uva120 Stacks of Flapjacks

郁闷

#include<stdio.h>
#include<stdlib.h>
int cmp(const void *a,const void *b)
{
    return *(int *)a - *(int *)b;
}
int main()
{
    int a[102] = {0}, b[102], top = 0;
    int i, j, k, flag, t;
    char ch;
    while((ch = getchar()) != EOF)
    {
        if(ch == ' ')
        {
            top++;
        }
        else if (ch >='1' && ch <= '9')
        {
            if(a[top] != 0)
            {
                a[top] = a[top]*10+ch-'0';
            }
            else
                a[top] = ch-'0';
            b[top] = a[top];
        }
        else
        {
            for(i = 0;i < top; i++)
                printf("%d ",a[i]);
            printf("%d\n",a[top]);
            top++;
            qsort(b,top,sizeof(b[0]),cmp);
            flag = top-1;
            for(i = top-1;i >= 0; i--)
            {
                if(a[i] != b[i])
                {
                    for(j = 0;j <= i; j++)
                        if(a[j] == b[i])
                            break;
                    if(j != 0)
                    {
                        printf("%d ",top-j);
                        for(k = 0;k < j; k++,j--)
                        {
                            t = a[k];
                            a[k] = a[j];
                            a[j] = t;
                        }
                        printf("%d ",top-i);
                        for(k = 0;k <= i/2; k++)
                        {
                            t = a[k];
                            a[k] = a[i-k];
                            a[i-k] = t;
                        }
                    }
                    else
                    {
                        printf("%d ",top-i);
                        for(k = 0;k <= i/2; k++)
                        {
                            t = a[k];
                            a[k] = a[i-k];
                            a[i-k] = t;
                        }
                    }
                }
            }
            printf("0\n");
            top = 0;
            memset(a,0,sizeof(a));
        }
    }
    return 0;
}