Topic: Hashing-question / Level: Intermediate

• 321. Write a program to find the maximum length of a substring that contains only lowercase letters using hashing.
• 322. Implement a function to check if a string can be formed by rearranging another string with limited characters using hashing.
• 323. Create a hash table to store the mapping of project names to their deadlines.
• 324. Write a program to find the total number of unique words in a text using hashing.
• 325. Implement a function to find the longest common prefix among an array of strings using hashing.
• 326. Create a hash map to track the number of subscriptions to different channels.
• 327. Write a program to find the longest substring that contains only consonants using hashing.
• 328. Implement a function to check if a string contains balanced braces using hashing.
• 329. Create a hash table to store the mapping of product names to their stock quantities.
• 330. Write a program to find the maximum length of a contiguous subarray that sums to a specific target using hashing.
• 331. Implement a function to find all unique triplets in an array that sum to a target value using hashing.
• 332. Create a hash map to track the number of messages sent on different platforms.
• 333. Write a program to determine if two strings are rotations of each other using hashing.
• 334. Implement a function to find the total number of unique numbers in a list using hashing.
• 335. Create a hash table to store the mapping of country names to their currencies.
• 336. Write a program to find the maximum length of a substring that contains at least one uppercase letter using hashing.
• 337. Implement a function to check if a string can be rearranged to form a valid anagram using hashing.
• 338. Create a hash map to track the number of views on different videos.
• 339. Write a program to find the first character that appears twice in a string using hashing.
• 340. Implement a function to find all distinct substrings of a given string using hashing.
• 341. Create a hash table to store the mapping of book titles to their publication years.
• 342. Write a program to find the total number of unique phrases in a paragraph using hashing.
• 343. Implement a function to check if a string contains all digits using hashing.
• 344. Create a hash map to track the number of items in a shopping cart for different users.
• 345. Write a program to find the longest substring that contains at least two different characters using hashing.
• 346. Implement a function to determine if a string is a valid number, including decimals and signs, using hashing.
• 347. Create a hash table to store the mapping of recipe names to their ingredients.
• 348. Write a program to find the maximum length of a substring that contains at least one digit using hashing.
• 349. Implement a function to check if a string is a valid expression of numbers and operators using hashing.
• 350. Create a hash map to track the number of interactions on different posts.

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