# LeetCode All Problems Solution Index: Search, Sum and Tree Problems

## Overview

I have summarized the solutions to LeetCode problems by organizing them into closely related categories (Search, Sum and Tree) and give tree index page for quick references.

## LeetCode All Problems Solution Index: Search, Sum and Tree Problems

1. Search Problem: usually Binary search, Sorted array
2. Sum Problems: All of the following could be solved in a consistent recursive manner!
3. Tree Related Problems: try different perspectives including bottom up and top down and other, ususaly, recursive function could give compact solution, the difficulty increases when combining with other tricks like dynamic programming

## Summary

I have summarized the solutions to LeetCode problems by organizing them into closely related categories (Search, Sum and Tree) and give tree index page for quick references. I will keep updating the content as well as this index page as time goes. Please feel free to leave any comments.

Written on March 26, 2015