From 79655c90bca58ae20f8037809fab5863b76c1fb4 Mon Sep 17 00:00:00 2001
From: Maryna Kravtsova <mk757ye@omega.tuke.sk>
Date: Thu, 3 Dec 2020 14:45:07 +0100
Subject: [PATCH] telegrafista

---
 a5/program.c | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 a5/program.c

diff --git a/a5/program.c b/a5/program.c
new file mode 100644
index 0000000..ae91cf3
--- /dev/null
+++ b/a5/program.c
@@ -0,0 +1,130 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#define MAX 100
+
+struct morsetree{
+    char letter;
+    struct morsetree *dash;
+    struct morsetree *dot;
+
+};
+
+struct morsetree* create(char l){
+    struct morsetree* new = calloc(1, sizeof(struct morsetree));
+    new->letter = l;
+    new->dot = NULL; 
+    new->dash = NULL;
+    return new;
+}
+
+struct morsetree* add(struct morsetree *tree, char *morse, char letter){
+    struct morsetree *this;
+    int i, size;
+
+    this = tree;
+    size = strlen(morse);
+
+    for(i = 0; i < size; i++) {
+        if(morse[i] == '.') {
+            if(this->dot == NULL){
+                this->dot = create('*');
+            }
+            this = this->dot;
+        }
+        else if(morse[i] == '-'){
+            if(this->dash == NULL){
+                this->dash = create('*');
+            }
+            this = this->dash;
+        }
+    }
+    this->letter = letter;
+
+}
+
+void destroy(struct morsetree *root){
+    if(root == NULL) return;
+    
+    destroy(root->dot);
+    destroy(root->dash);   
+    free(root);
+    root = NULL;
+
+}
+
+void search(struct morsetree* root, char* decode){
+    
+    struct morsetree* this = root;
+    int i = 0;
+    for(i == 0; i <= strlen(decode); i++){  
+       if(decode[i] == ' ' || decode[i] == '\n' || decode[i] == '\0'){        
+           printf("%c", this->letter);
+           this = root;
+       }
+       if(decode[i] == '/'){
+           printf(" ");
+       }
+       else{
+            if(decode[i] == '.'){
+                this = this->dot;
+            }
+            else if(decode[i] == '-'){
+                this = this->dash;
+            }
+       }
+      
+    }
+    //return this;  
+}
+
+int main (){
+
+    struct morsetree *root = create('*');
+
+    add(root, ".-", 'A');
+    add(root, "-..." ,'B' );
+    add(root, "-.-.", 'C' );
+    add(root, "-..", 'D');
+    add(root, ".", 'E');
+    add(root, "..-.", 'F');
+    add(root, "--.", 'G');
+    add(root, "....", 'H');
+    add(root, "..", 'I');
+    add(root, ".---", 'J');
+    add(root, "-.-", 'K');
+    add(root, ".-..", 'L');
+    add(root, "--", 'M');
+    add(root, "-.", 'N');
+    add(root, "---", 'O');
+    add(root, ".--.", 'P');
+    add(root, "--.-", 'Q');
+    add(root, ".-.", 'R');
+    add(root, "...", 'S');
+    add(root, "-", 'T');
+    add(root, "..-", 'U');
+    add(root, "...-", 'V');
+    add(root, ".--", 'W');
+    add(root, "-..-", 'X');
+    add(root, "-.--", 'Y');
+    add(root, "--..", 'Z');
+    add(root, ".----", '1');   
+    add(root, "..---", '2');
+    add(root, "...--", '3');
+    add(root, "....-", '4');
+    add(root, ".....", '5');
+    add(root, "-....", '6');
+    add(root, "--...", '7');
+    add(root, "---..", '8');
+    add(root, "----.", '9');
+    add(root, "-----", '0');    
+
+    char line[MAX];  
+    fgets(line, MAX, stdin);
+    line[strlen(line)-1] = '\0';
+    printf("\n");   
+    search(root, line);
+    
+    destroy(root);
+}