u010570643的专栏

Problem If an element in an MxN matrix is 0, set its entire row and column to 0 Solution public class ZeroRowAndCol{ public static void main(String...strings){ int[][] matrix = new int[

Problem Print all combination of a specified list items. Solution public class Combination{ public static void main(String[] arguments){ int[] list = {1, 2, 3, 4}; int[] prece

Problem Print all permutations of n distinct elements. Solution class Permutation { public static void main(String[] argument) { int[] list = { 1, 2, 3, 4 }; Permutation.Perm(

Problem Calc if two strings are anagrams. For example: hello and elloh are anagrams helo and hello are not anagrams Solution 1. Sort the elements in the lists 2. Compare if two lists are

Problem Check if a string is a rotation of another. For example: Hello and loHel are a rotation pair. Tony and Julia are not a rotation pair. Solution public class RotationOfString{ public

Problem Determine if a string has all unique characters. Solution public class UniqueCharInString{ public static void main(String[] arguments){ String[] testCases= {"hello", "wolrd",