Categorygithub.com/Elven9/my-leetcodeProblems387
package
0.0.0-20241209140624-9fce2a725d55
Repository: https://github.com/elven9/my-leetcode.git
Documentation: pkg.go.dev
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Dependencies
0
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0

# README

First Unique Character in a String

Solution IdxTime ComplexitySpace ComplexityComment
1O(n)O(1)scan, with two map, one for least index, one for freq
2O(n)O(1)using array instead of map to speed up