From 71b59b60e2a9146affa5219136dc1386837f1b2a Mon Sep 17 00:00:00 2001
From: Lorenzo Bianchi <bianchi_lorenzo@hotmail.com>
Date: Thu, 20 Apr 2023 12:40:51 +0200
Subject: [PATCH] Added initial files

---
 include/arch.h           |  10 +++
 include/coor.h           |   9 +++
 include/priority_queue.h |  40 +++++++++++
 include/queue.h          |  48 +++++++++++++
 include/vector.h         | 104 +++++++++++++++++++++++++++
 src/priority_queue.c     | 130 ++++++++++++++++++++++++++++++++++
 src/queue.c              |  87 +++++++++++++++++++++++
 src/vector.c             | 147 +++++++++++++++++++++++++++++++++++++++
 8 files changed, 575 insertions(+)
 create mode 100644 include/arch.h
 create mode 100644 include/coor.h
 create mode 100644 include/priority_queue.h
 create mode 100644 include/queue.h
 create mode 100644 include/vector.h
 create mode 100644 src/priority_queue.c
 create mode 100644 src/queue.c
 create mode 100644 src/vector.c

diff --git a/include/arch.h b/include/arch.h
new file mode 100644
index 0000000..e643d97
--- /dev/null
+++ b/include/arch.h
@@ -0,0 +1,10 @@
+#ifndef ARCH_H
+#define ARCH_H
+
+typedef struct arch{
+    int cost;
+    int a;
+    int b;
+} arch;
+
+#endif
\ No newline at end of file
diff --git a/include/coor.h b/include/coor.h
new file mode 100644
index 0000000..95f801a
--- /dev/null
+++ b/include/coor.h
@@ -0,0 +1,9 @@
+#ifndef COOR_H
+#define COOR_H
+
+typedef struct coor{
+    int x;
+    int y;
+} coor;
+
+#endif
\ No newline at end of file
diff --git a/include/priority_queue.h b/include/priority_queue.h
new file mode 100644
index 0000000..5f5c3e9
--- /dev/null
+++ b/include/priority_queue.h
@@ -0,0 +1,40 @@
+#ifndef PRIORITY_QUEUE_H
+#define PRIORITY_QUEUE_H
+
+#define PRIORITY_QUEUE_INIT_GROWTH_FACT 2
+
+#define priority_queue(pq, compare) priority_queue* pq = newPriority_queue(compare);
+
+typedef struct priority_queue{
+    void** at;
+    int capacity;   
+    int size;     
+
+    int growthFactor;
+
+    void (*toString)();
+    bool (*compare)();
+} priority_queue;
+
+
+priority_queue* newPriority_queue(bool (*compare)());
+
+void priority_queueResize(priority_queue* v, int capacity);
+
+void priority_queueClear(priority_queue* pq);
+
+void priority_queuePush(priority_queue* pq, void* element);
+
+void priority_queueFree(priority_queue* pq);
+
+void priority_queueShrink_to_fit(priority_queue* pq);
+
+bool priority_queueIsEmpty(priority_queue* pq);
+
+void* priority_queueTop(priority_queue* pq);
+
+void priority_queuePop(priority_queue* pq);
+
+void priority_queuePrint(priority_queue* pq);
+
+#endif
\ No newline at end of file
diff --git a/include/queue.h b/include/queue.h
new file mode 100644
index 0000000..4db3302
--- /dev/null
+++ b/include/queue.h
@@ -0,0 +1,48 @@
+#ifndef QUEUE_H
+#define QUEUE_H
+
+#include <stdbool.h>
+
+/*
+ * Macro to create a new queue.
+ */
+#define queue(q) queue* q = newQueue();
+
+typedef struct queue_element{
+    void* next;
+    void* element;
+} queue_element;
+
+typedef struct queue{
+
+    int size;                            /*         The number of at in use           */
+    queue_element* front;                /* pointer to the first element of the queue */
+    queue_element* back;                 /* pointer to the back element of the queue  */
+
+    void (*toString)();                      /*   Pointer to toString function   */
+} queue;
+
+
+/* 
+ * Creates new queue.
+ */
+queue* newQueue();
+
+/*
+ * Adds a new element to the queue.
