LeetCode Contest
Introduction
Contest 4
Rotate Function 396
Integer Replacement 397
Random Pick Index 398
Evaluate Division 399
Contest 3
Is Subsequence 392
UTF-8 Validation 393
Decode String 394
Longest Substring with At Least K Repeating Characters 395
Contest 2
Find the Difference 389
Elimination Game 390
Perfect Rectangle 391
Warmup Contest
Longest Absolute File Path 388
First Unique Character in a String 387
Lexicographical Numbers 386
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UTF-8 Validation 393
UTF-8 Validation 393
Question
Solution
代码如下：
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