Compilare: user.cpp: In function ‘int main()’: user.cpp:72:22: warning: left shift count >= width of type [enabled by default] ll l = 1, r = 1l << 61, C = -1, m = 0, sol = -1; ^ user.cpp:72:5: warning: unused variable ‘l’ [-Wunused-variable] ll l = 1, r = 1l << 61, C = -1, m = 0, sol = -1; ^ user.cpp:72:12: warning: unused variable ‘r’ [-Wunused-variable] ll l = 1, r = 1l << 61, C = -1, m = 0, sol = -1; ^ user.cpp:72:26: warning: unused variable ‘C’ [-Wunused-variable] ll l = 1, r = 1l << 61, C = -1, m = 0, sol = -1; ^ user.cpp:72:34: warning: unused variable ‘m’ [-Wunused-variable] ll l = 1, r = 1l << 61, C = -1, m = 0, sol = -1; ^