commit a97f290271e8467bfc6640ad1ffa0b53af77820f
Author: Lucas <lucas.morel@epita.fr>
Date:   Mon Apr 20 20:09:16 2026 +0200

    init

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2b29547
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+*.gz
+*.html
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
diff --git a/The-Nook-GamesTM/Fundamentals/basic_tree.c b/The-Nook-GamesTM/Fundamentals/basic_tree.c
new file mode 100644
index 0000000..5f2c595
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/basic_tree.c
@@ -0,0 +1,9 @@
+#include "basic_tree.h"
+
+struct node *insert(struct node *root, int value);
+
+void delete_leaf(struct node *root, int value);
+
+struct node *delete_node(struct node *root, int value);
+
+void pretty_print(struct node *root);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/basic_tree.h b/The-Nook-GamesTM/Fundamentals/basic_tree.h
new file mode 100644
index 0000000..dfbe889
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/basic_tree.h
@@ -0,0 +1,25 @@
+#ifndef BASIC_TREE_H
+#define BASIC_TREE_H
+
+struct queue {
+    struct node *node;
+    struct queue *next;
+};
+
+struct queue *enqueue(struct queue *queue, struct node *node);
+struct node *dequeue(struct queue **queue);
+void queue_destroy(struct queue *queue);
+
+
+struct node {
+    int value;
+    struct node *left;
+    struct node *right;
+};
+
+struct node *insert(struct node *root, int value);
+void delete_leaf(struct node *root, int value);
+struct node *delete_node(struct node *root, int value);
+void pretty_print(struct node *root);
+
+#endif /* ! BASIC_TREE_H */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/basic_tree_aux.c b/The-Nook-GamesTM/Fundamentals/basic_tree_aux.c
new file mode 100644
index 0000000..dbd9694
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/basic_tree_aux.c
@@ -0,0 +1,35 @@
+#include "basic_tree.h"
+#include <stdlib.h>
+
+struct queue *enqueue(struct queue *queue, struct node *node) {
+    struct queue *new_elt = malloc(sizeof(struct queue));
+    if (!new_elt)
+        return queue;
+    new_elt->node = node;
+    new_elt->next = NULL;
+    if (!queue) {
+        return new_elt;
+    }
+    struct queue *it = queue;
+    while (it->next) {
+        it = it->next;
+    }
+    it->next = new_elt;
+    return queue;
+}
+
+struct node *dequeue(struct queue **queue) {
+    if (!queue || !*queue)
+        return NULL;
+    struct node *res = (*queue)->node;
+    struct queue *temp = *queue;
+    *queue = (*queue)->next;
+    free(temp);
+    return res;
+}
+
+void queue_destroy(struct queue *queue) {
+    while (queue) {
+        dequeue(&queue);
+    }
+}
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/expansion.c b/The-Nook-GamesTM/Fundamentals/expansion.c
new file mode 100644
index 0000000..5931a94
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/expansion.c
@@ -0,0 +1,3 @@
+#include "expansion.h"
+
+char *weird_copy(const char *input);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/expansion.h b/The-Nook-GamesTM/Fundamentals/expansion.h
new file mode 100644
index 0000000..47428fd
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/expansion.h
@@ -0,0 +1,20 @@
+#ifndef EXPANSION_H
+#define EXPANSION_H
+
+#include <stddef.h>
+
+struct var {
+    char *key;
+    char *value;
+    struct var *next;
+};
+
+struct var *var_add(struct var *list, const char *key, const char *value);
+const char *var_get(struct var *list, const char *key);
+size_t var_size(struct var *list);
+int var_update(struct var *list, const char *key, const char *value);
+void var_free(struct var *list);
+
+char *weird_copy(const char *input);
+
+#endif /* ! EXPANSION_H */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/expansion_aux.c b/The-Nook-GamesTM/Fundamentals/expansion_aux.c
new file mode 100644
index 0000000..7d6952b
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/expansion_aux.c
@@ -0,0 +1,66 @@
+#include "expansion.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+struct var *var_add(struct var *list, const char *key, const char *value) {
+    struct var *node = malloc(sizeof(struct var));
+    if (!node)
+        return NULL;
+    node->key = strdup(key);
+    node->value = strdup(value);
+    if (!node->key || !node->value) {
+        free(node->key);
+        free(node->value);
+        free(node);
+        return NULL;
+    }
+    node->next = list;
+    return node;
+}
+
+const char *var_get(struct var *list, const char *key) {
+    while (list)
+    {
+        if (strcmp(list->key, key) == 0)
+            return list->value;
+        list = list->next;
+    }
+    return NULL;
+}
+
+size_t var_size(struct var *list) {
+    size_t n = 0;
+    while (list)
+    {
+        n++;
+        list = list->next;
+    }
+    return n;
+}
+
+int var_update(struct var *list, const char *key, const char *value) {
