Compilare: main.cpp: In function 'long long int caut(long long int, long long int)': main.cpp:43:15: warning: unused variable 'a' [-Wunused-variable] long long a; ^ main.cpp:56:12: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~ main.cpp: In function 'void rez()': main.cpp:18:5: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] if(d*d==x){ ^~ main.cpp:46:15: note: 'sol' was declared here long long sol,mij; ^~~