HackerRank: Hash Tables- Ransom Note

2020 第一天

感動自己的堅持阿!!!

新的一年 一定很美麗~~~~~~

Hash Tables: Ransom Note

• 

• python

  • https://thispointer.com/python-how-to-check-if-a-key-exists-in-dictionary/

# Complete the checkMagazine function below.
def checkMagazine(magazine, note):
    dict_m = {}
    yes_or_No = 'Yes'
    for word in magazine:
        # if dict_m has key word and not care of the value is None or not
        if dict_m.get(word, -1) != -1:
            dict_m[word] += 1 
        else:
            dict_m[word] = 1
    
    for note_word in note:
        if dict_m.get(note_word, -1) != -1 and dict_m.get(note_word) >= 1:
            dict_m[note_word] -= 1
        else:
            yes_or_No = 'No'
    
    print(yes_or_No)