Given a string, find the first non-repeating character in it and return it's index. If it doesn't exist, return -1. Examples: s = "leetcode" return 0. s = "loveleetcode", return 2. Note: You may assume the string contain only lowercase letters. 1 2 3 4 5 6 7 8 9 10 11...
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('loveleetcode')
my_string = "programiz is Lit" print(my_string[0].upper() + my_string[1:]) Run Code Output Programiz is Lit In the above example, my_string[0] selects the first character and upper() converts it to uppercase. Likewise, my_string[1:] selects the remaining characters as they are...
Write a Python program to find the first repeated character in a given string where the index of the first occurrence is smallest.Visual Presentation:Sample Solution:Python Code:# Define a function that finds the first repeated character in a string with the smallest distance between the repetition...
In addition, we canaccess just a specific characteror aslice of charactersof a string. We might want to do this, for example, if we have a text that’s too long to display and we want to show just a portion of it. Or if we want to make an acronym by taking the first letter of...
In [3]: sampleStr = "Hello, this is a sample string" ...: ...: print( "Last character in string : " , sampleStr[-1] ) ...: print( "Second Last character in string : " , sampleStr[-2] ) ...: print( "First character in string : " , sampleStr[ -len(sampleStr) ] )...
string.ascii_letters ascii_lowercase+ascii_uppercase的结果 。该值不依赖于本地设置。 string.ascii_lowercase 小写字母 a-z.该值不依赖于本地设置以及不会被修改。 string.ascii_uppercase 大写字母 A-Z.该值不依赖于本地设置以及不会被修改。 string.digits ...
The index of the first character of a string is 0. There is no separate character type. A character is simply a string of size 1. Here's how to get the character at a specific index.Python Copy word = 'Python' word[0] # Character in position 0.The output is:...
Declare the string variable: s='abababab' Copy Replace the first two occurrences of the character with the new character: print(s.replace('a','A',2))# perform replacement twice Copy The output is: Output AbAbabab Copy The output shows that the first two occurrences of theacharacter were ...
Replace words (length five or more) with hash characters in the said string: ### - ### ### from a ### Flowchart: For more Practice: Solve these Related Problems: Write a Python program to replace every character of a word with '#' if the word’s length is five or more. Write...