Given two integers x and n, the task is to search for the first consecutive stream of 1s (in the x’s 32-bit binary representation) which is greater than or equal to n in length and return its position. If no such string exists then return -1.
Input: x = 35, n = 2
Binary representation of 35 is 00000000000000000000000000100011 and two consecutive 1’s are present at position 31.
Input: x = 32, n = 3
32 = 00000000000000000000000000100000 in binary and it does not have a sub-string of 3 consecutive 1’s.
Approach: Use Bitwise operation to calculate the no. of leading zeros in the number and then use it to find the position from where we need to start searching for consecutive 1’s. Skip the search for leading zeros.
Below is the implementation of the above approach:
- Length of longest consecutive zeroes in the binary representation of a number.
- Length of the Longest Consecutive 1s in Binary Representation
- 1 to n bit numbers with no consecutive 1s in binary representation.
- 1 to n bit numbers with no consecutive 1s in binary representation
- Find the n-th number whose binary representation is a palindrome
- Length of longest consecutive ones by at most one swap in a Binary String
- Find value of k-th bit in binary representation
- Binary representation of a given number
- Check if the binary representation of a number has equal number of 0s and 1s in blocks
- Binary representation of previous number
- Next greater number than N with exactly one bit different in binary representation of N
- Largest number with binary representation is m 1's and m-1 0's
- Find longest sequence of 1's in binary representation with one flip
- Number of leading zeros in binary representation of a given number
- Check if binary representation of a number is palindrome
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Improved By : Sach_Code