class Solution: def firstUniqChar(self, s): count = collections.Counter(s)# 该函数就是Python基础库里词频统计的集成函数 index = 0 for ch in s: if count[ch] == 1: return index else: index += 1 return -1 数组映射解题:# Java: Copyclass Solution { public int firstUniqChar(String s...
Counter(s)# 该函数就是Python基础库里词频统计的集成函数 index = 0 for ch in s: if count[ch] == 1: return index else: index += 1 return -1 数组映射解题: Java: class Solution { public int firstUniqChar(String s) { char[] chars = s.toCharArray(); int base = 97; int[] ...
class Solution(object): def firstUniqChar(self, s): s=s.lower() sList=list(s) numCdic={} for c in s: numCdic[c]=numCdic[c]+1 if c in numCdic else 1 for i in range(len(sList)): if numCdic[sList[i]]==1: return i return -1 sol=Solution() print sol.firstUniqChar...
Error message " New-ADUser : No superior reference has been configured for the directory service. The directory service is therefore unable to issue referrals to objects outside this forest At line:25 char:15" error message with a script sending emails to multiple recipients. error on all comma...
Python Code:# Define a function that finds the first repeated character in a string with the smallest distance between the repetitions. def first_repeated_char_smallest_distance(str1): temp = {} # Create an empty dictionary to store characters and their indices. for ch in str1: # Iterate ...
#include <cstdio> int main(int argc, char ** argv) { (void) argc; (void) argv; printf("hello world my_package package\n"); return 0; } 参考案例: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include "rclcpp/rclcpp.hpp" int main(int argc, char * argv[]) { rclcpp::init...
首先,让我们解释一下这个问答内容中的两个名词。 1. Function(函数):函数是一段可重复使用的代码,它接受输入,经过处理后产生输出。在编程中,函数有助于提高代码的可读性、可维护性和可扩展...
Java PythonMap-2 > firstChar prev | next | chance Given an array of non-empty strings, return a Map<String, String> with a key for every different first character seen, with the value of all the strings starting with that character appended together in the order they appear in the ...
10、os.getcwd()获取当前工作目录;os.chdir('dir')将工作目录改为dir文件夹。每次从idle运行代码时就已经将文件所在的目录及其路径加入python解释器的环境变量中了。 11、string.split('char',times)返回将string安装char进行切割times次的元组。 12、var.find(search)在var中查找search,不存在则返回-1,存在则返回...
C# split string (",") --error message cannot convert from string to char C# Split xml file into multiple files C# Split xml file into multiple files and map c# Sql Connection String issue C# SQL filter Query Parameter C# SQL INSERT Statement C# Sql server export dataTable to file access ...