方案一: 排序后用 two pointers求解 class Solution { public: typedef struct { int index; int value; }sort_st; static bool compare(sort_st a,sort_st b) { return a.value<b.value; } vector<int> twoSum(vector<int>& nums, int target) { int j = nums.size()-1; vector<int> idx; i...
publicclassSolution {publicint[] twoSum(int[] numbers,inttarget) {inttwoSum[] =newint[2];if(numbers ==null|| numbers.length < 2)returntwoSum;intleft = 0, right = numbers.length - 1;while(left <right) {intsum = numbers[left] +numbers[right];if(sum ==target) { twoSum[0] = +...
题目167(Two Sum II - Input array is sorted): 问题描述:给定一个按升序排列的整数数组 numbers 和一个目标值 target,请你找出两个数使得它们的和正好是 target。返回这两个数的下标,下标从1开始。 条件:数组已排序。 Two Sum(未排序数组) 由于数组未排序,双指针方法无法直接应用。常见解法是使用哈希表(字典...
} }thrownewIllegalArgumentException("No two sum solution"); } } 2.速度更快的解法,HashMap Copy classSolution{publicint[]twoSum(int[] nums,inttarget){ Map<Integer,Integer> m =newHashMap<Integer,Integer>();for(inti =0; i < nums.length; i++) {intcomplement = target - nums[i];if(m...
Can you solve this real interview question? Two Sum II - Input Array Is Sorted - Given a 1-indexed array of integers numbers that is already sorted in non-decreasing order, find two numbers such that they add up to a specific target number. Let these two
函数twoSum应该返回两个数字的索引,使它们相加到目标,其中index1必须小于index2。 请注意,您返回的答案(index1和index2)都不是基于零的。 您可以假设每个输入都将具有一个解决方案,您可能不会使用相同的元素两次。 Input: numbers={2, 7, 11, 15}, target=9 ...
The tests are generated such that there isexactly one solution. Youmay notuse the same element twice. Your solution must use only constant extra space. Example 1: Input:numbers = [2,7,11,15], target = 9 Output:[1,2] Explanation:The sum of 2 and 7 is 9. Therefore, index1 = 1, ...
classSolution(object):deftwoSum(self,numbers,target):s={}r=[]foriinrange(len(numbers)):ifnumbers[i]ins.keys():#判断该数在s键值对的键中是否存在。因为键值对的键记录的是差值r.append(s[numbers[i]]+1)r.append(i+1)returnr s[target-numbers[i]]=i#目标数与每一个数差值记录为s键值对的...
167.Two Sum II - Input array is sorted(双指针法) Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target...
28. Arrange Numbers so that Sum of Some Equals Largest Number Write a C++ program to arrange the numbers in a given array in a way that the sum of some numbers equals the largest number in the array. Click me to see the sample solution ...