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C. Phone NumbersAnd where the are the phone numbers?You are given a string s consisting of lowercase English letters an

2020-06-19 21:17:45

C. ZebrasOleg writes down the history of the days he lived. For each day he decides if it was good or bad. Oleg calls a

2020-06-19 21:17:43

A. Protect SheepBob is a farmer. He has a large pasture with many sheep. Recently, he has lost some of them due to wolf

2020-06-19 21:17:43

C. Producing SnowAlice likes snow a lot! Unfortunately, this year's winter is already over, and she can't expect to hav

2020-02-20 17:30:41

B. Intercepted MessageHacker Zhorik wants to decipher two secret messages he intercepted yesterday. Yeah message is a s

2020-02-20 17:30:40

C. Sequence Transformation Let's call the following process a transformation of a sequence of length nn. If the seque

2018-11-04 00:44:18

C. Smallest Word IA has so many colorful magnets on her fridge! Exactly one letter is written on each magnet, 'a' or

2018-11-04 00:44:18

C. Make It Equal There is a toy building consisting of nn towers. Each tower consists of several cubes standing on ea

2018-11-04 00:44:18

A. Diverse Substring You are given a string ss, consisting of nn lowercase Latin letters. A substring of string ss is

2018-11-04 00:44:18

鏈接：https://www.nowcoder.com/acm/contest/215/A 來源：牛客網題目描述 “White shores, and beyond. A far green country under a swif

2018-11-04 00:44:18

B. Vasya and Books Vasya has got nn books, numbered from 11 to nn, arranged in a stack. The topmost book has number a

2018-11-04 00:44:17

描述爲了提升用戶帳號的安全性，H站決定實施一項措施：對在1小時內(注：00:00:00與01:00:00仍視爲在1小時內)出現5次或5次以上密碼錯誤的賬戶，暫時禁止該帳號被登錄。現在小Hi拿到了某日全部密碼錯誤的日誌，他想知道有哪

2018-10-27 00:33:09

B. Equations of Mathematical Magic Colossal! — exclaimed Hawk-nose. — A programmer! That's exactly what we are lookin

2018-10-27 00:33:09

C. Candies Distribution There are nn children numbered from 11 to nn in a kindergarten. Kindergarten teacher gave aia

2018-10-27 00:33:09

B. Appending Mex Initially Ildar has an empty array. He performs nn steps. On each step he takes a subset of integers

2018-10-27 00:33:09