Compilare: main.cpp: In function 'void nrdiv(long long unsigned int)': main.cpp:20:9: warning: unused variable 'rez' [-Wunused-variable] int rez = 1; ^~~ main.cpp: In function 'void nrdivk(long long unsigned int, long long unsigned int)': main.cpp:59:9: warning: unused variable 'rez' [-Wunused-variable] int rez = 1; ^~~ main.cpp: At global scope: main.cpp:98:7: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type] main() ^