Check If a String Contains All Binary Codes of Size K - Practice Coding | SlaveCode
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1461. Check If a String Contains All Binary Codes of Size K
Medium
30 Points
Hash Table
String
Bit Manipulation
Rolling Hash
Hash Function
Given a binary string s and an integer k, return true if every binary code of length k is a substring of s. Otherwise, return false.
Examples
Example 1
Input: s = "00110110", k = 2
Output: true
Explanation: The binary codes of length 2 are "00", "01", "10" and "11". They can be all found as substrings at indices 0, 1, 3 and 2 respectively.
Example 2
Input: s = "0110", k = 1
Output: true
Explanation: The binary codes of length 1 are "0" and "1", it is clear that both exist as a substring.
Example 3
Input: s = "0110", k = 2
Output: false
Explanation: The binary code "00" is of length 2 and does not exist in the array.
Constraints
1 <= s.length <= 5 * 105
s[i] is either '0' or '1'.
1 <= k <= 20
1461. Check If a String Contains All Binary Codes of Size K
Medium
30 Points
Hash Table
String
Bit Manipulation
Rolling Hash
Hash Function
Given a binary string s and an integer k, return true if every binary code of length k is a substring of s. Otherwise, return false.
Examples
Example 1
Input: s = "00110110", k = 2
Output: true
Explanation: The binary codes of length 2 are "00", "01", "10" and "11". They can be all found as substrings at indices 0, 1, 3 and 2 respectively.
Example 2
Input: s = "0110", k = 1
Output: true
Explanation: The binary codes of length 1 are "0" and "1", it is clear that both exist as a substring.
Example 3
Input: s = "0110", k = 2
Output: false
Explanation: The binary code "00" is of length 2 and does not exist in the array.