#strings

Resolve a cd command to an absolute path

CodingMedium

▲ 00 solutions

Count substrings whose characters are all distinct

CodingMedium

▲ 00 solutions

Encode and decode strings with length prefixes and count codes

CodingMedium

▲ 00 solutions

Build a target string from the fewest substrings of a source

CodingHard

▲ 00 solutions

First position of any anagram of a pattern in a string

CodingMedium

▲ 00 solutions

Live string editing with a mouse cursor

Coding

▲ 00 solutions

Shortest distance between X and Y in a string

Coding

▲ 00 solutions

Fill a weekly work schedule to an exact hour total

CodingMedium

▲ 01 solution

Word search in a straight line

CodingMedium

▲ 01 solution

Match words against a letter pattern

CodingEasy

▲ 01 solution

Count substrings that use only vowels and contain all five

CodingMedium

▲ 01 solution

Text box formatter

CodingMedium

▲ 01 solution

Template formatter with plural blocks

CodingEasy

▲ 01 solution

Fill placeholders in a template string

CodingMedium

▲ 01 solution

Co-occurring tags for a tag filter

CodingMedium

▲ 01 solution

Bracket the first matching substring in each word

CodingEasy

▲ 01 solution

Rearrange a string so no neighbours match

CodingEasy

▲ 01 solution

Fewest lines to wrap a sentence

CodingEasy

▲ 01 solution

Smallest palindrome from a symmetric string's letters

CodingMedium

▲ 01 solution

Remove parentheses from a plus/minus expression

CodingHard

▲ 01 solution

Shift security units left to protect the most population

CodingMedium

▲ 01 solution

Regex matcher with starred groups

CodingHard

▲ 01 solution

Count recipes a pantry can cover

CodingEasy

▲ 01 solution

Split a string into blocks that match the prefix's letter counts

CodingEasy

▲ 01 solution

Next greater palindrome

CodingMedium

▲ 01 solution

Validate and parse a bracketed list string

CodingEasy

▲ 01 solution

Minimum adjacent swaps to group red balls

CodingMedium

▲ 01 solution

Largest number by changing up to k digits to 5

CodingEasy

▲ 01 solution

Longest ON run with k range flips

CodingHard

▲ 01 solution

Count letters whose lowercase copies all come before uppercase

CodingMedium

▲ 01 solution

Longest valid bracket substring with nesting ranks

CodingHard

▲ 01 solution

Longest substring without three repeats in a row

CodingMedium

▲ 01 solution

Longest proper prefix that is also a suffix

CodingMedium

▲ 01 solution

Longest subsequence of one string that is a substring of another

CodingMedium

▲ 01 solution

Link similar user records by weighted field matches

CodingMedium

▲ 01 solution

Multi-tap keypad: every string a press sequence can spell

CodingMedium

▲ 01 solution

Integer to English words, built up by range

CodingMedium

▲ 01 solution

Highlight categorized phrases in a review

CodingHard

▲ 01 solution

Grep with context lines

CodingMedium

▲ 01 solution

Justify articles to a fixed line width

CodingMedium

▲ 01 solution

Spell a word on a 5-column letter board

CodingMedium

▲ 01 solution

Count reverse-complement DNA strand pairs

CodingMedium

▲ 01 solution

Shortest unique prefix for each word

CodingMedium

▲ 01 solution

Count redundant substrings by vowel and consonant weights

CodingMedium

▲ 01 solution

Fewest append-to-end moves to reverse a binary image

CodingMedium

▲ 01 solution

Evaluate nested add and sub expressions

CodingMedium

▲ 01 solution

Sort words by a custom alphabet

CodingEasy

▲ 01 solution

Count distinct passwords from one substring reversal

CodingEasy

▲ 01 solution

Password similarity under cyclic character bumps

CodingMedium

▲ 01 solution

Caesar cipher with wraparound shifts

CodingEasy

▲ 01 solution

Merchant onboarding CSV validator

CodingMedium

▲ 01 solution

Smallest number from a set of digits, with a lower bound

CodingHard

▲ 01 solution

Longest palindrome from equal-length words

CodingMedium

▲ 01 solution

Deduplicate account sign-ups by email and phone

CodingEasy

▲ 01 solution

Greedy longest-match tokenizer

CodingMedium

▲ 01 solution

Merge known bigrams in a sentence, leftmost first

CodingEasy

▲ 01 solution

Truncate model output at the first stop sequence

CodingMedium

▲ 01 solution

Hybrid run-length and bit-packing codec

CodingMedium

▲ 01 solution