Please help explain this

Question

int count = 1;

for(int i = 0; i <= 99; i++){
for(int j = 0; j <= 99; j++){
count++;
}
}

cout << count;

Answer 1

I see that you have started the V+ course? Do you understand for-loops?

The inner loop incremebts count by 1 100times. The outer loop runs 100 times, that means the inner loop runs 100times, 100*100. And 1 more for.the initial value.

Run the code and output the steps inside the loops to see what is going on.

Answer 2

100*100+1

The inner loop run 100times, the outer loop as well. The initial value of count is 1.

Answer 3

Read my initial reply:
The inner loop run 100times, the outer loop as well. The initial value of count is 1.
You can see that count is increased by 1 each time.

Answer 4

Yeah I've read it, you said it's 100*100 meaning 100 X 100 right?, So since count is initially 1 that means 1000 gets added to it?

Am I right sensei Lisa?

But then a little bit something again, why is it 100*100 instead of 100 + 100?

Thanks

Answer 5

Okay thanks allot for all the help Lisa, I certainly understand loops thoroughly so let me give the code another angry look and see😂

Thanks once again. Definitely gonna upvote ur answer

Answer 6

I still don't understand Lisa, the result it gives is 100001 so how did the program arrive at that?

Answer 7

This is exactly what I explained in my reply? And ut is 10001, not 100001, run the code to see it yourself.

Answer 8

Actually you are using nested For loop which means Loog within loop. So here you are initialised an integer type variable "count" with 1.
After that a for loop which is starting from 0 to 99 which mean outer loop will run 100 times but on every iteration of outer loop the inner loop will iterate 100 times which will add 1 every time to variable count. (count = count + 1).Once inner loop is ended the flow will go again to the outer loop untill the condition become false.
So number of iteration will be 100*100+1

Answer 9

I've already ran the code and saw the result, and you didn't explain how tf the program outputs 10001