问题: Given an array of integers, every element appears three times except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? Single Number I 升级版,一个数组中其它数出现了…
问题: Given an array of integers, every element appears twice except for one. Find that single one. Note: Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? 分析: 数组中的数除了一个只出现了一次之外,其它都出现了两次, 要找出只出…
［抄题］: Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, find the duplicate one. Example 1: Input: [1,3…
思路分析:任何一个数字异或它自己都等于0,根据这一特性,如果从头到尾依次异或数组中的每一个数字,因为那些出现两次的数字全部在异或中抵消掉了,所以最终的结果刚好是那些只出现一次的数字. 代码如下: #include "stdafx.h" #include <stdio.h> int findNotDouble(int a[], int n) { ]; int i; ; i < n; ++i) result ^= a[i]; return result; } int ma…
题目: Given an array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtime complexity. Could you implement it without using extra memory? 中文(给定一个整数的数组,每个整数都出现了两次,只有一个出现了一次,找到它 建…
Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n] inclusive that do not appear in this array. Could you do it without extra space and in O(n) runtime?…
找出数组中的单身狗: 1. OddOccurrencesInArray Find value that occurs in odd number of elements. A non-empty zero-indexed array A consisting of N integers is given. The array contains an odd number of elements, and each element of the array can be paired with a…
