Hi. What is wrong with this code

Question

I am trying to sum the inputs from the users 5 times , here is the code

#include <iostream>
using namespace std;

int main()
{
int num = 1;
int total = 0;
int number;

while (num <= 5){
cin >> number;
number += num;
num++;

cout << number
}

return 0;
}

Answer 1

https://code.sololearn.com/cvhGQUcVezL7/?ref=app

Answer 2

#include <iostream>

using namespace std;

int main()
{

int x,sum=0,i;

for(i=1;i<=5;i++)
{

cin>>x;
sum = sum+x;
}

cout<< sum <<endl;

return 0;

}