Improve print tree graph

print_helper.c

@@ -49,27 +49,24 @@ void print_tree(struct tree *parent)
 {
 	int level = 1;
 	while (parent->left != NULL ) {
-		for (int i = 0; i < level; i++) {
+		if (parent->right) {
+			for (int i = 0; i < level; i++)
 				printf(" ");
-		}
-		if (parent->right)
 			print_char(parent->right->ch);
+		}
 
 		for (int i = 0; i < level-1; i++) {
 			printf(" ");
 		}
 		printf("o\n");
 
-		for (int i = 0; i < level; i++) {
+		if (parent->left && parent->left->ch != 0) {
+			for (int i = 0; i < level; i++)
 				printf(" ");
-		}
-
-		if (parent->left && parent->left->ch != 0)
 			print_char(parent->left->ch);
-		else
-			printf("o\n");
+		}
 
-		level += 2;
+		level += 1;
 		parent = parent->left;
 	}
 }