Chat room(codeforces-58A)
Vasya has recently learned to type and log on to the Internet. He immediately entered a chat room and decided to say hel
Codeforces Round #640 (Div. 4)A. Sum of Round Numbers
题目链接:https:codeforcescontest1352problemA problem description A positive (strictly greater than zero) integer is ca
Codeforces Round #451 (Div. 2) D. Alarm Clock (贪心+双指针)
D. Alarm Clock time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard ou
【每日一题(22)】Hamburgers Codeforces Round
Hamburgers Codeforces Round #218 (Div. 2) Polycarpus loves hamburgers very much. He especially adores the hamburgers he
Codeforces Round #670 (Div. 2) C. Link Cut Centroids
题目链接 Fishing Prince loves trees, and he especially loves trees with only one centroid. The tree is a connected graph wi
codeforces 785C. Anton and Fairy Tale(二分)
Anton likes to listen to fairy tales, especially when Danik, Anton’s best friend, tells them. Right now Danik tells Anto
codeforces-1399C-Boats Competition
C. Boats Competition time limit per test 2 seconds memory limit per test 256 megabytes input standard input outpu
Codeforces 1399C - Boats Competition(双指针)
C. Boats Competition time limit per test2 seconds memory limit per test256 megabytes input standard input output standa
Codeforces Multi-Subject Competition
C. Multi-Subject Competition time limit per test 2 seconds memory limit per test 256 megabytes input standard input outp
CodeForces - 1082C . Multi-Subject Competition 好题+差一点
C. Multi-Subject Competition time limit per test 2 seconds memory limit per test 256 megabytes input standard inpu
CodeForces - 1082CMulti-Subject Competition前缀和+ 思维
A multi-subject competition is coming! The competition has m different subjects participants can choose from. Thats why
Educational Codeforces Round 55 (Rated for Div. 2)C. Multi-Subject Competition
题目链接: http:codeforcescontest1082problemC C. Multi-Subject Competition time limit per test 2 seconds
Codeforces 1082 C. Multi-Subject Competition-有点意思 (Educational Codeforces Round 55 (Rated for Div. 2...
C. Multi-Subject Competition time limit per test 2 seconds memory limit per test 256 megabytes input standard input outp
Codeforces 645E. Intellectual Inquiry(DP,贪心)
Codeforces 645E. Intellectual Inquiry 题意:给定一串字符,由前k个小写拉丁字母组成,要求在该字符串后面补上n个字符(
CodeForces 645 E.Intellectual Inquiry(dp+贪心)
Description给出一个只由前k个小写字母组成的长度为m的字符串,要求在后面添上n个字符(只能是前k个小写字母)使得组成的新串的不同子串数量最大Input第
CodeForces 645E Intellectual Inquiry(构造+贪心+dp)
题意:给出一个字符串t,现在可以在这个字符串后面加n个k以下的字母,询问一种方案,使得加了n个字母后的字符串中不相同的子串(子串不
Codeforces 645E Intellectual Inquiry [贪心] [DP]
E. Intellectual Inquirytime limit per test 2 secondsmemory limit per test 256 megabytesinput standard inputoutpu
Codeforces Round #705 (Div. 2) E. Enormous XOR
传送门 题目大意 以二进制形式给长度为n的两个数l和r,l可能有前导0,r没有前导0,选两个数x,y满足l<x&&x<y
CodeForces Gym 100935DEnormous Carpet快速幂取模
Enormous Carpet Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Gym 100935D Description
Enormous Carpet(快速幂取模)
Ameer is an upcoming and pretty talented problem solver who loves to solve problems using computers. Lately, He bought a
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