Today I spent some time on practicing coding. When I was trying to solve a problem about finding paths with elements whose sum equals to a specified value, given a binary tree and a value, I stumble against some unknown problems.

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# Tag: Coding

## Trick on Appending a List to Another List in Python

## K Sum Problem

Today I spent some time on practicing coding. When I was trying to solve a problem about finding paths with elements whose sum equals to a specified value, given a binary tree and a value, I stumble against some unknown problems.

[……]

K sum problems are the sort of problems that asking you to find the k numbers whose sum is the target when given a number array or list. On LeetCode, there are two sum and three sum problems. Today, I am gonna discuss such kind of problems.

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