LeetCode（数据库）- Build the Equation
Posted 程序员牧码
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了LeetCode（数据库）- Build the Equation相关的知识，希望对你有一定的参考价值。
题目链接：点击打开链接
题目大意：略。
解题思路：注意 GROUP_CONCAT([DISTINCT] 连接字段 [Order BY ASC/DESC 排序字段] [Separator '分隔符'])。
AC 代码
WITH t AS(SELECT power, factor, CONCAT(IF(factor > 0, '+', '-'), ABS(factor), IF(power = 0, '', IF(power = 1, 'X', CONCAT('X^', power)))) equation FROM Terms)
SELECT CONCAT(GROUP_CONCAT(equation ORDER BY power DESC SEPARATOR ''), '=0') equation
FROM t以上是关于LeetCode（数据库）- Build the Equation的主要内容，如果未能解决你的问题，请参考以下文章
已解决：could not find the task ‘g++ build active file，leetcode算法ACM编译调试
LeetCode（数据库）- The Airport With the Most Traffic
Errors occurred during the build. Errors occurred during the build. Errors running builder 'Java
LeetCode（数据库）- The Category of Each Member in the Store
LeetCode（数据库）- The Number of Seniors and Juniors to Join the Company
LeetCode（数据库）- The Number of Seniors and Juniors to Join the Company