First Non-Repeating Character: How do you find the first unique character in a string?

First Non-Repeating Character: How do you find the first unique character in a string?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, python, topic-specific

参考答案摘要

You first count how many times each character appears using a dictionary, then loop again through the string and return the first character whose count is one, if none exist return -1. def first_uniqu...

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