Find words that can be formed by characters

Given an integer k and a string str consisting of lowercase English alphabets, the task is to count how many k-character words with or without sexmex.ckm can be formed from the characters of str when repetition is not allowed. Approach: Count the number of distinct characters in str and store it in cntnow the task is to arrange k characters out of cnt characters i.

You have given an array of words and a string S. A word is good if it can be formed by using characters from string S each character can only be used once. Write a program to find out the sum of the length of all good words in the given array. To solve this problem, we have to compare the frequency of each character in the word with the frequency of that character in the string S. Currently you have JavaScript disabled. In order to post comments, please make sure JavaScript and Cookies are enabled, and reload the page. Click here for instructions on how to enable JavaScript in your browser.

Find words that can be formed by characters

A simple solution is to try all characters one by one. If all characters satisfy this condition, return true. Else return false. An efficient solution is to create a frequency array of length Number of possible characters and initialize it to 0. Skip to content. Change Language. Open In App. Related Articles. Solve Coding Problems. Count of strings with frequency of each character at most X and length at least Y Acronym words Transform string str1 into str2 by taking characters from string str3 Longest sub-string having frequency of each character less than equal to k Minimum moves to make count of lowercase and uppercase letters equal Map every character of one string to another such that all occurrences are mapped to the same character Sum of Manhattan distances between repetitions in a String Program to check if all characters have even frequency Minimize removal of non-equal adjacent characters required to make a given string empty Minimize cost to replace all the vowels of a given String by a single vowel Decode a given string by removing duplicate occurrences Check if max occurring character of one string appears same no. Possibility of a word from a given set of characters. Improve Improve. Like Article Like.

The Skyline Problem Word Break

In this problem, we are given two inputs: an array of strings called words and a single string called chars. Our task is to determine which strings in the words array are "good". A "good" string is one that can be completely formed using the characters in chars. Each character in chars may only be used once when forming a word. After identifying all the "good" strings, we must calculate the sum of their lengths and return that sum as the result. The lengths of "cat" and "hat" are 3 and 3, respectively, so the sum is 6. The goal of the problem is to implement a function that can do this calculation for any given words and chars.

In this problem, we are given two inputs: an array of strings called words and a single string called chars. Our task is to determine which strings in the words array are "good". A "good" string is one that can be completely formed using the characters in chars. Each character in chars may only be used once when forming a word. After identifying all the "good" strings, we must calculate the sum of their lengths and return that sum as the result. The lengths of "cat" and "hat" are 3 and 3, respectively, so the sum is 6.

Find words that can be formed by characters

Given a dictionary, a method to do lookup in dictionary and a M x N board where every cell has one character. Find all possible words that can be formed by a sequence of adjacent characters. Note that we can move to any of 8 adjacent characters, but a word should not have multiple instances of same cell. The idea is to consider every character as a starting character and find all words starting with it. All words starting from a character can be found using Depth First Traversal. We do depth-first traversal starting from every cell. We keep track of visited cells to make sure that a cell is considered only once in a word. Note that the above solution may print the same word multiple times. To avoid this, we can use hashing to keep track of all printed words. Instead of generating all strings from the grid and the checking whether it exists in dictionary or not , we can simply run a DFS on all words present in dictionary and check whether we can make that word from grid or not.

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Given a dictionary and a character array, print all valid words that are possible using characters from the array.

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