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#20. Valid Parentheses [LeetCode Grind 75 in Java]

Oct 12, 20231 min read

[Problem Link] https://leetcode.com/problems/valid-parentheses/ · class Solution { public boolean isValid(String s) { Stack<Character> st =...

#20. Valid Parentheses [LeetCode Grind 75 in Java]

#125. Valid Palindrome [LeetCode Grind 75 in Java]

Oct 12, 20231 min read

[Problem Link] https://leetcode.com/problems/valid-palindrome/ · class Solution { public boolean isPalindrome(String s) { int n =...

#125. Valid Palindrome [LeetCode Grind 75 in Java]

#242.Valid Anagram [LeetCode Grind 75 in Java]

Oct 12, 20231 min read

[Problem Link] https://leetcode.com/problems/valid-anagram/ · class Solution { public boolean isAnagram(String s, String t) { //treated as...

#242.Valid Anagram [LeetCode Grind 75 in Java]

#383.Ransom Note [LeetCode Grind 75 in Java]

Oct 8, 20231 min read

[Problem Link] https://leetcode.com/problems/ransom-note/ · class Solution { public boolean canConstruct(String ransomNote, String magazine) { ...

#383.Ransom Note [LeetCode Grind 75 in Java]

#409.Longest Palindrome [LeetCode Grind 75 in Java]

Oct 8, 20231 min read

[Problem Link] https://leetcode.com/problems/longest-palindrome/ · class Solution { public int longestPalindrome(String s) { int[] count =...

#409.Longest Palindrome [LeetCode Grind 75 in Java]

#67.Add Binary [LeetCode Grind 75 in Java]

Oct 8, 20231 min read

[Problem Link] https://leetcode.com/problems/add-binary/ · class Solution { public String addBinary(String a, String b) { int ptra =...

#67.Add Binary [LeetCode Grind 75 in Java]