Codewars: The Hunger Games - Zoo Disaster

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Notes about the Problem: Animals can only eat things beside them.

Animals always eat to their LEFT before eating to their RIGHT. Always the LEFTMOST animal capable of eating will eat before any others.
Any other things you may find at the zoo (which are not listed above) do not eat anything and are not edible.

Can you help me? Why I am getting: "Execution Timed Out"

KATA: https://www.codewars.com/kata/5902bc7aba39542b4a00003d/python

What can I do with IndexError?

My solutions:

animal_dict = {'antelope': 'grass',
               'big-fish': 'little-fish',
               'bug': 'leaves',
               'bear': ['big-fish', 'bug', 'chicken', 'cow', 'leaves', 'sheep'],
               'chicken': 'bug',
               'cow': 'grass',
               'fox': ['chicken', 'sheep'],
               'giraffe': 'leaves',
               'lion': ['antelope', 'cow'],
               'panda': 'leaves',
               'sheep': 'grass'}


def who_eats_who(zoo):
    if zoo == '':
        return ['', '']    #The condition calls for this
    process = []
    units = zoo.split(',') #from str to lst
    process.append(zoo)    #The condition calls for this
    try:
        while True:
            for i, k in enumerate(units):
                if k in animal_dict:
                    #check left eating 
                    if units[i - 1] in animal_dict[units[i]] and i != 0:
                        process.append(f'{units[i]} eats {units[i - 1]}')
                        del units[i - 1]
                        break
                     #check right eating

                    elif units[i + 1] in animal_dict[units[i]]:
                        process.append(f'{units[i]} eats {units[i + 1]}')
                        del units[i + 1]
                        break
                    else:
                        continue
    except IndexError:

        x = ','.join(units)
        process.append(x)
        return process
python
1 Answers

Your break breaks from the for loop, not the while loop. This means you have an infinite loop.

Use this:

        condition = True
        while condition:
            for i, k in enumerate(units):
                if k in animal_dict:
                    #check left eating 
                    if units[i - 1] in animal_dict[units[i]] and i != 0:
                        process.append(f'{units[i]} eats {units[i - 1]}')
                        del units[i - 1]
                        condition = False
                        break
                     #check right eating

                    elif units[i + 1] in animal_dict[units[i]]:
                        process.append(f'{units[i]} eats {units[i + 1]}')
                        del units[i + 1]
                        condition = False
                        break
                    else:
                        continue
user_187469590
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