13 Sept 2026•Go / Python / TypeScript•Medium
Image Overlap
Find the largest overlap between two binary images under any translation.
arraymatrix
LeetCode
LeetCode notes
Every LeetCode problem I have solved, with notes. Search by title, or filter by language, problem type and difficulty.
Showing 1-10 of 442 problems
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13 Sept 2026•Go / Python / TypeScript•Medium
Max Increase to Keep City Skyline
Maximize the total height increase while preserving every row and column skyline.
arraygreedymatrix
12 Sept 2026•Go / Python / TypeScript•Easy
Find Numbers with Even Number of Digits
Count the integers whose decimal representation contains an even number of digits.
arraymath
09 Sept 2026•Go / Python / TypeScript•Easy
Add to Array-Form of Integer
Add an integer to a number represented as an array of decimal digits.
arraymath
09 Sept 2026•Go / Python / TypeScript•Easy
Available Captures for Rook
Count pawns an unmoving rook can capture along the four board directions before a bishop blocks it.
arraymatrixsimulation
09 Sept 2026•Go / Python / TypeScript•Easy
Backspace String Compare
Check whether two typed strings are equal after applying backspace characters.
two-pointersstringstacksimulation
09 Sept 2026•Go / Python / TypeScript•Easy
Baseball Game
Evaluate a sequence of baseball scoring operations and return the total score.
arraystacksimulation
09 Sept 2026•Go / Python / TypeScript•Easy
Binary Gap
Find the greatest distance between consecutive set bits in an integer.
bit-manipulation
09 Sept 2026•Go / Python / TypeScript•Easy
Binary Number with Alternating Bits
Determine whether adjacent bits in a positive integer alternate between zero and one.
bit-manipulation
09 Sept 2026•Go / Python / TypeScript•Easy
Binary Prefix Divisible By 5
Report whether each binary-array prefix represents a number divisible by five.
arraybit-manipulation