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LeetCode383. Ransom letter

2022-04-22 11:41:00 【Want to get into Ali's chicken】

Ideas

The problem is very simple , Will be ransomNote Store the characters in the array , take magazine Characters in are deleted from the array , If there is greater than or equal to 1 Value , It means magazine There is no ransomNote A character in .

Code 

class Solution {
    public boolean canConstruct(String ransomNote, String magazine) {
        int[] temp = new int[26];
        int index = 0;
        for(int i =0;i<ransomNote.length();i++){
            index = ransomNote.charAt(i) - 'a';
            temp[index] += 1;
        }
        for(int j = 0;j<magazine.length();j++){
            index = magazine.charAt(j) - 'a';
            temp[index]-=1;
        }
        for(int i =0;i<26;i++){
            if(temp[i] >=1){
                return false;
            }
        }
        return true;
    }
}

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