Compilare: user.cpp: In function ‘var my_pow(var, var)’: user.cpp:41:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(var i = 0ULL; (1 << i) <= b; i++){ ^ user.cpp: In function ‘void solve()’: user.cpp:52:18: warning: unused variable ‘value’ [-Wunused-variable] var x, v, z, value; ^