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Articles tagged with #string
You are given a string s. Your task is to remove all digits by doing this operation repeatedly: Delete the first digit and the closest non-digit character to its left. Return the resulting string after removing all digits. LeetCode Problem - 3147 c...
Given a string s, return true if s is a good string, or false otherwise. A string s is good if all the characters that appear in s have the same number of occurrences (i.e., the same frequency). LeetCode Problem - 1941 class Solution { public boo...
International Morse Code defines a standard encoding where each letter is mapped to a series of dots and dashes, as follows: 'a' maps to ".-", 'b' maps to "-...", 'c' maps to "-.-.", and so on. For convenience, the full table for the 26 letters ...
Given two binary strings a and b, return their sum as a binary string. LeetCode Problem - 67 import java.math.BigInteger; class Solution { // Method to add two binary strings public String addBinary(String a, String b) { // Convert t...
Given a string s of zeros and ones, return the maximum score after splitting the string into two non-empty substrings (i.e. left substring and right substring). The score after splitting a string is the number of zeros in the left substring plus the ...
Given an integer array nums that does not contain any zeros, find the largest positive integer k such that -k also exists in the array. Return the positive integer k. If there is no such integer, return -1. LeetCode Problem - 2441 import java.util.Ha...