+ */
+void queuePush(queue* q, void* element);
+
+void queuePrint(queue* q);
+
+void queuePop(queue* q);
+
+bool queueIsEmpty(queue* q);
+
+void queueMerge(queue* q1, queue* q2);
+
+void queueClear(queue* q);
+
+void queueFree(queue* q);
+
+#endif
\ No newline at end of file
diff --git a/include/vector.h b/include/vector.h
new file mode 100644
index 0000000..e4b6468
--- /dev/null
+++ b/include/vector.h
@@ -0,0 +1,104 @@
+#ifndef VECTOR_H
+#define VECTOR_H
+
+#include <stdbool.h>
+
+/*
+ * Implementation notes:
+ * ---------------------------------------------------------------------------
+ * Use vector(vec_name) to declare a new vector (no manual allocation needed).
+ * the elements of the Vector are stored in a dynamic array.
+ * If the space in the array is ever exhausted, the implementation 
+ * multiplies the array's capacity by the growthFactor (2 by default).
+ * 
+ * To use vectorSort, the compare functions needs to be defined.
+ * To use vectorPrint, the toString function needs to be defined.
+ */
+
+
+/*
+ * Macro to declare a new vector.
+ */
+#define vector(vec) vector* vec = newVector();
+
+typedef struct vector{
+
+    void** at;                  /*  A dynamic array of the pointers to at  */
+    int capacity;               /*       The allocated size of the array   */
+    int size;                   /*        The number of at in use          */
+
+    int growthFactor;         /* How much space the vector allocates when full */
+
+    void (*toString)();             /*   Pointer to toString function   */
+    bool (*compare)();              /*  Pointer to comparator compare  */
+} vector;
+
+
+/*
+ * Creates new vector.
+ */
+vector* newVector();
+
+/*
+ * Adds a new value at the end of the vector.
+ */
+void vectorPush_back(vector* v, void* element);
+
+/*
+ * Removes the last element.
+ */
+void vectorPop_back(vector* v);
+
+/*
+ * Inserts a new element in the vector.
+ */
+void vectorInsert(vector* v, void* element, int pos);
+
+/*
+ * Removes an element in the vector.
+ */
+void vectorErase(vector* v, int pos);
+
+/*
+ * Resizes the capacity.
+ */
+void vectorResize(vector* v, int capacity);
+
+/*
+ * Clears all elements.
+ */
+void vectorClear(vector* v);
+
+/*
+ * Swaps two elements.
+ */
+void vectorSwap(void** a, void** b);
+
+/*
+ * Converts the vector to a printable string representation.
+ * ToString need to be defined.
+ */
+void vectorPrint(vector* v);
+
+/*
+ * Sorts the vector using merge sort.
+ * Compare needs to be defined.
+ */
+void vectorSort(vector* v);
+
+/*
+ * Makes vector capacity equal to size.
+ */
+void vectorShrink_to_fit(vector* v);
+
+/*
+ * Returns true if this vector contains no element.
+ */
+bool vectorIsEmpty(vector* v);
+
+/*
+ * Frees the allocated memory for the vector.
+ */
+void vectorFree(vector* v);
+
+#endif
\ No newline at end of file
diff --git a/src/priority_queue.c b/src/priority_queue.c
new file mode 100644
index 0000000..9c3313d
--- /dev/null
+++ b/src/priority_queue.c
@@ -0,0 +1,130 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include "priority_queue.h"
+
+
+void priority_queueFixheap(priority_queue* q, int i);
+void priority_queueHeapify(priority_queue* queue, int i);
+void priority_queueSwap(void** a, void** b);
+
+priority_queue* newPriority_queue(bool (*compare)()){
+    priority_queue* pq = (priority_queue*)malloc(sizeof(priority_queue));
+    pq->size = 0;
+    pq->capacity = 0;
+    pq->growthFactor = PRIORITY_QUEUE_INIT_GROWTH_FACT;
+
+    pq->compare = compare;
+    pq->toString = NULL;
+
+    return pq;
+}
+
+void priority_queuePush(priority_queue* pq, void* element){
+    if(pq->size == pq->capacity){
