Compilare: main.cpp: In function 'char* getWord(int)': main.cpp:27:12: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] w[5] = NULL; ^~~~ main.cpp:26:10: warning: address of local variable 'w' returned [-Wreturn-local-addr] char w[wordLen]; ^ main.cpp: In function 'int main()': main.cpp:66:31: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null] wo[wordLen - 1] = NULL; ^~~~