Compilare: user.cpp: In function ‘void citire()’: user.cpp:16: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:17: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘int binary_search(int, int, int)’: user.cpp:30: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp: In function ‘int main()’: user.cpp:63: warning: format ‘%d’ expects type ‘int’, but argument 3 has type ‘long long int’