1classSolution(object):2deftwoSum(self, nums, target):34forind, numinenumerate(nums):5iftarget-numinnumsandnums.index(target-num) !=ind:6return[ind, nums.index(target-num)]7return-1 直接利用了列表的索引。 运行速度仅为4ms 但是其中肯定用到了其他遍历比如nums.index(target-num)。这就是Pyt...
println(twoSum(intArrayOf(2,7,11,15),9).joinToString(",")) println(twoSum(intArrayOf(3,2,4), 6).joinToString(",")) println(twoSum(intArrayOf(3,3),6).joinToString(",")) } f="">Python: deftwoSum(nums, target): map = {} i = 0 l = len(nums) while i < l: a = num...
The problem "Two Sum" requires finding two numbers in an integer array such that their sum equals a specified target number. You need to return the indices of these two numbers, where indices start from 0. The indices of the two numbers cannot be the same, and there is exactly one solut...
[Lintcode two-sum]两数之和(python,双指针) 题目链接:http://www.lintcode.com/zh-cn/problem/two-sum/ 给一个整数数组,找到两个数使得他们的和等于一个给定的数target。 备份一份,然后排序。搞两个指针分别从左从右开始扫描,每次判断这两个数相加是不是符合题意,如果小了,那就把左边的指针向右移,同理...
Two Sum 系列 1 两数之和 1.1 题目描述 1.2 解法 1.2.1 Python 1.2.2 C++ 2 两数之和2 2.1 题目描述 2.2 解法 1 两数之和 原题链接:Leetcode 1. 两数之和 1.1 题目描述 给定一个整数数组 nums 和一个目标值 target,请你在该数组中找出和为目标值的那 两个 整数,并返回他们的数组下标。 你可以...
leetcode day8 Two Sum II 题目:这次给的数组是按照升序排列好的数组,依然是要得到两个数的坐标,使得这两个数之和为target的值 思路:回忆一下第一个two sum的时候,我们使用到的是字典的方法,这种方法在python里面特别好用,因为可以按照值直接搜索得到。 这一次可以继续使用字典(dict)的方法,但是我们还可以有...
[Leetcode by python] 1. Two Sum 题目https://leetcode.com/problems/two-sum/ 解题思路 第一次写技术博客,有点小兴奋! 代码... [LeetCode]1 - Two Sum(easy) - python problem description: Given an array of integers, return indices of the two numbers such that they add up to a specific ...
leetcode Python 167. Two Sum II - Input array is sorted 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 numb... ...
This is similar to our two sum problem where we are given two arrays and we need to find the pairs that will sum to the given sum, X. But in this case instead of two arrays, we have been given two BSTs. If we think similarly as we solved in the two sum pro...
Python Itertools Exercises, Practice and Solution: Write a Python program to find the first two elements of a given list whose sum is equal to a given value. Use the itertools module to solve the problem.