代码语言:javascript复制
#include <bits/stdc .h>
using namespace std;
struct node
{
char data;
struct node *lc, *rc;
};
char a[100],b[100];
int n;
struct node *creat(int len, char a[], char b[])
{
if(len == 0) return NULL;
int i;
struct node *root;
root = new node;
root -> data = a[0];
for(i = 0; i < len; i )
{
if(a[0] == b[i])
{
break;
}
}
root -> lc = creat(i, a 1, b);
root -> rc = creat(len - i - 1,a i 1, b i 1);
return root;
};
int fin(struct node *root)
{
// cout << "yes" << endl;
int d1, d2;
int h = 0;
if(root)
{
d1 = fin(root -> lc);
d2 = fin(root -> rc);
h = max(d1 1,d2 1);
}
return h;
}
int main()
{
while(~scanf("%d",&n))
{
scanf("%s %s", a,b);
struct node *root;
root = creat(n,a,b);
int ans = fin(root);
printf("%dn",ans);
}
return 0;
}