You are given a binary string s and a positive integer k.
Return the length of the longest subsequence of s that makes up a binary number less than or equal to k.
Note:
\n\n0.\n
Example 1:
\n\n\nInput: s = "1001010", k = 5\nOutput: 5\nExplanation: The longest subsequence of s that makes up a binary number less than or equal to 5 is "00010", as this number is equal to 2 in decimal.\nNote that "00100" and "00101" are also possible, which are equal to 4 and 5 in decimal, respectively.\nThe length of this subsequence is 5, so 5 is returned.\n\n\n
Example 2:
\n\n\nInput: s = "00101001", k = 1\nOutput: 6\nExplanation: "000001" is the longest subsequence of s that makes up a binary number less than or equal to 1, as this number is equal to 1 in decimal.\nThe length of this subsequence is 6, so 6 is returned.\n\n\n
\n
Constraints:
\n\n1 <= s.length <= 1000s[i] is either '0' or '1'.1 <= k <= 109Compiled with clang 11 using the latest C++ 20 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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Python 2.7.12.
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\\r\\n\\r\\n1. Adding an item to a hash.\\r\\n
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Most libraries are already imported automatically for your convenience, such as array, bisect, collections. If you need more libraries, you can import it yourself.
\\r\\n\\r\\nFor Map/TreeMap data structure, you may use sortedcontainers library.
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