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Ex1.c

@@ -0,0 +1,165 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+typedef struct Node
+{
+    int val;
+    struct Node *pNext;
+    
+} Node;
+
+typedef struct UnBoundedInt
+{
+    int size;
+    Node *pHead;
+} UnBoundedInt;
+
+void init_ubI (UnBoundedInt *I)
+{
+    I->size = 0;
+    I->pHead = NULL;
+}
+
+Node *initNode(int val)
+{
+    Node *node = (Node *)malloc(sizeof *node);
+    if (node == NULL)
+        exit(0);
+    node->val = val;
+    node->pNext = NULL;
+    return node;
+}
+int isEmpty(UnBoundedInt *I)
+{
+    return (I->size == 0 || I->pHead == NULL);
+}
+
+
+void display(UnBoundedInt *I)
+{
+    if (I->size == 0)
+    {
+        printf("0");
+        return;
+    }
+
+    Node *current = I->pHead;
+    if (current->val == 1)
+        printf("+");
+    else if (current->val == -1)
+    {
+       printf("-");
+    }
+    
+    current = current ->pNext;
+    while (current != NULL)
+    {
+        printf("%d",current->val);
+        current = current ->pNext;
+    }
+    printf("\n");
+}
+
+
+void insert_digit(int new_val, Node * pcurr,UnBoundedInt *I)
+{
+    Node *newNode = initNode(new_val);
+    if (isEmpty(I))
+    {
+        I->pHead = newNode;
+    }else
+    {
+        newNode->pNext = pcurr->pNext;
+        pcurr->pNext = newNode;
+        I->size++;
+    }
+}
+
+void insert_d(UnBoundedInt *n,Node *node_before_the_inserting_node,int val)
+{
+    Node *new = initNode(val);
+    if (n->pHead == NULL){
+        n->pHead = new;
+    }else
+    {
+        new->pNext = node_before_the_inserting_node->pNext;
+        node_before_the_inserting_node->pNext = new;
+    }
+    n->size++;       
+}
+
+void insert_digit_finale(UnBoundedInt *I, int val, int digit_pos)
+{
+    Node *new = initNode(val);
+    if (I->pHead == NULL)
+    {
+        I->pHead = new;
+    }else
+    {
+        Node *pcurr = I->pHead;
+        for (int i = 1;i<=digit_pos && pcurr->pNext != NULL;i++)
+        {
+            pcurr = pcurr->pNext;
+        }
+
+        new->pNext = pcurr->pNext;
+        pcurr->pNext = new;
+    }
+    I->size++;
+    display(I);
+}
+
+void remove_digit(UnBoundedInt *I, int val)
+{
+    Node *p = I->pHead;
+    if (p->val == val)
+    {
+        I->pHead = p->pNext;
+        free(p);
+        I->size--;
+        return;
+    }
+
+    Node *q = p->pNext;
+    int cnt = 1;
+    while ((p->val != val) && cnt < I->size)
+    {
+        q = p;
+        p = p->pNext;
+        cnt++;
+    }
+
+    if (p != NULL)
+    {
+        q->pNext = p->pNext;
+        I->size--;
+        free(p);
+    }
+}
+
+void Calc_sum(UnBoundedInt *I)
+{
+    int Sum = 0;
+    Node *current = I->pHead->pNext;
+
+    while (current->pNext != NULL)
+    {   Sum += current->val;
+        current = current->pNext;
+    }
+    Sum += current->val;
+    printf("Sum is: %d",Sum);
+}
+
+int main()
+{
+    UnBoundedInt *new_num = (UnBoundedInt *)malloc(sizeof(UnBoundedInt));
+    init_ubI(new_num);
+    insert_digit_finale(new_num,1,0);
+    insert_digit_finale(new_num,5,0);
+    insert_digit_finale(new_num,3,1);
+    insert_digit_finale(new_num,7,2);
+    insert_digit_finale(new_num,9,1);
+    Calc_sum(new_num);
+    return 0;
+}

