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Version:
v1.6.3
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Published: May 30, 2020
License: MIT
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Imports: 1
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Implement strStr().
Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack.
Example 1:
Input: haystack = "hello", needle = "ll"
Output: 2
Example 2:
Input: haystack = "aaaaa", needle = "bba"
Output: -1
Clarification:
What should we return when needle
is an empty string? This is a great question to ask during an interview.
For the purpose of this problem, we will return 0 when needle
is an empty string. This is consistent to C's strstr() and Java's indexOf().
[Two Pointers]
[String]
Similar Questions
- Shortest Palindrome (Hard)
- Repeated Substring Pattern (Easy)
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