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[LeetCode]problem 1. Two Sum

一位師兄以前說,現在網際網路上的各種教程都是相互拷貝,一堆垃圾,根本沒有寫的必要。我想想覺得也很有道理。

如果你只是記錄下一個軟體的安裝過程,那還不如去看官方文件。但是如果你加上遇到的坑以及解決辦法,那麼這或許是一篇有意義的文章。如果你只是記錄下一個函式簡單用法,那怎麼不去看官方文件(確實我現在都是去官方文件看)?但是如果你加上一些這個函式常用場景,用起來的漂亮程式碼,內部實現原理,那麼這篇文章也是有意義的。

最近因為找工作,在刷LeetCode。以前我還從網上找題解,後來我直接在DISCUSS上看HOT就好了。那我記錄有何理由?我可以記錄思考過程,可以考慮程式碼的優化,可以展示清晰易讀標準C++11的程式碼

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