Find the number of islands
Given a grid consisting of '0's(Water) and '1's(Land). Find the number of islands. Note: An island is surrounded by water...Read More
Showing posts with label bit magic. Show all posts
Showing posts with label bit magic. Show all posts
No. of 1 Bits
Given a positive integer N, print count of set bits in it. Example 1: Input: N = 6 Output: 2 Explanation: Binary representation is ...Read More
Pairs with given XOR
Given an array A[] of size N of distinct positive integers and a number X , find the number of pairs of integers in the array w...Read More
permutation greater than that number
Count natural numbers whose all permutation are greater than that number Examples: Input : n = 15. Output : 14 Explanation: 1, 2, 3, 4, 5, 6...Read More
Rotated digits
x is a good number if after rotating each digit individually by 180 degrees, we get a valid number that is different from x . Each digit m...Read More
Subarray with given XOR
Given an array A[] of size N of distinct positive integers and a number X , find the number of pairs of integers in the array...Read More
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