#include<stdio.h> #include<string.h> #include<malloc.h> typedef struct tree { struct tree *left; struct tree *right; char data; }t; int find(char a,char *b) { int i=0; while(b[i]!=a) { i=i+1; } return i; } void write(t *tree) { if(tree->left!=NULL) { write(tree->left); } if(t...