2037. Richness of binary words 题目连接: http://acm.timus.ru/problem.aspx?space=1&num=2037 Description For each integer i from 1 to n, you must print a string si of length n consisting of letters 'a' and 'b' only. The string si must contain exactly i dis…
Richness of binary words 题目链接: http://acm.hust.edu.cn/vjudge/contest/126823#problem/B Description For each integer i from 1 to n, you must print a string s i of length n consisting of letters 'a' and 'b' only. The string s i must contain exactly i di…
2045. Richness of words 题目连接: http://acm.timus.ru/problem.aspx?space=1&num=2045 Description For each integer i from 1 to n, you must print a string si of length n consisting of lowercase Latin letters. The string si must contain exactly i distinct pa…
Nim or not Nim? Time Limit:1000MS Memory Limit:32768KB 64bit IO Format:%I64d & %I64u Submit Status Practice HDU 3032 Description Nim is a two-player mathematic game of strategy in which players take turns removing objects from distinct heaps.…
Permutation Bo 题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=5753 Description There are two sequences h1∼hn and c1∼cn. h1∼hn is a permutation of 1∼n. particularly, h0=hn+1=0. We define the expression [condition] is 1 when condition is True,is 0 whe…
Couple doubi 题目链接: http://acm.hust.edu.cn/vjudge/contest/121334#problem/D Description DouBiXp has a girlfriend named DouBiNan.One day they felt very boring and decided to play some games. The rule of this game is as following. There are k balls on th…
Good Luck in CET-4 Everybody! Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4762 Accepted Submission(s): 3058 Problem Description 大学英语四级考试就要来临了,你是不是在紧张的复习?或许紧张得连短学期的ACM都没工夫练习了,反正我知道的Kiki和C…
