uva 133 - The Dole Queue

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In a serious attempt to downsize (reduce) the dole queue, The New National Green Labour Rhinoceros Party has decided on the following strategy. Every day all dole applicants will be placed in a large circle, facing inwards. Someone is arbitrarily chosen as number 1, and the rest are numbered counter-clockwise up to N (who will be standing on 1‘s left). Starting from 1 and moving counter-clockwise, one labour official counts off k applicants, while another official starts from N and moves clockwise, counting m applicants. The two who are chosen are then sent off for retraining; if both officials pick the same person she (he) is sent off to become a politician. Each official then starts counting again at the next available person and the process continues until no-one is left. Note that the two victims (sorry, trainees) leave the ring simultaneously, so it is possible for one official to count a person already selected by the other official.

Input
Write a program that will successively read in (in that order) the three numbers (N, k and m; k, m > 0, 0 < N < 20) and determine the order in which the applicants are sent off for retraining. Each set of three numbers will be on a separate line and the end of data will be signalled by three zeroes (0 0 0).

Output
For each triplet, output a single line of numbers specifying the order in which people are chosen. Each number should be in a field of 3 characters. For pairs of numbers list the person chosen by the counter-clockwise official first. Separate successive pairs (or singletons) by commas (but there should not be a trailing comma).

Sample input

10 4 3
0 0 0
Sample output
 4  8,  9  5,  3  1,  2  6,  10,  7

 1 #include<iostream>  
 2 #include<string.h>  
 3 #include<stdio.h>  
 4 #include<ctype.h>  
 5 #include<algorithm>  
 6 #include<stack>  
 7 #include<queue>  
 8 #include<set>  
 9 #include<math.h>  
10 #include<vector>  
11 #include<map>  
12 #include<deque>  
13 #include<list>  
14 using namespace std;  
15 #define maxn 25
16 int n,k,m,a[maxn];
17 int go(int p,int d,int t)//构建走动函数，跳过数值为0的位置 
18 {
19     while(t--)
20     {
21         do
22         {
23             p=(p+d+n-1)%n+1;
24         }
25         while(a[p]==0);
26     }
27     return p;
28 } 
29 int main()
30 {
31     while(scanf("%d%d%d",&n,&k,&m)==3&&n)
32     {
33         for(int i=1;i<=n;i++)
34         a[i]=i;
35         int left =n;
36         int p1=n,p2=1;//初始化移动位置，逆时针用p1，顺时针用p2
37         while(left)
38         {
39             p1=go(p1,1,k);
40             p2=go(p2,-1,m);
41             printf("%d",p1);
42             left--;
43             if(p1!=p2)
44             {
45                  printf(" %d",p2);
46                  left--;
47             }
48             if(left)
49             printf(",");
50             a[p1]=a[p2]=0;;
51         } 
52         printf("\n");
53     }
54     return 0;
55 }

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uva 133 - The Dole Queue

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原文地址：http://www.cnblogs.com/qscqesze/p/3850467.html