user.cpp:56:4: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] if ( nod -> next[S[i] - 'a'] == nullptr ) ^~ user.cpp:58:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘if’ nod = nod -> next[S[i] - 'a']; ^~~