Project Euler | 欧拉计划

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• 题目 | Project Euler | 欧拉计划

  题目汇总 本页面为所有题目汇总，点击相应题号进入该题，或直接访问: http://PE-CN.github.io/题号/ 001 ~ 100 101 ~ 200 201 ~ 300 301 ~ 400 401 ~ 500 501 ~ 600 601 ~ 700 701 ~ 800 801 ~ now 001 101 201 301 401 501 601

• Problem 101 | Project Euler | 欧拉计划

  Problem 101 Optimum polynomialIf we are presented with the first $k$ terms of a sequence it is impossible to say with certainty the value of the next term, as there are infinitely many polynomial fun

• Problem 24 | Project Euler | 欧拉计划

  Problem 24 Lexicographic permutationsA permutation is an ordered arrangement of objects. For example, $3124$ is one possible permutation of the digits $1$, $2$, $3$ and $4$. If all of the permutation

• Problem 801 | Project Euler | 欧拉计划

  Problem 801 $x^y\equiv y^x$The positive integral solutions of the equation $x^y=y^x$ are $(2,4)$, $(4,2)$ and $(k,k)$ for all $k>0$. For a given positive integer $n$, let $f(n)$ be the number of i

• Problem 2 | Project Euler | 欧拉计划

  Problem 2 Even Fibonacci numbersEach new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with $1$ and $2$, the first $10$ terms will be: $$1, 2, 3, 5, 8, 13,

• Problem 61 | Project Euler | 欧拉计划

  Problem 61 Cyclical figurate numbersTriangle, square, pentagonal, hexagonal, heptagonal, and octagonal numbers are all figurate (polygonal) numbers and are generated by the following formulae: &nb