霜雪千年

2018年6月1日

摘要： Problem description There are n employees in Alternative Cake Manufacturing (ACM). They are now voting on some very important question and the leading 阅读全文

posted @ 2018-06-01 19:19 霜雪千年阅读(224) 评论(0) 推荐(0) 编辑

C - cAPS lOCK

摘要： Problem description wHAT DO WE NEED cAPS LOCK FOR? Caps lock is a computer keyboard key. Pressing it sets an input mode in which typed letters are cap 阅读全文

posted @ 2018-06-01 18:55 霜雪千年阅读(392) 评论(0) 推荐(0) 编辑

B - Chat room

摘要： Problem description Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room and decided to say hello to ever 阅读全文

posted @ 2018-06-01 18:46 霜雪千年阅读(425) 评论(0) 推荐(0) 编辑

A - Beautiful Matrix

摘要： Problem description You've got a 5 × 5 matrix, consisting of 24 zeroes and a single number one. Let's index the matrix rows by numbers from 1 to 5 fro 阅读全文

posted @ 2018-06-01 18:40 霜雪千年阅读(437) 评论(0) 推荐(0) 编辑

2018年5月31日

B - Alyona and mex（构造）

摘要： Problem description Alyona's mother wants to present an array of n non-negative integers to Alyona. The array should be special. Alyona is a capriciou 阅读全文

posted @ 2018-05-31 19:50 霜雪千年阅读(268) 评论(0) 推荐(0) 编辑

B - Taxi（贪心）

摘要： Problem description After the lessons n groups of schoolchildren went outside and decided to visit Polycarpus to celebrate his birthday. We know that 阅读全文

posted @ 2018-05-31 19:02 霜雪千年阅读(411) 评论(0) 推荐(0) 编辑

C - Tram

摘要： Problem description Linear Kingdom has exactly one tram line. It has n stops, numbered from 1 to n in the order of tram's movement. At the i-th stop a 阅读全文

posted @ 2018-05-31 18:24 霜雪千年阅读(254) 评论(0) 推荐(0) 编辑

A - High School: Become Human

摘要： Problem description Year 2118. Androids are in mass production for decades now, and they do all the work for humans. But androids have to go to school 阅读全文

posted @ 2018-05-31 15:13 霜雪千年阅读(156) 评论(0) 推荐(0) 编辑

C - Crazy Town

摘要： Problem description Crazy Town is a plane on which there are n infinite line roads. Each road is defined by the equation aix + biy + ci = 0, where ai 阅读全文

posted @ 2018-05-31 14:45 霜雪千年阅读(260) 评论(0) 推荐(0) 编辑

2018年5月30日

C - Stones on the Table

摘要： Problem description There are n stones on the table in a row, each of them can be red, green or blue. Count the minimum number of stones to take from 阅读全文

posted @ 2018-05-30 17:59 霜雪千年阅读(367) 评论(0) 推荐(0) 编辑

A thousand miles begins with a single step.

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