标签:ber 出现 color with for lin sum input put
137. Single Number II
Given a non-empty array of integers, every element appears three times except for one, which appears exactly once. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory?
Example 1:
Input: [2,2,3,2] Output: 3
Example 2:
Input: [0,1,0,1,0,1,99] Output: 99
题意:给定一个数组,存在唯一一个数字只出现一次,其他数字出现3次,找到这个只出现一次的数字
代码如下:
/** * @param {number[]} nums * @return {number} */ var singleNumber = function(nums) { let res=0; for(let i=0;i<32;i++){ let sum=0; for(let j=0;j<nums.length;j++){ sum+=(nums[j]>>i)&1; } res|=(sum%3)<<i; } return res; };
标签:ber 出现 color with for lin sum input put
原文地址:https://www.cnblogs.com/xingguozhiming/p/10952730.html