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Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | English | Home Page | Category: Computing | 1468 Views, 18288 Search Bots | 76 Words
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Hi, here's your problem today. This problem was recently asked by Facebook:
You are given a list of numbers, and a target number k. Return whether or not there are two numbers in the list that add up to k.
Example:
Given [4, 7, 1 , -3, 2] and k = 5,
return true since 4 + 1 = 5.
Try to do it in a single pass of the list.
Tags: 每日算法题, 算法, 数据结构, 面试题, Daily Problem, Data Structures and Algorithms, | English | Home Page | Cateogry: Computing | 1468 Views, 18288 Search Bots | 76 Words You are given a list of numbers, and a target number k. Return whether or not there are two numbers in the list that add up to k.
Example:
Given [4, 7, 1 , -3, 2] and k = 5,
return true since 4 + 1 = 5.
def two_sum(list, k):
# Fill this in.
print two_sum([4,7,1,-3,2], 5)
# True
Try to do it in a single pass of the list.
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