『算法-ACM 竞赛-CodeForces』1311 C. Perform the Combo 前缀和You want to perform the combo on your opponent in one popular fighting game. The combo is the string s consisting of n lowercase Latin letters. To pe

『算法-ACM 竞赛-CodeForces』1311 D. Three IntegersIn one move, you can add +1 or −1 to any of these integers (i.e. increase or decrease any number by one). You can perform such operation any (possibly, zero

『算法-ACM 竞赛-CodeForces』1291 Round #616 (Div. 2) C. Mind Control（超级详细）C. Mind Control You and your n−1 friends have found an array of integers a1,a2,…,an. You have decided to share it in the following w

『算法-ACM 竞赛-CodeForces』1287A -Angry Students（模拟）It’s a walking tour day in SIS.Winter, so t groups of students are visiting Torzhok. Streets of Torzhok are so narrow that students have to go in a row o

『算法-ACM 竞赛-CodeForces』1255Round#601(Div.2)D.FeedingChicken（模拟）Codeforce 1255 Round #601 (Div. 2)D. Feeding Chicken （模拟）Long is a huge fan of CFC (Codeforces Fried Chicken). But the price of CFC is inc

『算法-ACM 竞赛-CodeForces』1255Round#601(Div.2)C.LeagueofLeesins（大模拟）Codeforce 1255 Round #601 (Div. 2) C. League of Leesins （大模拟）Bob is an avid fan of the video game “League of Leesins”, and today he cele

『算法-ACM 竞赛-CodeForces』1255Round#601(Div.2)B.FridgeLockers（思维）Codeforce 1255 Round #601 (Div. 2)B. Fridge Lockers（思维）Hanh lives in a shared apartment. There are nn people (including Hanh) living there,

『算法-ACM 竞赛-CodeForces』1251C. Minimize The IntegerC. Minimize The Integertime limit per test2 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputYou are given a huge integ

『算法-ACM 竞赛-CodeForces』1255Round#601(Div.2)A.ChangingVolume（贪心）Codeforce 1255 Round #601 (Div. 2) A. Changing Volume （贪心）Bob watches TV every day. He always sets the volume of his TV to bb. However, to

『算法-ACM 竞赛-CodeForces』1245FDanielandSpringCleaning（数位 DP）CodeForces - 1245F Daniel and Spring Cleaning （数位 DP）While doing some spring cleaning, Daniel found an old calculator that he loves so much. Ho