my-leetcode-problems/ransomNote.java at main · pranav-326/my-leetcode-problems · GitHub

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import java.util.HashMap;

public class ransomNote {
    public static boolean canConstruct(String ransomNote, String magazine) {
        HashMap<Character, Integer> m1=new HashMap<>();
        HashMap<Character, Integer> m2=new HashMap<>();
        for (char c : ransomNote.toCharArray()) {
            m1.put(c, m1.getOrDefault(c, 0)+1);
        }
        for (char c : magazine.toCharArray()) {
            m2.put(c, m2.getOrDefault(c, 0)+1);
        }
        for (char c : m1.keySet()) {
            if (m1.get(c)>m2.getOrDefault(c, 0)) {
                return false;
            }
        }
        return true;
    }
    public static void main(String[] args) {
        boolean b=canConstruct("bg", "efjbdfbdgfjhhaiigfhbaejahgfbbgbjagbddfgdiaigdadhcfcj");
        System.out.println(b);
    }

}