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  2. Power of two - Wikipedia

    en.wikipedia.org/wiki/Power_of_two

    A prime number that is one less than a power of two is called a Mersenne prime. For example, the prime number 31 is a Mersenne prime because it is 1 less than 32 (2 5). Similarly, a prime number (like 257) that is one more than a positive power of two is called a Fermat prime—the exponent itself is a power of

  3. LeetCode - Wikipedia

    en.wikipedia.org/wiki/LeetCode

    LeetCode LLC, doing business as LeetCode, is an online platform for coding interview preparation. The platform provides coding and algorithmic problems intended for users to practice coding . [ 1 ] LeetCode has gained popularity among job seekers in the software industry and coding enthusiasts as a resource for technical interviews and coding ...

  4. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    Powers of 2 appear in set theory, since a set with n members has a power set, the set of all of its subsets, which has 2 n members. Integer powers of 2 are important in computer science. The positive integer powers 2 n give the number of possible values for an n-bit integer binary number; for example, a byte may take 2 8 = 256 different values.

  5. Clique problem - Wikipedia

    en.wikipedia.org/wiki/Clique_problem

    The clique problem and the independent set problem are complementary: a clique in G is an independent set in the complement graph of G and vice versa. [20] Therefore, many computational results may be applied equally well to either problem, and some research papers do not clearly distinguish between the two problems.

  6. Subset sum problem - Wikipedia

    en.wikipedia.org/wiki/Subset_sum_problem

    If n is a small fixed number, then an exhaustive search for the solution is practical. L - the precision of the problem, stated as the number of binary place values that it takes to state the problem. If L is a small fixed number, then there are dynamic programming algorithms that can solve it exactly. As both n and L grow large, SSP is NP-hard.

  7. Polite number - Wikipedia

    en.wikipedia.org/wiki/Polite_number

    Thus, non-trapezoidal polite number must have the form of a power of two multiplied by an odd prime. As Jones and Lord observe, [12] there are exactly two types of triangular numbers with this form: the even perfect numbers 2 n − 1 (2 n − 1) formed by the product of a Mersenne prime 2 n − 1 with half the nearest power of two, and

  8. Puzzle solutions for Thursday, Nov. 28, 2024

    www.aol.com/news/puzzle-solutions-thursday-nov...

    SUDOKU. Play the USA TODAY Sudoku Game.. JUMBLE. Jumbles: MACAW MUSIC SYSTEM STEREO. Answer: Their Thanksgiving dinner included gravy that everyone thought — WAS “SAUCE-SOME”

  9. Cycle detection - Wikipedia

    en.wikipedia.org/wiki/Cycle_detection

    For i = 0, 1, 2, ..., the algorithm compares x 2 i −1 with each subsequent sequence value up to the next power of two, stopping when it finds a match. It has two advantages compared to the tortoise and hare algorithm: it finds the correct length λ of the cycle directly, rather than needing to search for it in a subsequent stage, and its ...