I can't understand how the output of this code is 30..

Question

#include <iostream>
using namespace std;

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

while (num <= 5) {
cin >> number;
total += number;
num++;
}
cout << total << endl;

return 0;
}

Answer 1

Explanation 👇🏻

1<=5
Cin>>number (which is 6)

Total=total+number =(0+6)=6 (increment 1)

2<=5
Total=total+number=(6+6)=12( increment 2)

3<=5
Total=total+number=(12+6)=18(increment 3)

4<=5
Total=total+number(18+6)=24(increment 4)

5<=5
Total=total+number(24+6)=30 (stop execution when condition false at num=6) and print 30.

Answer 2

Thank you so much

Answer 3

But how.? I put the input 6 but I don't understand how the output is 30.. I know it's basic but I am having trouble reading and understanding the code

Answer 4

So it's adding 6 five times ?? Because 6 is greater than 5??

Answer 5

Not because 6 is greater than 5. It's adding because you are giving 6 as input. If you 7 as input then output will be 35 because then it will add 7.
When you enter the input, it will get stored in your variable "number" and the next line
total += number is equivalent to total = total + number, that means each time it add number into total and value of total keep increasing.

Answer 6

As you can see loop will run 5 times for value of num = 1,2,3,4,5 after it will terminate. Since you are giving 6 as input for 5 times and adding them to total. So value of total will keep increasing by 6 each time loop execute.
After 5 iterations of loop value of total =30, that's why output is 30.

Answer 7

Hii

Answer 8

Hii

Answer 9

Hi