Code Signal_练习题_differentSymbolsNaive
Given a string, find the number of different characters in it.
Example
For s = "cabca", the output should bedifferentSymbolsNaive(s) = 3.
There are 3 different characters a, b and c.
我的解答:
def differentSymbolsNaive(s):
return len(set(s))
一模一样
膜拜大佬
Code Signal_练习题_differentSymbolsNaive的更多相关文章
- Code Signal_练习题_digitDegree
Let's define digit degree of some positive integer as the number of times we need to replace this nu ...
- Code Signal_练习题_Knapsack Light
You found two items in a treasure chest! The first item weighs weight1 and is worth value1, and the ...
- Code Signal_练习题_growingPlant
Each day a plant is growing by upSpeed meters. Each night that plant's height decreases by downSpeed ...
- Code Signal_练习题_arrayMaxConsecutiveSum
Given array of integers, find the maximal possible sum of some of its k consecutive elements. Exampl ...
- Code Signal_练习题_firstDigit
Find the leftmost digit that occurs in a given string. Example For inputString = "var_1__Int&qu ...
- Code Signal_练习题_extractEachKth
Given array of integers, remove each kth element from it. Example For inputArray = [1, 2, 3, 4, 5, 6 ...
- Code Signal_练习题_stringsRearrangement
Given an array of equal-length strings, check if it is possible to rearrange the strings in such a w ...
- Code Signal_练习题_absoluteValuesSumMinimization
Given a sorted array of integers a, find an integer x from a such that the value of abs(a[0] - x) + ...
- Code Signal_练习题_depositProfit
You have deposited a specific amount of money into your bank account. Each year your balance increas ...
随机推荐
- 一个简单文本分类任务-EM算法-R语言
一.问题介绍 概率分布模型中,有时只含有可观测变量,如单硬币投掷模型,对于每个测试样例,硬币最终是正面还是反面是可以观测的.而有时还含有不可观测变量,如三硬币投掷模型.问题这样描述,首先投掷硬币A,如 ...
- Django(ORM查询联系题)
day70 练习题:http://www.cnblogs.com/liwenzhou/articles/8337352.html import os import sys if __name__ == ...
- javascript数据结构与算法---二叉树(查找最小值、最大值、给定值)
javascript数据结构与算法---二叉树(查找最小值.最大值.给定值) function Node(data,left,right) { this.data = data; this.left ...
- 这两周服务器被攻击,封锁了600多个IP地址段后今天服务器安静多了
这两周服务器被攻击,封锁了600多个IP地址段后今天服务器安静多了 建议大家在自己的服务器上也封杀这些瘪三的地址 iptables -I INPUT -s 123.44.55.0/24 -j DROP ...
- 集合框架_DAY15
1:集合(掌握) (1)集合的由来 我们需要对多个对象进行存储和获取.可以使用对象数组.但是,如果对象的个数是变化的,对象数组就解决不了了.怎么办呢?java就提供了集合类解决. (2)集合和数组的区 ...
- 链表的反转、合并(不借助额外list数组)
链表的基本操作:线性表 (单链表.循环链表-python实现) 反转链表: # -*- coding:utf-8 -*- class ListNode: def __init__(self, x): ...
- webstorm引用ESLint进行静态代码检查
安装 ESLint 基于 Node 平台,所以 Nodejs 是必须安装的,然后通过 npm 安装 ESLint 包,至于全局安装还是作为开发依赖安装,取决于个人. 然后在 WebStorm 中,打开 ...
- JAVA面试精选【Java算法与编程一】
在面试中,算法题目是必须的,通过算法能够看出一个程序员的编程思维,考察对复杂问题的设计与分析能力,对问题的严谨性都能够体现出来.算法是一系列解决问题的清晰指令,也就是说,能够对一定规范的输入,在有限时 ...
- manjaro 添加当前用户到kvm
原贴 https://askubuntu.com/questions/1050621/kvm-is-required-to-run-this-avd Check the ownership of /d ...
- Spring Boot + Spring Cloud 实现权限管理系统 后端篇(二):数据库设计
数据库设计 系统主要包含用户(sys_user).组织(sys_dept).角色(sys_role).菜单(sys_menu).角色组织(sys_role_dept).角色菜单(sys_role_me ...