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.
ALSO CHECK: Other LeetCode Solutions in Java
-K Himaanshu Shuklaa..
Examples:
s = "leetcode"
return 0.
s = "loveleetcode",
return 2.
Note: You may assume the string contain only lowercase letters.
Java Solution:
ALSO CHECK: Other LeetCode Solutions in Java
-K Himaanshu Shuklaa..
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