K Unique Characters

A number representing the count of substrings with at most K unique characters. A vast library of videos created by our team of in-house developers to help you explore new concepts understand how to solve a challenge or ace any upcoming interview.

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Sort the characters acc to the frequency and pick top K characters.

K unique characters. In this OpenGenus article we will be solving Find number of substrings with exactly k distinct characters problem. S aabacbebebe K 3 Output. Given a string S consisting of N characters and a positive integer K the task is to count the number of substrings having at least K distinct characters.

S aabacbebebe K 3 Output. 1. Aba k 2 Output.

If str is 2aabbacbaa there are several substrings. Last Updated. Abcdd with length 5 Input.

Abcddefabc K 4 Output. 2 distinct characters bc. Possible substrings of length K 2 are ab.

The longest substring is ababb as a is repeated 2 times and b is repeated 3 times. In this problem we are given a string and our job is to count the total number of substrings of the given string that contains exactly k distinct characters. The longest substring is aaa as a is repeated 3 times.

If there is no possible substring then print -1. Count Of Substrings Having At Most K Unique Characters. That all contain 2 unique characters namely.

Longest substring with 4 most unique characters is. Cbebebe is the longest substring with K distinct characters. 3 Possible substrings are ab ba aba Input.

Cdeeeeddded with length 11 Input. This is a list of characters with Unicode code-points. Simulated timed interviews that will help you prepare and ace your next interview whether its in-person or remote.

Given a string you need to print the size of the longest possible substring that has exactly K unique characters. S aaabb k 3 Output. This solution would scale for K unique characters.

Substrings generate_substringsS k3 longest -1 for contender in substrings. Aaaabbbb K 4 Output. S abcca K 3 Output.

Aaabbb k 3 There are only two unique characters thus show error message. 2 Possible substrings are ab bc Input. Now iterate over the array and check if we need to save that character.

Given string str of the lowercase alphabet and an integer K the task is to count all substrings of length K which have exactly K distinct characters. Given a string you need to print the size of the longest possible substring that has exactly K unique characters. The number of characters must be less than k if unique_chars k.

If no substring exists that contains exactly k distinct characters then. In the string because the first character will be the integer k. The substring will start from the second position.

We dont have a longest. Aa k 1 Output. Longest contender Case 2.

The task is to find the count of subarrays such that each subarray has exactly K distinct elements. Unique_chars lensetcontender Condition 1. If there is no possible substring then print -1.

Longest substring with 3 most unique characters is. Not enough unique character. 1.

Arr 1 2 3 4 5 K 1 Output. There are 143859 characters with Unicode 130 covering 154 modern and historical scripts as well as multiple symbol setsAs it is not technically possible to list all of these characters in a single Wikipedia page this list is limited to a subset of the most important characters for English-language readers with links to other pages. 7 2 1 1 2 2 1 1 6 2 1 2 1 2 1 and 2 1 2 1 are the only valid subarrays.

If no such substring exists print -1. Count of distinct characters 3. Given a string write an algorithm to find the longest substring with at most K charactersExample.

You are given a string str and a number K. Access our premium code compilers with any membership. Cbebebe is the longest substring with K distinct characters.

The new string is longer elif len. The substrings that contain at least K 3 distinct characters are. You are given a string str and a number K.

Str abcc K 2 Output. That contains k unique characters where k will be the first character. Emoji Hearts Currencies Arrows Stars and many others Copied.

Aabbaacdeeeeddded K 3 Output. Find copy and paste your favorite characters. Arr 2 1 2 1 6 K 2 Output.

Abc k 2 Output. S consists of only lowercase English letters. S ababbc k 2 Output.

You have to find length of the longest substring that has exactly k unique characters. Now we do if longest -1. Given a string of lowercase alphabets count all possible substrings not necessarily distinct that has exactly k distinct characters.

2 distinct characters cc. Aabba ac cb ba. Lets do that.

You have to find the count of substrings of the given string that contains at most K unique characters. Aabbcc k 3 There are substrings with exactly 3 unique characters aabbcc abbcc aabbc abbc Max is aabbcc with length 6. A number representing length of the longest K unique characters substring.

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