uva201 Squares 题解 Squares A children's board game consists of a square array of dots that contains lines connecting some of the pairs of adjacent dots. One part of the game requires that
题目 Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, …) which sum to n. For example, given n = 12, return 3 because 12 = 4 + 4 + 4; given n = 13,
题目链接:点击打开链接 Description A square is a 4-sided polygon whose sides have equal length and adjacent sides form 90-degree angles. It is also a polygon such that rotating about its centre by 90 degree
题目: Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. For example, given n = 12, return 3 because 12 = 4 + 4 + 4; given n =
Given a positive integer n, find the least number of perfect square numbers (for example, 1, 4, 9, 16, ...) which sum to n. For example, given n = 12, return 3 because 12 = 4 + 4 + 4; given n = 13,
传送门:CF [前题提要]:一道有意思的数学题 直接想这道题是不好想的(博主当时就完全没有思路).那么考虑将一个大问题分解成一个小问题想一下(感觉这种思考方式在CF题中还是挺常见的),考虑如果同时存在多个完全平方数,那么必然满足存在两个完全平方数.而当我们确定了任意两个数之后,我们就可以反推出其他数. 考虑如果存在两个数同时为完全平方数会发生什么? a [ i ] + x = p 2
描述 In this problem, you are given a sequence S1, S2, ..., Sn of squares of different sizes. The sides of the squares are integer numbers. We locate the squares on the positive x-y quarter of the plane