I'm unable to solve this... Pls help me!!

Question

The snail climbs up 7 feet each day and slips back 2 feet each night.
How many days will it take the snail to get out of a well with the given depth?

Sample Input:
31

Sample Output:
6

Explanation: Let's break down the distance the snail covers each day:
Day 1: 7-2=5
Day 2: 5+7-2=10
Day 3: 10+7-2=15
Day 4: 15+7-2=20
Day 5: 20+7-2=25
Day 6: 25+7=32
So, on Day 6 the snail will reach 32 feet and get out of the well at day, without slipping back that night.

Answer 1

function main() {
var depth = parseInt(readLine(), 10);
//your code goes here
let d = 0;
let day = 0
while(true)
{
d += 7
day++
if(d >= depth)
break;
else
d-=2;
}
console.log(day)
}

Answer 2

Lothar Yes, sorry i understand & i agree with you. 😅 I'll keep that in mind. I surely don't want someone ruin the fun from me by giving the solution straight so, i shall not do that either.

Answer 3

Ancient Coder well as you can see we have 2 variable d & day where d counts as the snail movements & day just simply log the days it took.

With the d variable we increment 7feet each day & decrement 2feet for the night unless the snail got out of the well which we do by simply putting the if condition.

Hope you understood

Happy Learning ;)

Answer 4

Yep... I need explanation i guess!

Answer 5

Let me know if you need the explanation as well ;)