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请问过路大哥，为什么会在输入多个数据，然后再输入-1结束程序时，会出现错误？当不输入数据，直接输入-1时，程序能正常结束！！感激不尽，我实在被弄的不行了。谢谢#include<stdio.h>
#include<string.h>
void main()
{
char p[16][100];
char m[10],temp[3];
int i,j,k,flag;
scanf("%s",p[0]);
while(strcmp(p[0], "-1"))
{
flag=1;
for(i=0;i<=15;i++)
{
p[i+1][0]='\0';
for(j=0;j<10;j++)
m[j]=0;
for(k=0;p[i][k]!='\0';k++)
m[p[i][k]-'0']++;
for(j=0;j<10;j++)
{
if(m[j]!=0)
{
temp[0]=m[j]+'0';
temp[1]=j+'0';
temp[2]='\0';
strcat(p[i+1],temp);
}
}
}
if(strcmp(p[0],p[1])==0) {printf("%s is self-inventorying\n",p[0]); flag=0;}
for(i=2;i<=15&&flag==1;i++)
{
if(strcmp(p[i],p[i-1])==0) {printf("%s is self-inventorying after %d steps\n",p[0],i-1); break;}
for(k=i-1;k>=0;k--)
if(strcmp(p[i],p[k])==0) {printf("%s enters an inventory loop of length %d\n",p[0],i-k);flag=0; break;}
}
if(i==16) printf("%s can not be classified after 15 iterations\n",p[0]);
scanf("%s",p[0]);
}
}
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