1: intsingleNumber(int A[], int n) { 2: int left = A[0]; 3:for(int i =1;i< n;i++) 4: { 5: left = left ^ A[i]; 6: } 7: return left; 8: }
另外还有一种做法是利用异或的性质,假设所有的数组为:abcbcda,则 a ^ b ^ c ^ b ^ c ^ d ^ a = a ^ a ^ b ^ b ^ c ^ c ^ d = 0 ^ 0 ^ 0 ^ d = d。 代码如下: classSolution{public:intsingleNumber(vector<int>& nums){intresult =0;for(autonum : nums) result ^= num;retu...
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...
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...
1237-Find-Positive-Integer-Solution-for-a-Given-Equation 1238-Circular-Permutation-in-Binary-Representation 1239-Maximum-Length-of-a-Concatenated-String-with-Unique-Characters 1240-Tiling-a-Rectangle-with-the-Fewest-Squares 1243-Array-Transformation 1304-Find-N-Unique-Integers-Sum-...
https://github.com/Allenxuxu/leetcode-in-go https://github.com/HanTianPeng/go-algorithm https://github.com/kingeasternsun/leetcode-cn https://github.com/aceld/EasySJMS https://github.com/krahets/hello-algo 06-论坛版块 Go夜读 Reddit 的go社区 golang-nuts GopherChina GOCN Forum https://ig...
Perhaps you can use Python to answer some of the questions on Project Euler or Leetcode. Then, the lessons this book shows you are the bells and whistles you can add to make your project more attractive.The lessons in this book do assume a few things about you, such as:...
Perhaps you can use Python to answer some of the questions on Project Euler or Leetcode. Then, the lessons this book shows you are the bells and whistles you can add to make your project more attractive.The lessons in this book do assume a few things about you, such as:...
classSolution{publicint[]singleNumber(int[]nums){intxor=0;for(intn:nums){xor^=n;}// find one different digitintmask=1;for(inti=0;i<32&&(xor&mask)==0;++i){mask<<=1;}int[]res=newint[2];// divide nums into two groups base on the different digitfor(intn:nums){if((n&mask)...