quanjun - 博客园

2020年2月18日

摘要：题目链接： "https://www.luogu.com.cn/problem/P1016" 解题思路（思路全部来自 "hongzy大神的博客" ）：思路： 1. 在起点加满油； 2. 到第i个加油站把油箱里价格 P[i]的油退了，换成价格为P[i]的油。 3. 每次烧油就找最便宜的油烧实现:单阅读全文

posted @ 2020-02-18 12:04 quanjun 阅读(239) 评论(0) 推荐(0)

2020年2月17日

欧拉计划第12题题解

摘要： Highly divisible triangular number The sequence of triangle numbers is generated by adding the natural numbers. So the 7th triangle number would be 1 阅读全文

posted @ 2020-02-17 19:34 quanjun 阅读(352) 评论(0) 推荐(1)

欧拉计划第11题题解

摘要： Largest product in a grid 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 阅读全文

posted @ 2020-02-17 18:49 quanjun 阅读(170) 评论(0) 推荐(0)

欧拉计划第10题题解

摘要： Summation of primes The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. 素数的和所有小于10的素数的和是2 + 3 + 5 阅读全文

posted @ 2020-02-17 18:34 quanjun 阅读(193) 评论(0) 推荐(0)

欧拉计划第9题题解

摘要： Special Pythagorean triplet A Pythagorean triplet is a set of three natural numbers, $a using namespace std; int main() { for (int i = 1; i <= 1000/3; 阅读全文

posted @ 2020-02-17 18:25 quanjun 阅读(244) 评论(0) 推荐(0)

欧拉计划第8题题解

摘要： Largest product in a series The four adjacent digits in the 1000 digit number that have the greatest product are 9 × 9 × 8 × 9 = 5832. Find the thirte 阅读全文

posted @ 2020-02-17 18:14 quanjun 阅读(549) 评论(0) 推荐(0)

欧拉计划第7题题解

摘要： 10001st prime By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13. What is the 10 001st prime number? 阅读全文

posted @ 2020-02-17 18:07 quanjun 阅读(228) 评论(0) 推荐(0)

欧拉计划第6题题解

摘要： Sum square difference The sum of the squares of the first ten natural numbers is, $$1^2 + 2^2 + \cdots + 10^2 = 385$$ The square of the sum of the fir 阅读全文

posted @ 2020-02-17 17:57 quanjun 阅读(196) 评论(0) 推荐(0)

欧拉计划第5题题解

摘要： Smallest multiple 2520 is the smallest number that can be divided by each of the numbers from 1 to 10 without any remainder. What is the smallest posi 阅读全文

posted @ 2020-02-17 17:47 quanjun 阅读(317) 评论(0) 推荐(0)

欧拉计划第4题题解

摘要： Largest palindrome product A palindromic number reads the same both ways. The largest palindrome made from the product of two 2 digit numbers is 9009 阅读全文

posted @ 2020-02-17 17:23 quanjun 阅读(228) 评论(0) 推荐(0)

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