LeetCode 760. Find Anagram Mappings in Java

In this post we will solve LeetCode 760. Find Anagram Mappings problem using the Java programming language.

You are given two integer arrays nums1 and nums2 where nums2 is an anagram of nums1. 
Both arrays may contain duplicates.

Return an index mapping array mapping from nums1 to nums2 where 
mapping[i] = j means the ith element in nums1 appears in nums2 at index j. 
If there are multiple answers, return any of them.

An array a is an anagram of an array b means b is made by randomizing the order of the elements in a.

Constraints:

o 1 <= nums1.length <= 100
o nums2.length == nums1.length
o 0 <= nums1[i], nums2[i] <= 10^5
o nums2 is an anagram of nums1.

Related Topics:

o Array
o Hash Table

We are provided with two int[] holding two anagrams. We need to write a function that returns an index mapping array mapping from nums1 to nums2 where mapping[i] = j means the ith element in nums1 appears in nums2 at index j. Continue reading “LeetCode 760. Find Anagram Mappings in Java”

Permutation in String

Good morning! Hope you had a nice weekend. My wife and I did. We did some shopping, visited our son, and baked. For some reason last winter we did little baking. Yesterday morning after completing a two-hour block in my home office, I went up, prepared coffee and sat with my wife to chat. The subject of baking came up. Baking is both knowledge and art. In general when cooking or baking we tend not to follow recipes. Yesterday we collected the ingredients for raisin cinnamon bread around 09:00 AM. I got the dough ready around 10:00 AM. The dough proofed for a few hours and early afternoon, while my wife was preparing an avocado with tomatoes and roast beef salad, I buttered four bread molds, poured in the bread batter, waited for about 15 minutes (should be  an hour), and baked the cinnamon raisin bread. It turned out very good, but next week, I will let the bread proof for an hour in the molds. While the bread was still hot, we had two slices each with soft butter and grape jelly made by our daughter in law. It was delicious and to be honest with you, it does not require much work. Continue reading “Permutation in String”

Valid Anagram

sample_anagramIt seems like anagrams are becoming quite popular in challenges. What is an anagram? The edited definition from Wikipedia follows:

“An anagram is direct word switch or word play, the result of rearranging the letters of a word or phrase to produce a new word or phrase, using all the original letters exactly once. Any word or phrase that exactly reproduces the letters in another order is an anagram”. Continue reading “Valid Anagram”