LeetCode 34. Find First and Last Position of Element in Sorted ArrayLeetCode-34 Given an array of integers nums sorted i

浮点数的表示 IEEE 754 单精度浮点数 C0 A0 00 00 H 的值C0 A0 00 00 = 1100 0000 1010 0000 0000 0000 0000 0000数符：1为负数尾数部分：010 0000 0

LeetCode 504. Base 7LeetCode-504 Given an integer num, return a string of its base 7 representation. Example 1:Input: nu