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seanpgallivan

Fledgling software developer; the struggle is a Rational Approximation.

Location Seattle, WA, USA Joined Joined on  github website

Education

Flatiron School (Software Engineering)

Work

Full Stack Software Engineer

Solution: Longest String Chain

Solution: Longest String Chain

Reactions 3 Comments
4 min read
Solution: Binary Tree Cameras

Solution: Binary Tree Cameras

Reactions 11 Comments
4 min read
Solution: Valid Number

Solution: Valid Number

Reactions 9 Comments
4 min read
Solution: Flatten Binary Tree to Linked List

Solution: Flatten Binary Tree to Linked List

Reactions 15 Comments 1
7 min read
Solution: Ambiguous Coordinates

Solution: Ambiguous Coordinates

Reactions 12 Comments
5 min read
Solution: Range Sum Query 2D - Immutable

Solution: Range Sum Query 2D - Immutable

Reactions 6 Comments
5 min read
Solution: Maximum Points You Can Obtain from Cards

Solution: Maximum Points You Can Obtain from Cards

Reactions 10 Comments 1
3 min read
Solution: Count Primes

Solution: Count Primes

Reactions 14 Comments 1
3 min read
Solution: Construct Target Array With Multiple Sums

Solution: Construct Target Array With Multiple Sums

Reactions 7 Comments 3
5 min read
Solution: Super Palindromes

Solution: Super Palindromes

Reactions 9 Comments
7 min read
Solution: Delete Operation for Two Strings

Solution: Delete Operation for Two Strings

Reactions 12 Comments 2
4 min read
Solution: Convert Sorted List to Binary Search Tree

Solution: Convert Sorted List to Binary Search Tree

Reactions 14 Comments 1
4 min read
Solution: Jump Game II

Solution: Jump Game II

Reactions 9 Comments 1
3 min read
Solution: Non-decreasing Array

Solution: Non-decreasing Array

Reactions 25 Comments
4 min read
Solution: Running Sum of 1d Array

Solution: Running Sum of 1d Array

Reactions 8 Comments
3 min read
Solution: Course Schedule III

Solution: Course Schedule III

Reactions 15 Comments 1
4 min read
Solution: Prefix and Suffix Search

Solution: Prefix and Suffix Search

Reactions 17 Comments 4
5 min read
Solution: Powerful Integers

Solution: Powerful Integers

Reactions 9 Comments
3 min read
Solution: Find First and Last Position of Element in Sorted Array

Solution: Find First and Last Position of Element in Sorted Array

Reactions 20 Comments
4 min read
Solution: Unique Paths II

Solution: Unique Paths II

Reactions 9 Comments
4 min read
Solution: Power of Three

Solution: Power of Three

Reactions 14 Comments 1
3 min read
Solution: Furthest Building You Can Reach

Solution: Furthest Building You Can Reach

Reactions 17 Comments 2
5 min read
Solution: Rotate Image

Solution: Rotate Image

Reactions 12 Comments 1
4 min read
Solution: Critical Connections in a Network

Solution: Critical Connections in a Network

Reactions 10 Comments
5 min read
Solution: Count Binary Substrings

Solution: Count Binary Substrings

Reactions 8 Comments
3 min read
Solution: Brick Wall

Solution: Brick Wall

Reactions 6 Comments
4 min read
Solution: Triangle

Solution: Triangle

Reactions 9 Comments
4 min read
Solution: N-ary Tree Preorder Traversal

Solution: N-ary Tree Preorder Traversal

Reactions 14 Comments
3 min read
Solution: Combination Sum IV

Solution: Combination Sum IV

Reactions 10 Comments 1
5 min read
Solution: Remove Nth Node From End of List

Solution: Remove Nth Node From End of List

Reactions 11 Comments 1
4 min read
Solution: Number of Submatrices That Sum to Target

Solution: Number of Submatrices That Sum to Target

Reactions 10 Comments 1
4 min read
Solution: Remove All Adjacent Duplicates in String II

Solution: Remove All Adjacent Duplicates in String II

Reactions 17 Comments 5
5 min read
Solution: Fibonacci Number

Solution: Fibonacci Number

Reactions 9 Comments
3 min read
Solution: Partition List

Solution: Partition List

Reactions 13 Comments 2
3 min read
Solution: Flatten Nested List Iterator

Solution: Flatten Nested List Iterator

Reactions 11 Comments 1
3 min read
Solution: Beautiful Arrangement II

Solution: Beautiful Arrangement II

Reactions 12 Comments
4 min read
Solution: Deepest Leaves Sum

Solution: Deepest Leaves Sum

Reactions 6 Comments
4 min read
Solution: Longest Increasing Path in a Matrix

Solution: Longest Increasing Path in a Matrix

Reactions 7 Comments
4 min read
Solution: Verifying an Alien Dictionary

Solution: Verifying an Alien Dictionary

Reactions 9 Comments
4 min read
Solution: Letter Combinations of a Phone Number

Solution: Letter Combinations of a Phone Number

Reactions 16 Comments 1
4 min read
Solution: Determine if String Halves Are Alike

Solution: Determine if String Halves Are Alike

Reactions 9 Comments
3 min read
Solution: Minimum Operations to Make Array Equal

Solution: Minimum Operations to Make Array Equal

Reactions 12 Comments
4 min read
Solution: Global and Local Inversions

Solution: Global and Local Inversions

Reactions 11 Comments
3 min read
Solution: Design Circular Queue

Solution: Design Circular Queue

Reactions 14 Comments 1
7 min read
Solution: Longest Valid Parentheses

Solution: Longest Valid Parentheses

Reactions 13 Comments 4
4 min read
Solution: Ones and Zeroes

Solution: Ones and Zeroes

Reactions 19 Comments
4 min read
Solution: Palindrome Linked List

Solution: Palindrome Linked List

Reactions 16 Comments 1
4 min read
Solution: Stamping The Sequence

Solution: Stamping The Sequence

Reactions 8 Comments
5 min read
Solution: Russian Doll Envelopes

Solution: Russian Doll Envelopes

Reactions 9 Comments
4 min read
Solution: Flip Binary Tree To Match Preorder Traversal

Solution: Flip Binary Tree To Match Preorder Traversal

Reactions 7 Comments
4 min read
Solution: Reconstruct Original Digits from English

Solution: Reconstruct Original Digits from English

Reactions 7 Comments
4 min read
Solution: Palindromic Substrings

Solution: Palindromic Substrings

Reactions 9 Comments
3 min read
Solution: Word Subsets

Solution: Word Subsets

Reactions 8 Comments 3
5 min read
Solution: Pacific Atlantic Water Flow

Solution: Pacific Atlantic Water Flow

Reactions 7 Comments
5 min read
Solution: Advantage Shuffle

Solution: Advantage Shuffle

Reactions 9 Comments
4 min read
Solution: 3Sum With Multiplicity

Solution: 3Sum With Multiplicity

Reactions 6 Comments
6 min read
Solution: Vowel Spellchecker

Solution: Vowel Spellchecker

Reactions 15 Comments
5 min read
Solution: Reordered Power of 2

Solution: Reordered Power of 2

Reactions 5 Comments
3 min read
Solution: Design Underground System

Solution: Design Underground System

Reactions 11 Comments
5 min read
Solution: Keys and Rooms

Solution: Keys and Rooms

Reactions 19 Comments
3 min read
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