UVa 10361 Automatic Poetry

#include<cstdio>
#include<cstring>
#include<cstdlib>

char s1[105], s2[105];
char ch[105],str[2][105];
int main()
{
//	freopen("D:\\1.txt","r",stdin);
int n;
scanf("%d",&n);
getchar();
while(n--)
{
gets(s1);
gets(s2);
int len1 = strlen(s1);
int len2 = strlen(s2);
int k = 0;
int x[2], y[2];
int count = 0;
memset(ch,0,sizeof(ch));
memset(str,0,sizeof(str));

for(int i = 0; i < len1; i++)
{
if(s1[i] == '<')
{
count++;
x[count-1] = i;

for(int j = i+1; j < len1; j++)
{
if(s1[j] != '>')
{
ch[k++] = s1[j];
}
else
{
y[count-1] = j;
strcpy(str[count-1],ch);
memset(ch,0,sizeof(ch));
k = 0;
break;
}
}
}
}
for(int i = 0; i < len1; i++)
{
if(s1[i] == '<' || s1[i] == '>')
continue;
printf("%c",s1[i]);
}
printf("\n");
for(int i = 0; i < len2; i++)
{
if(s2[i] != '.')
{
printf("%c",s2[i]);
}
else
{
break;
}
}
printf("%s",str[1]);
for(int j = y[0]+1; j < x[1]; j++)
{
printf("%c",s1[j]);
}
printf("%s",str[0]);
for(int k = y[1]+1; k < len1; k++)
{
printf("%c",s1[k]);
}
printf("\n");
}
return 0;
}