http://www.lydsy.com/JudgeOnline/problem.php?id=4104 网上题解满天飞,我也懒得写了 #include<cstdio> #include<cstring> #include<algorithm> using namespace std; const int N = 200003; int in() { int k = 0, fh = 1; char c = getchar(); for(; c < '0' || c…
http://www.lydsy.com/JudgeOnline/problem.php?id=4104 网上题解满天飞,我也懒得写了 #include<cstdio> #include<cstring> #include<algorithm> using namespace std; const int N = 200003; int in() { int k = 0, fh = 1; char c = getchar(); for(; c < '0' || c…
1.题目大意 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? 给定一个数组的整数,数组中的每个元素都出现了两次.例外地,有一个元素只出现…