随笔分类 - CF从零单排
CF,从提交量最搞的的题目开始,每天1题,日常打卡。
摘要:题目来源: http://codeforces.com/problemset/problem/743/B Chloe, the same as Vladik, is a competitive programmer. She didn't have any problems to get to th
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/514/A Luke Skywalker gave Chewbacca an integer number x. Chewbacca isn't good at numbers but he loves in
阅读全文
摘要:题目来源:http://codeforces.com/contest/4/problem/C A new e-mail service "Berlandesk" is going to be opened in Berland in the near future. The site adminis
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/339/B Xenia lives in a city that has n houses built along the main ringroad. The ringroad houses are num
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/230/A Kirito is stuck on a level of the MMORPG he is playing now. To move on in the game, he's got to de
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/479/A Petya studies in a school and he adores Maths. His class has been studying arithmetic expressions.
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/131/A wHAT DO WE NEED cAPS LOCK FOR? Caps lock is a computer keyboard key. Pressing it sets an input mod
阅读全文
摘要:题目来源:http://codeforces.com/contest/158/problem/B After the lessons n groups of schoolchildren went outside and decided to visit Polycarpus to celebrat
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/110/A Petya loves lucky numbers. We all know that lucky numbers are the positive integers whose decimal
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/266/B During the break the schoolchildren, boys and girls, formed a queue of n people in the canteen. In
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/116/A Linear Kingdom has exactly one tram line. It has n stops, numbered from 1 to n in the order of tra
阅读全文
摘要:题目来源: http://codeforces.com/problemset/problem/122/A Petya loves lucky numbers. Everybody knows that lucky numbers are positive integers whose decimal
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/58/A Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room a
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/69/A A guy named Vasya attends the final grade of a high school. One day Vasya decided to watch a match
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/236/A Those days, many boys use beautiful girls' photos as avatars in forums. So it is pretty hard to te
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/266/A There are n stones on the table in a row, each of them can be red, green or blue. Count the minimu
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/96/A Petya loves football very much. One day, as he was watching a football match, he was writing the pl
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/339/A Xenia the beginner mathematician is a third year student at elementary school. She is now learning
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/263/A You've got a 5 × 5 matrix, consisting of 24 zeroes and a single number one. Let's index the matrix
阅读全文
摘要:题目来源:http://codeforces.com/problemset/problem/112/A Little Petya loves presents. His mum bought him two strings of the same size for his birthday. The
阅读全文

浙公网安备 33010602011771号