Compilare: user.cpp: In function ‘int main()’: user.cpp:9:21: warning: variable ‘b’ set but not used [-Wunused-but-set-variable] int n,t,i,a = 0,b,d,x, s = 0, max = 200001; ^ user.cpp:9:23: warning: variable ‘d’ set but not used [-Wunused-but-set-variable] int n,t,i,a = 0,b,d,x, s = 0, max = 200001; ^