More Problems

• Write a function to count the total number of characters in a string excluding digits using a hash map.
• Implement a function to find the longest substring that is an anagram of another substring using hashing.
• Create a program to check if a string can be transformed into a valid number using hashing.
• Write a function to find the first character that appears three times in a string using a hash map.
• Given an array, write a program to count the number of even numbers using a hash set.
• Implement a function to find the longest consecutive sequence of numbers in an array using hashing.
• Create a program to check if two strings can be rearranged to form a valid word using hashing.
• Write a function to find the total number of vowels and consonants in a string using hashing.