+        if(pq->capacity)
+            priority_queueResize(pq, pq->capacity * pq->growthFactor);
+        else
+            priority_queueResize(pq, 1);
+    }
+
+    pq->at[pq->size] = element;
+    pq->size++;
+
+    priority_queueFixheap(pq, pq->size-1);
+
+}
+
+void priority_queueFixheap(priority_queue* pq, int i){
+    if(!i)
+        return;
+    if(pq->compare(pq->at[(i-1)/2], pq->at[i]))
+        priority_queueSwap(pq->at[i], pq->at[(i-1)/2]);
+
+    priority_queueFixheap(pq, (i-1)/2);
+}
+
+void priority_queuePop(priority_queue* pq){
+    if(!pq->size){
+        fprintf(stderr, "POP ON EMPTY PRIORITY_QUEUE\n");
+        return;
+    }
+
+    priority_queueSwap(pq->at[0], pq->at[pq->size-1]);
+    pq->size--;
+    priority_queueHeapify(pq, 0);
+}
+
+void priority_queueHeapify(priority_queue* pq, int i){
+    if(i >= (pq->size)/2)
+        return;
+    
+    int minson;
+    if(pq->size-1 == 2*i+1 || !pq->compare(pq->at[2*i+1], pq->at[2*i+2]))
+        minson = 2*i+1;
+    else
+        minson = 2*i+2;
+
+    if(pq->compare(pq->at[i], pq->at[minson])){
+        priority_queueSwap(pq->at[i], pq->at[minson]);
+        priority_queueHeapify(pq, minson);
+    }
+}
+
+void priority_queueSwap(void** a, void** b){
+    void* tmp = *a;
+    *a = *b;
+    *b = tmp;
+}
+
+void priority_queueResize(priority_queue* pq, int capacity){
+    for(int i=pq->size; i>capacity; i--)
+        free(pq->at[i-1]);
+    
+    if(capacity){
+        void **at = realloc(pq->at, sizeof(void *) * capacity);
+        pq->at = at;
+        pq->capacity = capacity;
+    }else{
+        free(pq->at);
+    }
+}
+
+void priority_queueClear(priority_queue* pq){
+    priority_queueResize(pq, 0);
+    pq->size = 0;
+}
+
+void priority_queueFree(priority_queue* pq){
+    priority_queueClear(pq);
+    free(pq);
+}
+
+void priority_queueShrink_to_fit(priority_queue* pq){
+    priority_queueResize(pq, pq->size);
+}
+
+bool priority_queueIsEmpty(priority_queue* pq){
+    return pq->size > 0 ? false : true;
+}
+
+void* priority_queueTop(priority_queue* pq){
+    if(!pq->size){
+        fprintf(stderr, "PRIORITY_QUEUE IS EMPTY\n");
+        return NULL;
+    }
+
+    return pq->at[0];
+}
+
+void priority_queuePrint(priority_queue* pq){
+    if(pq->toString == NULL){
+        fprintf(stderr, "TOSTRING NOT DEFINED\n");
+        return;
+    }
+
+    for(int i=0; i<pq->size; i++)
+        pq->toString(pq->at[i]);
+    
+    printf("\n");
+}
\ No newline at end of file
diff --git a/src/queue.c b/src/queue.c
new file mode 100644
index 0000000..68d40c0
--- /dev/null
+++ b/src/queue.c
@@ -0,0 +1,87 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "queue.h"
+
+queue* newQueue(){
+    queue* tmp = (queue*)malloc(sizeof(queue));
+    tmp->size = 0;
+
+    tmp->toString = NULL;
+    tmp->front = NULL;
+    tmp->back = NULL;
+
+    return tmp;
+}
+
+void queuePush(queue* q, void* element){
+    queue_element* qel = (queue_element*)malloc(sizeof(queue_element));
+    qel->element = element;
+    qel->next = NULL;
+
+    if(queueIsEmpty(q)){
+        q->front = qel;
+        q->back = qel;
+    }else{
+        q->back->next = qel;
+        q->back = qel;
+    }
+
+    q->size++;
+}
+
+void queuePrint(queue* q){
+    if(q->toString == NULL){
+        fprintf(stderr, "TOSTRING NOT DEFINED\n");
+        return;
+    }
+
+    queue_element* tmp = q->front;
+    while(tmp){
+        q->toString(tmp->element);
+        tmp = tmp->next;
+        printf("\n");
+    }
+    
+    printf("\n");
+}
+
+void queuePop(queue* q){
+    if(queueIsEmpty(q)){
+        fprintf(stderr, "QUEUE IS EMTPY\n");
+        return;
+    }
+
+    queue_element* tmp = q->front->next;
