AND 运算符
SQL的AND运算符用于根据多个条件筛选记录,确保所有条件都为TRUE才返回记录。下面是AND运算符的基本语法:
SELECT column1, column2, ...
FROM table_name
WHERE condition1 AND condition2 AND condition3 ...;column1, column2,等是您要选…
题目链接
题目 A subarray is a continuous part of array.
Yarik recently found an array a of n elements and became very interested in finding the maximum sum of a non empty subarray. However, Yarik doesn’t like consecutive integers with the same parity, s…
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