Linker Script
- By
Wayne
When compiling source files into executable files, GCC compiles source files into object files. Then, the linker links the object files into a executable file with a linker script.
x86 Memory Map
- By
After the x86 PC boots, it will be in real mode. At this time, we can access memory below 1 MB. However, the BIOS also uses some memory. Therefore, we must know which areas the BIOS occupies in order to avoid them.
72. Edit Distance
- By
When solving this problem, we must first observe how word1 becomes word2. Taking Example1 as an example, the lower left figure lists the distance from “horse” to “ros”.
1048. Longest String Chain
- By
In this problem, wordA is a predecessor of wordB which means we only need to insert a letter in wordA to make it the same as wordB.
Priority Queue & Heap
- By
Priority queue is a very useful data structure. It can provide the maximum or minimum value in constant time.
Binary Search Tree
- By
Binary search tree (BST) is a binary tree. It provides some useful operations including search, insert, delete, minimum, maximum, successor and predecessor.
1105. Filling Bookcase Shelves
- By
What this problem needs to solve is to calculate the minimum possible height of the bookshelf after placing all the books into the bookshelf.
62. Unique Paths
- By
This problem asks us to calculate the total number of all possible paths from the top-left corner to the bottom-right corner. We can observe that to go from the top-left corner to the bottom-right corner, the robot can only go right or down.
