Im having a problem making my code give in an input

Question

I wrote a code fir example
Int main()
{
Int a,b,c,d
Cout<<"Enter a number:"
Cin>>a.....
In the above code,the cin is not working in my code

Answer 1

LoaftoPVP It's better for one to use "\n" rather than the endl manipulator for performance reasons.
std::endl is slower since it carries an overhead of several unnecessary function calls

Answer 2

It seems the issue is that you have forgotten to put semi-colons after the int value and the cout command.
int main()
{
int a, b ,c, d;
cout<<"Enter a number: ";
cin>>a;
}

This code is a bit better, I hope.

Answer 3

Your code is perfectly fine when it's running in a third party software like Visual Studio Code or Visual Studio Community 2019. I'd recommend using these when running code as it has more functions. Also, just a suggestion, try using << endl; at the end of each line instead of using \n. This is just my personal preference, but it's up to you. Once again, your code doesn't have any issues, I just think the playground sometimes doesn't work.

Answer 4

Here's the revised code:

#include <iostream>
using namespace std;

int main() {
int a, b, c, d;
cout << "Enter variable A: ";
cin >> a;
cout << "Enter variable B: ";
cin >> b;
cout << "Press 1 for adding two variables." << endl;
cout << "Press 2 for subtracting two variables." << endl;
cin >> c;

switch (c)
{
case 1:
d = a + b;
cout << d;
break;
case 2:
d = a - b;
cout << d;
break;

default:
cout << "Wrong input.";
}
}

I just think that the playground doesn't work that well sometimes.

Answer 5

Oh wait, have you tried separating the inputs? Like:
1
2
1
That equals to 3.
Another example:
1
2
1
That equals -1.

Answer 6

Try Cxxdroid

Answer 7

Sure i did all that but after running the code it just gives...let me put the code
https://code.sololearn.com/c63SlmGUH0Gp/?ref=app

Answer 8

True, because im using my android phone kindly recomend the best software to use using andrpid phone or a computer

Answer 9

Michael Kamau Your program is okay.
The problem you're describing comes from the fact that sololearn's compiler is not interactive.Hence you need to provide the inputs all at once like this
5 6 1 //5 will be a,6 b and 1 c.
Or
5
6
1

Answer 10

Anthony maina what is the best app i can use that has the best compiler if im using an android phone without a computer

Answer 11

That is if at all there is