+    free(q->front->element);
+    free(q->front);
+    q->front = tmp;
+    
+    q->size--;
+}
+
+bool queueIsEmpty(queue* q){
+    return q->size == 0;
+}
+
+void queueMerge(queue* q1, queue* q2){
+    q1->back->next = q2->front;
+    q1->size += q2->size;
+    q2->size = 0;
+}
+
+void queueClear(queue* q){
+    queue_element* tmp = q->front, *tp;
+    while(tmp){
+        tp = tmp->next;
+        free(tmp);
+        tmp = tp;
+    }
+
+    q->front = NULL;
+    q->size = 0;
+}
+
+void queueFree(queue* q){
+    queueClear(q);
+    free(q);
+}
diff --git a/src/vector.c b/src/vector.c
new file mode 100644
index 0000000..fca82ac
--- /dev/null
+++ b/src/vector.c
@@ -0,0 +1,147 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "vector.h"
+
+void mergeSort(vector* v, bool (*compare)(), int i, int j);
+
+vector* newVector(){
+    vector* v = (vector *)malloc(sizeof(vector));
+    v->size = 0;
+    v->capacity = 0;
+
+    v->growthFactor = 2;
+
+    v->compare = NULL;
+    v->toString = NULL;
+
+    return v;
+}
+
+void vectorPush_back(vector* v, void* element){
+    if(v->size == v->capacity){
+        if(v->capacity)
+            vectorResize(v, v->capacity * v->growthFactor);
+        else
+            vectorResize(v, 1);
+    }
+
+    v->at[v->size] = element;
+    v->size++;
+}
+
+void vectorPop_back(vector* v){
+    if(!v->size)
+        return;
+
+    free(v->at[v->size-1]);
+    v->size--;
+}
+
+void vectorInsert(vector* v, void* element, int pos){
+    if(pos > v->size || pos < 0){
+        fprintf(stderr, "INSERT INVALID\n");
+        return;
+    }
+
+    vectorPush_back(v, v->at[v->size-1]);
+    for(int i=v->size-1; i>pos; i--)
+        v->at[i] = v->at[i-1];
+    
+    v->at[pos] = element;
+}
+
+void vectorErase(vector* v, int pos){
+    if(pos > v->size || pos < 0){
+        fprintf(stderr, "ERASE INVALID\n");
+        return;
+    }
+
+    free(v->at[pos]);
+
+    for(int i=pos; i<v->size; i++){
+        v->at[i] = v->at[i+1];
+    }
+    v->size--;
+}
+
+void vectorResize(vector* v, int capacity){
+    for(int i=v->size; i>capacity; i--)
+        free(v->at[i-1]);
+    
+
+        void **at = realloc(v->at, sizeof(void *) * capacity);
+        v->at = at;
+        v->capacity = capacity;
+}
+
+void vectorClear(vector* v){
+    vectorResize(v, 0);
+    v->size = 0;
+}
+
+void vectorSwap(void** a, void** b){
+    void* tmp = *a;
+    *a = *b;
+    *b = tmp;
+}
+
+void vectorPrint(vector* v){
+    if(v->toString == NULL){
+        fprintf(stderr, "TOSTRING NOT DEFINED\n");
+        return;
+    }
+
+    for(int i=0; i<v->size; i++)
+        v->toString(v->at[i]);
+    
+    printf("\n");
+}
+
+void vectorSort(vector* v){
+    if(!v->compare){
+        fprintf(stderr, "compare NOT DEFINED\n");
+        return;
+    }
+
+    mergeSort(v, v->compare, 0, v->size);
+}
+
+void mergeSort(vector* v, bool (*compare)(), int i, int j){
+    if(i == j-1)
+        return;
+
+    mergeSort(v, compare, i, (i+j)/2);
+    mergeSort(v, compare, (i+j)/2, j);
+    
+    vector(tmp);
+    int h = i, k = (i+j)/2;
+
+    while(h<(i+j)/2 || k<j){
+        if(h==(i+j)/2 || (k<j && compare(v->at[h], v->at[k]))){
+            vectorPush_back(tmp, v->at[k]);
+            k++;
+        }else{
+            vectorPush_back(tmp, v->at[h]);
+            h++;
+        }   
+    }
+
+    for(h=i; h<j; h++)
+        v->at[h] = tmp->at[h-i];
+    
+    free(tmp->at);
+    free(tmp);
+}
+
+void vectorShrink_to_fit(vector* v){
+    vectorResize(v, v->size);
+}
+
+bool vectorIsEmpty(vector* v){
+    return v->size > 0 ? false : true;
+}
+
+void vectorFree(vector *v){
+    vectorClear(v);
+    free(v);
+}