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2019年11月3日

摘要：链接： https://vjudge.net/problem/POJ 2115 题意： A Compiler Mystery: We are given a C language style for loop of type for (variable = A; variable != B; var 阅读全文

posted @ 2019-11-03 22:57 YDDDD 阅读(139) 评论(0) 推荐(0)

POJ-2689-Prime Distance（素数区间筛法）

摘要：链接： https://vjudge.net/problem/POJ 2689 题意： The branch of mathematics called number theory is about properties of numbers. One of the areas that has c 阅读全文

posted @ 2019-11-03 22:40 YDDDD 阅读(113) 评论(0) 推荐(0)

POJ-2891-Strange Way to Express Integers（线性同余方程组）

摘要：链接： https://vjudge.net/problem/POJ 2891 题意： Elina is reading a book written by Rujia Liu, which introduces a strange way to express non negative integ 阅读全文

posted @ 2019-11-03 22:35 YDDDD 阅读(134) 评论(0) 推荐(0)

POJ-2142-The Balance

摘要：链接： https://vjudge.net/problem/POJ 2142 题意： Ms. Iyo Kiffa Australis has a balance and only two kinds of weights to measure a dose of medicine. For exa 阅读全文

posted @ 2019-11-03 22:11 YDDDD 阅读(95) 评论(0) 推荐(0)

POJ-1061-青蛙的约会（扩展欧几里得）

摘要：链接： https://vjudge.net/problem/POJ 1061 题意：两只青蛙在网上相识了，它们聊得很开心，于是觉得很有必要见一面。它们很高兴地发现它们住在同一条纬度线上，于是它们约定各自朝西跳，直到碰面为止。可是它们出发之前忘记了一件很重要的事情，既没有问清楚对方的特征，也没有约阅读全文

posted @ 2019-11-03 22:02 YDDDD 阅读(99) 评论(0) 推荐(0)

2019年11月2日

Educational Codeforces Round 75 (Rated for Div. 2) D. Salary Changing

摘要：链接： https://codeforces.com/contest/1251/problem/D 题意： You are the head of a large enterprise. n people work at you, and n is odd (i. e. n is not divis 阅读全文

posted @ 2019-11-02 11:10 YDDDD 阅读(123) 评论(0) 推荐(0)

2019年11月1日

Educational Codeforces Round 75 (Rated for Div. 2) C. Minimize The Integer

摘要：链接： https://codeforces.com/contest/1251/problem/C 题意： You are given a huge integer a consisting of n digits (n is between 1 and 3⋅105, inclusive). It 阅读全文

posted @ 2019-11-01 19:49 YDDDD 阅读(266) 评论(0) 推荐(0)

Educational Codeforces Round 75 (Rated for Div. 2) B. Binary Palindromes

摘要：链接： https://codeforces.com/contest/1251/problem/B 题意： A palindrome is a string t which reads the same backward as forward (formally, t[i]=t[|t|+1−i] f 阅读全文

posted @ 2019-11-01 19:40 YDDDD 阅读(230) 评论(0) 推荐(0)

Educational Codeforces Round 75 (Rated for Div. 2) A. Broken Keyboard

摘要：链接： https://codeforces.com/contest/1251/problem/A 题意： Recently Polycarp noticed that some of the buttons of his keyboard are malfunctioning. For simpl 阅读全文

posted @ 2019-11-01 19:14 YDDDD 阅读(99) 评论(0) 推荐(0)

2019年10月31日

Codeforces Round #596 (Div. 2, based on Technocup 2020 Elimination Round 2) D. Power Products

摘要：链接： https://codeforces.com/contest/1247/problem/D 题意： You are given n positive integers a1,…,an, and an integer k≥2. Count the number of pairs i,j suc 阅读全文

posted @ 2019-10-31 17:02 YDDDD 阅读(103) 评论(0) 推荐(0)

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