Given two strings a and b, return the minimum number of times you should repeat string a so that string b is a substring of it. If it is impossible for b to be a substring of a after repeating it, return -1.
Notice: string "abc" repeated 0 times is "", repeated 1 time is "abc" and repeated 2 times is "abcabc".
\n
Example 1:
\n\n\nInput: a = "abcd", b = "cdabcdab"\nOutput: 3\nExplanation: We return 3 because by repeating a three times "abcdabcdabcd", b is a substring of it.\n\n\n
Example 2:
\n\n\nInput: a = "a", b = "aa"\nOutput: 2\n\n\n
\n
Constraints:
\n\n1 <= a.length, b.length <= 104a and b consist of lowercase English letters.Compiled with clang 11 using the latest C++ 17 standard.
Your code is compiled with level two optimization (-O2). AddressSanitizer is also enabled to help detect out-of-bounds and use-after-free bugs.
Most standard library headers are already included automatically for your convenience.
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\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
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