The four adjacent digits in the 1000-digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832. Find the thirteen adjacent digits in the 1000-digit number that have the greatest product. What is the value of this product? 譯文: 觀察著1000個數字,通過…

先粘实现代码,以后需要再慢慢补充思路 s = ''' 73167176531330624919225119674426574742355349194934 96983520312774506326239578318016984801869478851843 85861560789112949495459501737958331952853208805511 12540698747158523863050715693290963295227443043557 6689664895044524452…

这个我开始理解错了,算错了. 我以为是求连续5个数的最大值,结果,是连接5个数相乘的最大值. 英语不好,容易吃亏啊. Find the greatest product of five consecutive digits in the 1000-digit number. 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891…

题目要求是: The four adjacent digits in the 1000-digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832. 7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319…

题意:寻找这 1000 个数中相邻 13 个数相乘积最大的值 思路:首先想到的是暴力,但是还可以利用之前记录过的数值,什么意思呢?即在计算 2 - 14 后,再计算 3 - 15 时完全可以利用之前计算 2-14的值再除以 2 乘上 15 ,但是因为其中有 0 的存在需要改造一下,记录下之前出现的 0 的个数,当这连续13个数有 0 存在的时候,结果自然是 0 直接忽略,当没 0 的时候更新一下 maxN 即可. /****************************************…

https://github.com/Premiumlab/Python-for-Algorithms--Data-Structures--and-Interviews/blob/master/Mock%20Interviews/Ride%20Share%20Start-Up%20Company/Ride%20Share%20Company%20-%20Interview%20Questions%20-%20SOLUTIONS/On-Site%20Question%201%20-%20SOLUT…

A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99. Find the largest palindrome made from the product of two 3-digit numbers. 3位数的话,就从999开始,为了减少遍历次数,就先从999-900,如果没有条件满足…

Problem 11 In the 20×20 grid below, four numbers along a diagonal line have been marked in red. 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 0849 49 99 40 17 81 18 57 60 87 17 40 98 43 69 48 04 56 62 0081 49 31 73 55 79 14 29 93 71 40 67…

这个比前面的要复杂点,但找对了规律,还是可以的. 我逻辑思维不强,只好画图来数数列的下标了. 分四次计算,存入最大值. 左右一次,上下一次,左斜一次,右斜一次. In the 2020 grid below, four numbers along a diagonal line have been marked in red. 08 02 22 97 38 15 00 40 00 75 04 05 07 78 52 12 50 77 91 0849 49 99 40 17 81 18 57 60…

title: The four adjacent digits in the 1000-digit number that have the greatest product are 9 9 8 9 = 5832. 73167176531330624919225119674426574742355349194934 96983520312774506326239578318016984801869478851843 8586156078911294949545950173795833195285…