停不下的脚步

Pearls Time Limit : 2000/1000ms (Java/Other) Memory Limit : 20000/10000K (Java/Other) Total Submission(s) : 15 Accepted Submission(s) : 8 Problem Description In Pearlania everybody is fond of pearls.

1012. K-based Numbers. Version 2 Time limit: 1.0 second Memory limit: 64 MB Let’s consider K-based numbers, containing exactly N digits. We define a number to be valid if itsK-based notatio

1225. Flags Time limit: 1.0 second Memory limit: 64 MB On the Day of the Flag of Russia a shop-owner decided to decorate the show-window of his shop with textile stripes of white, blue and

1167. Bicolored Horses Time limit: 1.0 second Memory limit: 64 MB Every day, farmer Ion (this is a Romanian name) takes out all his horses, so they may run and play. When they are done, far

1119. Metro Time limit: 0.5 second Memory limit: 64 MB Many of SKB Kontur programmers like to get to work by Metro because the main office is situated quite close the station Uralmash. So,

1146. Maximum Sum Time limit: 1.0 second Memory limit: 64 MB Given a 2-dimensional array of positive and negative integers, find the sub-rectangle with the largest sum. The sum of a rectang

1203. Scientific Conference Time limit: 1.0 second Memory limit: 64 MB Functioning of a scientific conference is usually divided into several simultaneous sections. For example, there may b

1073. Square Country Time limit: 1.0 second Memory limit: 64 MB There live square people in a square country. Everything in this country is square also. Thus, the Square Parliament has pass

1260. Nudnik Photographer Time limit: 1.0 second Memory limit: 64 MB If two people were born one after another with one second difference and one of them is a child, then the other one is a

1017. Staircases Time limit: 1.0 second Memory limit: 64 MB One curious child has a set of N little bricks (5 ≤ N ≤ 500). From these bricks he builds different staircases. Staircase consist

Cash Machine Time Limit : 2000/1000ms (Java/Other) Memory Limit : 20000/10000K (Java/Other) Total Submission(s) : 0 Accepted Submission(s) : 0 Problem Description A Bank plans to install a machine for

Problem E Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 65536/32768K (Java/Other Problem Description Nowadays, a kind of chess game called “Super Jumping! Jumping! Jumping!” is very popula

Alignment Time Limit : 2000/1000ms (Java/Other) Memory Limit : 60000/30000K (Java/Other) Problem Description In the army, a platoon is composed by n soldiers. During the morning inspection, the soldie

计算直线的交点数 Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Problem Description 平面上有n条直线，且无三线共点，问这些直线能有多少种不同交点数。 比如,如果n=2,则可能的交点数量为0(平行)或者1(不平行)。 Input 输入数据包含多个测试实例,每个

Palindrome Time Limit : 6000/3000ms (Java/Other) Memory Limit : 131072/65536K (Java/Other) Problem Description A palindrome is a symmetrical string, that is, a string read identically from left to ri

Blast 描述 Description 设有字符串X，我们称在X的头尾及中间插入任意多个空格后构成的新字符串为X的扩展串，如字符串X为“abcbcd”，则字符串“abcb□cd”，“□a□bcbcd□”和“abcb□cd□”都是X的扩展串，这里“□”代表空格字符。 如果A1是字符串A的扩展串，B1是字符串B的扩展串，A1与B1具有相同的长度，那么我们定义字符串A1与B1的距离为相应位置上的字

装箱问题 描述： 有一个箱子容量为v(正整数，o≤v≤20000)，同时有n个物品(o≤n≤30)，每个物品有一个体积 (正整数)。要求从 n 个物品中，任取若干个装入箱内，使箱子的剩余空间为最小。   输入格式： 第一行，一个整数，表示箱子容量； 第二行，一个整数，表示有n个物品； 接下来n行，分别表示这n个物品的各自体积   输出格式： 一个整数，表示箱子剩余空间。   样例输入： 24 6

XXXX年突然有外星人造访，但大家语言不通，不过科学家们经过研究发现外星人用26个英文字母组成的单词中 最长不降子序列的长度来表述数字，且英文字母的排列顺序不同，现给出其排列顺序，再给出外星人说的每个 数字（其实是每个英文单词，用空格隔开），翻译出外星人所说的数字（连续输出，最后加回车）。 (因为是最长不降子序列，所以数字中没有0，也就是说外星人的数字是>=1的数字) 例如 　　 我们正常的字母排

Human Gene Functions  Problem Description It is well known that a human gene can be considered as a sequence, consisting of four nucleotides, which are simply denoted by four letters, A, C, G, and T.

1009. K-based Numbers Time limit: 1.0 second Memory limit: 64 MB Let’s consider K-based numbers, containing exactly N digits. We define a number to be valid if itsK-based notation doesn’t c

Cow Bowling Time Limit : 2000/1000ms (Java/Other) Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 8 Accepted Submission(s) : 4 Problem Description The cows don't use actual bowling bal

最长回文 Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 5616    Accepted Submission(s): 1912 Problem Description 给出一个只由小写英文字符a,b,c...y