+    while (list)
+    {
+        if (strcmp(list->key, key) == 0) {
+            char *new_val = strdup(value);
+            if (!new_val)
+                return -1;
+            free(list->value);
+            list->value = new_val;
+            return 0;
+        }
+        list = list->next;
+    }
+    return -1;
+}
+
+void var_free(struct var *list) {
+    while (list) {
+        struct var *next = list->next;
+        free(list->key);
+        free(list->value);
+        free(list);
+        list = next;
+    }
+}
diff --git a/The-Nook-GamesTM/Fundamentals/parsing.c b/The-Nook-GamesTM/Fundamentals/parsing.c
new file mode 100644
index 0000000..f4ef08b
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/parsing.c
@@ -0,0 +1,13 @@
+#include "parsing.h"
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+struct node *create_node(const char *line);
+
+struct node *parse_file(const char *filename);
+
+void execute_tree(struct node *node, int value);
+
+int main(int argc, char *argv[]);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/parsing.h b/The-Nook-GamesTM/Fundamentals/parsing.h
new file mode 100644
index 0000000..802ea7c
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/parsing.h
@@ -0,0 +1,49 @@
+#ifndef PARSING_H
+#define PARSING_H
+
+#include <stddef.h>
+
+enum node_type {
+    EMPTY,
+    PLUS,
+    MINUS,
+    PRINT
+};
+
+enum child {
+    LEFT,
+    RIGHT
+};
+
+enum condition_type {
+    INT,
+    CHILD
+};
+
+union condition {
+    int n;
+    enum child child;
+};
+
+struct node {
+    enum node_type node_type;
+    union condition condition;
+    enum condition_type condition_type;
+    struct node *left;
+    struct node *right;
+};
+
+struct queue {
+    struct node *node;
+    struct queue *next;
+};
+
+struct queue *enqueue(struct queue *queue, struct node *node);
+struct node *dequeue(struct queue **queue);
+void queue_destroy(struct queue *queue);
+
+struct node *create_node(const char *line);
+struct node *parse_file(const char *filename);
+void execute_tree(struct node *node, int value);
+
+#endif /* ! PARSING_H */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/parsing_aux.c b/The-Nook-GamesTM/Fundamentals/parsing_aux.c
new file mode 100644
index 0000000..238772c
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/parsing_aux.c
@@ -0,0 +1,35 @@
+#include "parsing.h"
+#include <stdlib.h>
+
+struct queue *enqueue(struct queue *queue, struct node *node) {
+    struct queue *new_elt = malloc(sizeof(struct queue));
+    if (!new_elt)
+        return queue;
+    new_elt->node = node;
+    new_elt->next = NULL;
+    if (!queue) {
+        return new_elt;
+    }
+    struct queue *it = queue;
+    while (it->next) {
+        it = it->next;
+    }
+    it->next = new_elt;
+    return queue;
+}
+
+struct node *dequeue(struct queue **queue) {
+    if (!queue || !*queue)
+        return NULL;
+    struct node *res = (*queue)->node;
+    struct queue *temp = *queue;
+    *queue = (*queue)->next;
+    free(temp);
+    return res;
+}
+
+void queue_destroy(struct queue *queue) {
+    while (queue) {
+        dequeue(&queue);
+    }
+}
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/vector_tree.c b/The-Nook-GamesTM/Fundamentals/vector_tree.c
new file mode 100644
index 0000000..5e5ac7e
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/vector_tree.c
@@ -0,0 +1,7 @@
+#include "vector_tree.h"
+
+struct vector *insert(struct vector *tree, int value);
+
+void delete_node(struct vector *tree, int value);
+
+void pretty_print(struct vector *tree);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Fundamentals/vector_tree.h b/The-Nook-GamesTM/Fundamentals/vector_tree.h
new file mode 100644
index 0000000..4de8f76
--- /dev/null
+++ b/The-Nook-GamesTM/Fundamentals/vector_tree.h
@@ -0,0 +1,16 @@
+#ifndef VECTOR_TREE
+#define VECTOR_TREE
+
+#include <stddef.h>
+
+struct vector {
+    int *values;
+    size_t size;
+    size_t nb_elements;
+};
+
+struct vector *insert(struct vector *tree, int value);
+void delete_node(struct vector *tree, int value);
+void pretty_print(struct vector *tree);
+
+#endif /* ! VECTOR_TREE */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/evaluate_rpn.c b/The-Nook-GamesTM/Proficiencies/evaluate_rpn.c
new file mode 100644
index 0000000..97cec10
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/evaluate_rpn.c
@@ -0,0 +1,3 @@
+#include "evaluate_rpn.h"
+
+int evaluate_rpn(struct queue *queue);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/evaluate_rpn.h b/The-Nook-GamesTM/Proficiencies/evaluate_rpn.h
new file mode 100644
index 0000000..34a9cd6
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/evaluate_rpn.h
@@ -0,0 +1,8 @@
+#ifndef EVALUATE_RPN_H
+#define EVALUATE_RPN_H
+
+#include "queue.h"
+
+int evaluate_rpn(struct queue *queue);
+
