Given a string, find the number of unique characters in the string. (all characters are in lower case) For eg: Input : "i love india" Output: 7 Explaination: unique characters are, [l,o,v,e,n,d,a]
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1y
The task is to find the number of unique characters in a given string.
Create an empty array to store unique characters.
Iterate through each character in the string.
If the character is not already pres...read more
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