More Problems

• Given a string, write a program to count the number of occurrences of a specific character using a hash map.
• Create a function that checks if a string contains balanced parentheses using hashing.
• Write a program to find the longest substring that contains the same character using hashing.
• Implement a function to count the total number of consonants in a string using a hash map.
• Create a program to check if a list of integers contains any duplicates using hashing.
• Write a function to find the first unique integer in an array using a hash map.
• Given a list of integers, write a program to find the count of negative numbers using a hash map.
• Implement a function to find the first character that appears three times in a string using a hash map.