+#endif /* ! EVALUATE_RPN_H*/
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/main.c b/The-Nook-GamesTM/Proficiencies/main.c
new file mode 100644
index 0000000..d746ac7
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/main.c
@@ -0,0 +1 @@
+int main(int argc, char** argv);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/parse_exp.c b/The-Nook-GamesTM/Proficiencies/parse_exp.c
new file mode 100644
index 0000000..7e005ee
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/parse_exp.c
@@ -0,0 +1,3 @@
+#include "parse_exp.h"
+
+struct queue *parse_expression(const char *str);
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/parse_exp.h b/The-Nook-GamesTM/Proficiencies/parse_exp.h
new file mode 100644
index 0000000..95ec5a9
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/parse_exp.h
@@ -0,0 +1,8 @@
+#ifndef PARSE_EXP_H
+#define PARSE_EXP_H
+
+#include "queue.h"
+
+struct queue *parse_expression(const char *str);
+
+#endif /* ! PARSE_EXP_H */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/queue.c b/The-Nook-GamesTM/Proficiencies/queue.c
new file mode 100644
index 0000000..49ab79f
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/queue.c
@@ -0,0 +1,41 @@
+#include "queue.h"
+
+struct queue *enqueue(struct queue *queue, struct expression_element* element) {
+    struct queue *new_elt = calloc(1,sizeof(struct queue));
+
+    new_elt->data = element;
+
+    if(!queue)
+        return new_elt;
+
+    struct queue* current = queue;
+
+    while(current->next)
+        current = current->next;
+
+    current->next = new_elt;
+
+    return queue;
+}
+
+struct expression_element* dequeue(struct queue **queue) {
+    if (!queue || !*queue)
+        return NULL;
+    
+    struct queue* removed = *queue;
+    struct expression_element* res = removed->data;
+
+    *queue = removed->next;
+    free(removed);
+
+    return res;
+}
+
+void queue_destroy(struct queue **queue) {
+    if(!queue)
+        return;
+    while (*queue) {
+        struct expression_element* dequeued = dequeue(queue);
+        free(dequeued);
+    }
+}
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/queue.h b/The-Nook-GamesTM/Proficiencies/queue.h
new file mode 100644
index 0000000..96c7512
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/queue.h
@@ -0,0 +1,31 @@
+#ifndef QUEUE_H
+#define QUEUE_H
+
+#include <stdlib.h>
+
+union element_type
+{
+    int operand;
+    char operator;
+};
+
+enum element_tag {
+    TOKEN_OPERAND,
+    TOKEN_OPERATOR
+};
+
+struct expression_element {
+    enum element_tag tag;
+    union element_type data;
+};
+
+struct queue {
+    struct expression_element* data;
+    struct queue *next;
+};
+
+struct queue *enqueue(struct queue *queue, struct expression_element* element);
+struct expression_element* dequeue(struct queue **queue);
+void queue_destroy(struct queue **queue);
+
+#endif /* ! QUEUE_H */
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/stack.c b/The-Nook-GamesTM/Proficiencies/stack.c
new file mode 100644
index 0000000..71b583c
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/stack.c
@@ -0,0 +1,36 @@
+#include "stack.h"
+
+struct stack *stack_push(struct stack *s, struct expression_element e)
+{
+    struct stack *new = malloc(sizeof(struct stack));
+    new->next = NULL;
+    new->data = e;
+    if (s == NULL)
+        return new;
+    new->next = s;
+    return new;
+}
+
+struct stack *stack_pop(struct stack *s)
+{
+    if (!s)
+        return NULL;
+    struct stack *next = s->next;
+    free(s);
+    return next;
+}
+
+void stack_destroy(struct stack **s)
+{
+    if(!s)
+        return;
+    while (*s)
+    {
+        *s = stack_pop(*s);
+    }
+}
+
+struct expression_element stack_peek(struct stack *s)
+{
+    return s->data;
+}
\ No newline at end of file
diff --git a/The-Nook-GamesTM/Proficiencies/stack.h b/The-Nook-GamesTM/Proficiencies/stack.h
new file mode 100644
index 0000000..4dca8cf
--- /dev/null
+++ b/The-Nook-GamesTM/Proficiencies/stack.h
@@ -0,0 +1,40 @@
+#ifndef STACK_H
+#define STACK_H
+
+#include <stdlib.h>
+
+union element_type
+{
+    int operand;
+    char operator;
+};
+
+enum element_tag {
+    TOKEN_OPERAND,
+    TOKEN_OPERATOR
+};
+
+struct expression_element {
+    enum element_tag tag;
+    union element_type data;
+};
+
+struct stack {
+    struct expression_element data;
+    struct stack *next;
+};
+
+/* Push a new element to the stack and returns the new top */
+struct stack *stack_push(struct stack *s, struct expression_element element);
+
+/* Pop from the stack and returns its new top */
+struct stack *stack_pop(struct stack *s);
+
+/* Empty and frees the whole stack */
+void stack_destroy(struct stack **s);
+
+/* Returns the current top of the stack */
+struct expression_element stack_peek(struct stack *s);
+
+
+#endif /* ! STACK_H */
\ No newline at end of file