#数组和字符串
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Min Difference 2 Array
给定两个整数数组(第一个是数组 A,第二个是数组 B),在数组 A 中取 A[i],数组 B 中取 B[j],A[i] 和 B[j]两者的差越小越好(|A[i] - B[j]|)。返回最小差。
Move Zeroes
Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of
Multiply Strings
Given two numbers represented as strings, return multiplication of the numbers as a string.