Compilare: user.cpp: In function ‘bool OK(double)’: user.cpp:65:18: warning: unused variable ‘nr’ [-Wunused-variable] int sol = 0, nr = 0; bool ok = 0; ^ user.cpp: In function ‘int main()’: user.cpp:107:45: warning: variable ‘mod1’ set but not used [-Wunused-but-set-variable] double st = 0, dr = dist1[n], mid; bool mod1 = 0, mod2 = 0; ^ user.cpp:107:55: warning: variable ‘mod2’ set but not used [-Wunused-but-set-variable] double st = 0, dr = dist1[n], mid; bool mod1 = 0, mod2 = 0; ^