The Snail in the Well

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.

Hint: You can use a loop to calculate the distance the snail covers each day, and break the loop when it reaches the desired distance.

Answer 1

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Answer 2

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