The snail crawls up the column. During the day it crawls up some distance. During the night she sleeps, so she slides down for some distance (less than crawls up during the day).

Your function takes three arguments:
1. The height of the column (meters)
2. The distance that the snail crawls during the day (meters)
3. The distance that the snail slides down during the night (meters)

Calculate number of day when the snail will reach the top of the column.

Difficulty: introductory

Starter code:

def snail(column, day, night):
	

Solutions:
from math import ceil


def snail(column, day, night):
    return max(ceil((column-night)/(day-night)), 1)

snail=lambda c,d,n:-(min(0,d-c)//(d-n))+1

def snail(height, day, night):
    n,r = divmod(max(0,height-day), day-night)
    return n + 1 + (r!=0)

def snail(column, day, night):
    count = 0
    some = True
    while some:
        column = column - day
        if column <= 0:
            some = False
        column += night
        count += 1

    return count

from numpy import ceil
def snail(column, day, night):
    return max(ceil((column-day)/(day-night)), 0) + 1

def snail(column, day, night):

    heightUpColumn = 0
    daysPassed = 1
    
    while heightUpColumn < column:
        heightUpColumn += day
        if heightUpColumn < column:
            heightUpColumn -= night
            daysPassed += 1
        elif heightUpColumn >= column:
            return daysPassed
            


def snail(column, day, night):
    total = 0
    when = True
    n = 0
    while column > total:
        if when:
            total += day
            when = False
            n += 1
        else:
            total -= night
            when = True
    return n

snail=lambda c,d,n:max([i for i in range(c) if i*d-(n*i-n)>=c][0],1)

def snail(column, d, n):
    k = 1
    v = d
    while v < column:
        v -= n
        v += d
        k += 1
    return k

from math import ceil
def snail(column, day, night):
    return ceil((column-night)/(day-night)) if column - day > 0 else 1