Ex2.c

@@ -0,0 +1,143 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+typedef struct Car
+{
+    int id;
+    int passengers;
+    struct Car *nextCar; 
+} Kar;
+
+Kar *initCar(int id,int passengers)
+{
+    Kar *newCar = (Kar*)malloc(sizeof(Kar));
+    newCar->id = id;
+    newCar->passengers = passengers;
+    newCar->nextCar = NULL;
+    return newCar;
+}
+
+typedef struct Train
+{
+    int length;
+    Kar *headCar;
+
+} ChooChoo;
+
+void init_new_train(ChooChoo *T)
+{
+    T-> length = 0;
+    T -> headCar = NULL;
+}
+
+
+int isTrain_without_Car(ChooChoo *T)
+{
+    return (T->length == 0 || T->headCar == NULL);
+}
+
+int addCar(ChooChoo *T,Kar *newCar,int newcarPos)
+{
+
+    if (isTrain_without_Car(T))
+    {
+        T->headCar = newCar;
+    }else
+    {
+        Kar *currCar = T->headCar;
+        for (int i=0;i<=newcarPos && currCar->nextCar != NULL;i++)
+        {
+            currCar = currCar->nextCar;
+        }
+
+        newCar->nextCar = currCar->nextCar;
+        currCar->nextCar = newCar;
+    }
+    T->length++;
+}
+
+void display_all_info(int train_or_car,ChooChoo *T)
+{
+    if (train_or_car == 0)
+        printf("Train's length is %d \n",T->length);
+    else if (train_or_car == 1)
+    {   Kar *currCar = T->headCar;
+        for (int i=0; i <= T->length && currCar != NULL;i++)
+        {
+            printf("Car with the id of %d has %d passenger(s) is in position: %d \n",currCar->id,currCar->passengers, i);
+            currCar = currCar->nextCar;
+        }
+    }
+}
+
+void PegThisCarOut(int id,ChooChoo *T)
+{
+    Kar *currCar = T->headCar;
+    if (currCar->id == id)
+    {
+        T->headCar = currCar->nextCar;
+        free(currCar);
+        T->length--;
+        return;
+    }
+
+    Kar *idkCar = currCar;
+    int cnt = 1;
+    while ((currCar->id != id) && cnt < T->length)
+    {
+        idkCar = currCar;
+        currCar = currCar->nextCar;
+        cnt++;
+    }
+
+    if (currCar != NULL)
+    {
+        idkCar->nextCar = currCar->nextCar;
+        T->length--;
+        free(currCar);
+    }
+}
+void removePassenger(int id,ChooChoo *T,int passenger_to_remove)
+{
+
+    if (isTrain_without_Car(T))
+    {   printf("Car not found man");
+        return;
+    }
+    Kar *currCar = T->headCar;
+    while (currCar->nextCar != NULL && currCar->id != id)
+        currCar = currCar->nextCar;
+    
+
+    if (currCar->id == id)
+    {   if (currCar->passengers - passenger_to_remove > 0)
+        {   
+            currCar->passengers -= passenger_to_remove;
+            printf("Car %d now has %d passengers\n",currCar->id,currCar->passengers);
+        }
+        else
+            PegThisCarOut(currCar->id,T);
+    }
+}
+
+int main()
+{
+    ChooChoo *newTrain = (ChooChoo*)malloc(sizeof(ChooChoo));
+    init_new_train(newTrain);
+    addCar(newTrain,initCar(109,54),0);
+    addCar(newTrain,initCar(832,26),1);
+    addCar(newTrain,initCar(371,26),2);
+    //display_all_info(0,newTrain);
+    display_all_info(1,newTrain);
+    printf("\n");
+    removePassenger(832,newTrain,11);
+    display_all_info(1,newTrain);
+    printf("\n");
+    removePassenger(371,newTrain,26);
+    display_all_info(1,newTrain);
+    printf("\n");
+    removePassenger(109,newTrain,55);
+    display_all_info(1,newTrain);
+
+    return 0;
+}