Can anyone write a code which you can input the real number???

Answer 1

By real numbers, do you mean fractions? Irrational numbers? Square root of non-perfect square numbers?

Answer 2

input real number not integer

Answer 3

What?

Answer 4

something like that

Answer 5

Did you mean numbers with decimal? Then, you should write:

double x;
cin >> x; // if you enter 3.1428
cout << x; // outputs 3.1428
return 0;