Compilare: main.cpp: In function 'long long int cb(long long int, long long int, long long int)': main.cpp:12:16: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] long long mid,rez; ^~~ main.cpp: In function 'int main()': main.cpp:34:15: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] st=cb(a,c,b)-1; ~~~~~~~~~^~ main.cpp:35:15: warning: 'rez' may be used uninitialized in this function [-Wmaybe-uninitialized] dr=cb(a,c,d)-1; ~~~~~~~~~^~