2818 密码

错的快抑郁了

#include<stdio.h>
#include<string.h>
#define MAX 300

int key[MAX],round[MAX];
char str1[MAX],str2[MAX];

int main()
{
	int i,n,k,temp,count;
	char ch;

	while(scanf("%d",&n),n!=0)
	{
		for(i=0;i<n;i++)
			scanf("%d",&key[i]);

		for(i=0;i<n;i++)
		{
			temp=i;
			count=0;
			do
			{
				temp=key[temp];
				temp--;
				count++ ;
			}while(temp!=i);
			round[i]=count;
		}

		while(scanf("%d",&k),k!=0)
		{
			getchar();
			i=0;

			while((ch=getchar())!='\n')
				str1[i++]=ch;
			while(i<n)
				str1[i++]=' ';

			for(i=0;i<n;i++)
			{
				count=k%round[i];

				temp=i;

				while(count--)
				{
					temp=key[temp];
					temp--;
				}
				str2[temp]=str1[i];

			}
			str2[n]='\0';
			printf("%s\n",str2);
		}
		printf("\n");


	}
	return 0;
}