classSolution {publicintsingleNumber(int[] nums) {intres = 0;for(intnum : nums) res ^=num;returnres; } } 类似题目: Single Number III Single Number II Missing Number Find the Difference Find the Duplicate Number 参考资
http://www.programcreek.com/2012/12/leetcode-solution-of-single-number-in-java/ http://www.tutorialspoint.com/java/util/hashset_iterator.htm
Actually this algorithm can be extended to three times, four times, five times etc.. importjava.util.*;publicclassSolution{publicintsingleNumber(int[]A){int[]zero=newint[32];int[]one=newint[32];for(inti=0;i<A.length;i++){for(intj=0;j<32;j++){if(((1<<j)&A[i])!=0){one[...
Java实现 1classSolution {2publicint[] singleNumber(int[] nums) {3intsum = 0;4//将数组所有元素进行异或,最后的结果一定是那两个单一数字的异或结果。看上图示例5//用示例[4,4,6,1]最后的抑或结果就是 6和1异或的结果 76for(inti = 0; i < nums.length; i++) {7sum ^=nums[i];8}9intf...
Java版本: classSolution{publicintsingleNumber(int[]nums){Map<Integer,Integer>ht=newHashMap<Integer,Integer>();for(Integeri:nums){if(ht.containsKey(i)){Integercnt=ht.get(i)+1;ht.put(i,cnt);}else{ht.put(i,1);}}for(Integerkey:ht.keySet()){if(ht.get(key)==1){returnkey;}}return...
Today I removed the accountzh0ukangyangfrom the rating, after first nullifying its results in the Pinely Round 3 (Div. 1 + Div. 2) and banning it. I would like to remind you again: Codeforces insists on the policy of using a single account. Creating and using additional accounts violate...
Java: classSolution{publicint[]singleNumber(int[]nums){Map<Integer,Integer>map=newHashMap<>();intresult[]=newint[2],i=0;for(intnum:nums)map.put(num,map.getOrDefault(num,0)+1);for(Map.Entry<Integer,Integer>item:map.entrySet())if(item.getValue()==1)result[i++]=item.getKey();...
Single Number III Single Number III 首先,上周五没有更新,很是抱歉。因为周五的时候参加黑客马拉松,coding了24小时,实在是没有腾出时间来。我会把那天的题目补上的。 今天是一道位运算的题目,来自LeetCode,难度为Medium,Acceptance为39.4%。与之前的Single Number(回复008查看)是同一系列。
class Solution { public int singleNumber(int[] nums) { int result = 0; for(int i : nums) { result ^= i; } return result; } } 思路:异或运算 leetcode刷题(四) 问题地址:https://leetcode.com/problems/single-number/description 问题描述:在一个数组里只有这数字出现一次,其他数字出现两次,...
解决办法:删除变量中的特殊符号,包括合法的下划线 报错信息: Line 9: PHP Fatalerror: Uncaught TypeError:Argument1passedto Serializer::serializeArray()mustbeofthe type array, null given, calledin/leetcode/precompiled ajax请求和axios请求参数格式问题 ...