Compilare: main.cpp: In function 'bool test(long long int)': main.cpp:44:12: warning: unused variable 'nr1' [-Wunused-variable] int sum, nr1, nr2; ^~~ main.cpp:44:17: warning: unused variable 'nr2' [-Wunused-variable] int sum, nr1, nr2; ^~~ main.cpp: In function 'long long int bs(long long int, long long int)': main.cpp:79:10: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] return sol; ^~~ main.cpp: In function 'int main()': main.cpp:84:26: warning: 'sol' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << bs(1, n + m) - 1; ^