Ransom Note

Problem: Ransom Note

Code in Python:

class Solution(object):
    def canConstruct(self, ransomNote, magazine):
        """
        :type ransomNote: str
        :type magazine: str
        :rtype: bool
        """
        dictionary = {}
        for c in magazine:
            if c in dictionary: dictionary[c] += 1
            else: dictionary[c] = 1

        for c in ransomNote:
            if c not in dictionary or dictionary[c] == 0:
                return False
            dictionary[c] -= 1
        return True