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Description: acm算法设计—会场安排问题！
假设要在足够多的会场里安排一批活动，并希望使用尽可能少的会场。设计一个有效的贪心算法进行安排。(这个问题实际上是著名的图着色问题。若将每一个活动作为图的一个顶点，不相容活动间用边相连。使相邻顶点着有不同颜色的最小着色数，相应于要找的最小会场数。)
对于给定的k个待安排的活动，编程计算使用最少会场的时间表。-acm algorithm design- the venue arrangements! Assume it to be enough room in the arrangements in a number of activities and want to use the venue as small as possible. The design of an effective arrangement of the greedy algorithm. (This issue is well-known graph coloring problem. If each activity as a graph vertex, between the incompatible activities connected with edges. So that adjacent vertices have different colors of coloring the smallest number, which corresponds to looking for the smallest number of the venue.) k for a given month to be arranged activities, calculated using the programming schedule for the venue at least.
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Description: ACM的一道题(关于全排列的)
题目是：
5009 ArrangementTimeLimit : 1 Second Memorylimit : 32 Megabyte
Totalsubmit : 414 Accepted : 176
Given a string of letters(A-Z),your task is to arrange them in alphabetic order.
Following is an example:
A string "BAC" contains 3 letters B,A and C,you should output
ABC
ACB
BAC
BCA
CAB
CBA
In the output file.
A string may contain several letters same,for example "BBC" you should output like this:
BBC
BCB
CBB
Input
The first line of input contains a single integer t, the number of test cases,followed by the input data for each test data.Each test case is a string of n(1<=n<=26) letters.
Output
You should output Case K: in the first line and the sequences of arrangement in the following lines of each case.
Sample Input
2
BAC
BBC
Sample Output
Case 1:
ABC
ACB
BAC
BCA
CAB
CBA
Case 2:
BBC
BCB
C-ACM' s a problem (on the whole array) entitled: 5009 ArrangementTimeLimit: 1 Second Memorylimit: 32 Megabyte Totalsubmit: 414 Accepted: 176 Given a string of letters (AZ), your task is to arrange them in alphabetic order. Following is an example: A string " BAC" contains 3 letters B, A and C, you should output ABC ACB BAC BCA CAB CBA In the output file. A string may contain several letters same, for example " BBC" you should output like this: BBC BCB CBB Input The first line of input contains a single integer t, the number of test cases, followed by the input data for each test data.Each test case is a string of n (1 < = n < = 26) letters. Output You should output Case K: in the first line and the sequences of arrangement in the following lines of each case. Sample Input 2 BAC BBC Sample Output Case 1: ABC ACB BAC BCA CAB CBA Case 2: BBC BCB CBB
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Author: wind |
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Description: zoj 3777，是我acm人生中的第一题状压dp，不得不承认这题很好，经典入门题。-zoj 3777, my first question acm life-like pressure dp, had to admit that this question is very good, classic entry title.
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Author: zhd |
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