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  • uva 133

    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("
    ");
    53     }
    54     return 0;
    55 }
    View Code
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  • 原文地址:https://www.cnblogs.com/qscqesze/p/3850467.html
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