Technical Articles

Leetcode Solutions

Single Number III

Problem

[View Problem in Leetcode] Find two unpaired numbers in a large number of paired numbers.

Solution

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Add Digits

Problem

[View Problem in Leetcode] Find the digit root.

Solution

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The Skyline Problem

Problem

[View Problem in Leetcode] Find the outer contour of multiple button-aligned rectangles.

Solution

[View Zhiqing's Solution in Leetcode]

K-th Smallest in Lexicographical Order

Problem

[View Problem in Leetcode] Find the k-th smallest number in k-th smallest positive integer in lexicographical order.

Solution

[View Zhiqing's Solution in Leetcode]