Коммит 1

iii.txt

@@ -0,0 +1,146 @@
+#define _CRT_SECURE_NO_WARNINGS
+
+#include <stdio.h>
+#include <stdlib.h>
+
+struct Node {
+	int data;
+	struct Node* next;
+};
+
+
+struct Node* first = NULL;
+
+void addToHead(int value) {
+	struct Node* newNode = (struct Node*)malloc(sizeof(struct Node));
+
+	newNode->next = first;
+	newNode->data = value;
+
+	first = newNode;
+}
+
+void printList() {
+	struct Node* ptr = first;
+	while (ptr != NULL) {
+		printf("(%d) -> ", ptr->data);
+		ptr = ptr->next;
+	}
+	printf("NULL\n");
+}
+
+int deleteFromHead() {
+	int value = first->data;
+	struct Node* delNode = first;
+	first = first->next;
+	free(delNode);
+	return value;
+}
+
+int contains(int value) {
+	struct Node* ptr = first;
+	while (ptr != NULL) {
+		if (ptr->data == value) {
+			return 1;
+		}
+		ptr = ptr->next;
+	}
+	return 0;
+}
+
+void clearList() {
+	while (first != NULL)
+	{
+		struct Node* delNode = first;
+		first = first->next;
+		free(delNode);
+	}
+}
+
+int sum()
+{
+	struct Node* ptr = first;
+	int s = 0;
+	while (ptr != NULL) {
+		s += ptr->data;
+		ptr = ptr->next;
+	}
+	return s;
+}
+
+int evenCount()
+{
+	struct Node* ptr = first;
+	int count = 0;
+	while (ptr != NULL) {
+		if (ptr->data % 2 == 0) {
+			count++;
+		}
+		ptr = ptr->next;
+	}
+	return count;
+}
+
+int oddX10()
+{
+	struct Node* ptr = first;
+	while (ptr != NULL) {
+		if (ptr->data % 2 != 0) {
+			ptr->data *= 10;
+		}
+		ptr = ptr->next;
+	}
+}
+
+void element100(int i) {
+	struct Node* ptr = first;
+	int index = 0;
+	while (ptr != NULL) {
+		if (index == i) {
+			ptr->data = ptr->data * 100;
+			return;
+		}
+		ptr = ptr->next;
+		index++;
+	}
+}
+
+void leftelement(int i) {
+	struct Node* ptr = first;
+	int index = 0;
+	while (ptr != NULL && index < i) {
+		ptr->data *= 10;
+		ptr = ptr->next;
+		index++;
+	}
+}
+
+
+void main() {
+	printList();
+
+	addToHead(1);
+	addToHead(3);
+	addToHead(6);
+	addToHead(9);
+	printList();
+
+	printf("sum = %d\n", sum());
+
+	printf("even numbers = %d\n", evenCount());
+	
+	oddX10();
+	printList();
+
+	element100(0);
+	printList();
+
+	element100(3);
+	printList();
+
+	leftelement(2);
+	printList();
+
+	
+}
+