LeetCode 371. Sum of Two Integers (两数之和) Calculate the sum of two integersaandb, but you are not allowed to use the operator+and-. Example: Givena= 1 andb= 2, return 3. 题目标签:Bit Manipulation 这道题目让我们做两数之和,当然包括负数,而且不能用+,-等符号。所以明显是让我们从...
参数pos是从最低位开始的,比如对bitset<32> i(2);那么i[1]就是1。 bitset可以接收unsigned long long作为构造参数,并且可以用to_ulong()方法返回unsigned long,以及to_ullong()方法返回unsigned long long。 第二步,二进制间加如何运算? 二进制的运算很简单,只需考虑11、10、01、00四种情况,但是对加法来说...
日期 题目地址:https://leetcode.com/problems/sum-of-two-integers/description/ 题目描述 Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example: Given a = 1 and b = 2, return 3. 1. 2. 题目大意 不使用...
publicclassSolution{publicintgetSum(inta,intb){if(b==0){returna;}intsum=(a^b);intcarry=(a&b);carry=(carry<<1);returngetSum(sum,carry);}} 自己想复杂了就没继续想,看的答案。 reference: https://discuss.leetcode.com/topic/49764/0ms-ac-java-solution sum 求出不进位的话应该的结果。
leetcode 371. Sum of Two Integers,Calculatethesumoftwointegersaandb,butyouarenotallowedtousetheoperator+and-.Example:Givena=1andb=2,return3.只能位运算:0x01101011^0x00111001---0x01010010 0x0110101
1304 Find N Unique Integers Sum up to Zero 和为零的N个唯一整数 Description: Given an integer n, return any array containing n unique integers such that they add up to 0. Example: Example 1: Input: n = 5 Output: [-7,-1,1,3,4] ...
leetcode-371-Sum of Two Integers 题目描述: Calculate the sum of two integersaandb, but you are not allowed to use the operator+and-. Example: Givena= 1 andb= 2, return 3. 要完成的函数: int getSum(int a, int b) 说明: 1、这道题目其实要实现二进制的加法,我们可以用异或实现,十分...
LeetCode 371.Sum of Two Integers 371.Sum of Two Integers 代码语言:txt 复制 371. Sum of Two Integers Pick One Calculate the sum of two integers a and b, but you are not allowed to use the operator + and -. Example 1: Input: a = 1, b = 2...
(https://discuss.leetcode.com/topic/61315/java-easy-binary-search-solution-8ms) publicclassSolution { publicintsplitArray(int[]nums,intm) { longmax=0;// largest sum longmaxVal=-1;// smallest sum //Arrays.sort(nums); for(inti=0;i<nums.length;i++) ...
这次有点快,有点不可思议,主要是看这个数据是奇数项还是偶数项; Runtime:0 ms, faster than100.00%of Java online submissions for Find N Unique Integers Sum up to Zero. Memory Usage:42.8 MB, less than6.64%of Java online submissions for Find N Unique Integers Sum up to Zero. ...