Compilare: main.cpp: In function 'bool rezolva(long long int)': main.cpp:39:20: warning: NULL used in arithmetic [-Wpointer-arith] while (s[poz]!=NULL) ^~~~ main.cpp:35:10: warning: unused variable 'rez' [-Wunused-variable] bool rez; ^~~ main.cpp: In function 'int main()': main.cpp:99:21: warning: NULL used in arithmetic [-Wpointer-arith] while(s[j]!=NULL) ^~~~ main.cpp:119:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0; i<raspuns.size(); i++) ~^~~~~~~~~~~~~~~