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真是奇葩啊,用C能过....#include <stdio.h>
#include <string.h>
int main()
{
char s1[50],s2[50];
int len1,len2;
int blank=0;
int i,sum,flag;
scanf("%s",s1);
printf("%s\n",s1);
while(scanf("%s",s2)!=EOF)
{
len1=strlen(s1);
len2=strlen(s2);
sum=0;
flag=1;
for(i=0;i<len1&&i<len2;i++)
{
if(s1[i]==s2[i])
sum++;
else
break;
if(sum>blank)
{
flag=0;
blank++;
break;
}
}
if(flag)
blank=sum;
for(i=0;i<blank;i++)
printf(" ");
printf("%s\n",s2);
strcpy(s1,s2);
}
return 0;
}
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