uva10935（栈）

Problem B: Throwing cards away I

对于此题，我只能说很无奈，就是因为输入1的时候没有控制好，所以答案一直是错误的！

Given is an ordered deck ofn cards numbered 1 tonwith card 1 at the top and cardn at the bottom.The following operation is performed as long as there are at least two cardsin the deck:

Throw away the top card and move the card that is now on the top of thedeck to the bottom of the deck.

Your task is to find the sequence of discarded cards and the last, remainingcard.

Each line of input (except the last) contains a numbern ≤ 50. The last line contains 0 and thisline should not be processed. For each number from the input producetwo lines of output. The first line presents the sequence of discarded cards,the second line reports the last remaining card. No line will have leading or trailing spaces.See the sample for the expected format.

Sample input

7191060

Output for sample input

Discarded cards: 1, 3, 5, 7, 4, 2Remaining card: 6Discarded cards: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 4, 8, 12, 16, 2, 10, 18, 14Remaining card: 6Discarded cards: 1, 3, 5, 7, 9, 2, 6, 10, 8Remaining card: 4Discarded cards: 1, 3, 5, 2, 6Remaining card: 4

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Folklore, adapted by Piotr Rudnicki

c#include<stdio.h>#include<string.h>int a[10000];int main(){    int i,n,count;    while(scanf("%d",&n)!=EOF)    {        if(n==0)  break;        if(n==1)   {printf("Discarded cards:\nRemaining card: 1\n");continue;}        memset(a,0,sizeof(a));        printf("Discarded cards:");        count=0;        for(i=0;i<n;i++)            a[i]=i+1;        int r=n,f=0;        while(f<r)        {            if(count!=0)  printf(",");            printf(" %d",a[f++]);            a[r++]=a[f++];            count++;            if(count==n-1)  break;        }        printf("\nRemaining card: %d\n",a[f]);    }    return 0;}c++#include<stdio.h>#include<string.h>struct queue{    int f,r,n,k,a[100];    void init(int len){memset(a,0,sizeof(a));n=len;f=k=r=0;}    void push(int x){a[(k++)%n]=x;r++;}    void pop(){f++;}    int ff(){return a[f%n];}    int f_(){return f;}    int rr(){return a[r%n];}    int r_(){return r;}    int length(){return n;}    int empty(){return f<r?0:1;}};main(){    int n,i;    queue q;    while(scanf("%d",&n)!=EOF)    {        if(n==0)   break;        if(n==1)   {printf("Discarded cards:\nRemaining card: 1\n");continue;}        printf("Discarded cards:");        q.init(n);        for(i=0;i<n;i++)            q.push(i+1);        while(!q.empty())        {            if(q.r-q.f==2)   break;            printf(" %d,",q.ff());            q.pop();            q.push(q.ff());            q.pop();        }        printf(" %d",q.ff());        q.pop();        q.push(q.ff());        q.pop();        printf("\nRemaining card: %d\n",q.ff());    }    return 0;}