diff --git a/Digby_Real_Estate/Fundamentals/most_frequent.c b/Digby_Real_Estate/Fundamentals/most_frequent.c
index e69de29..85d010c 100644
--- a/Digby_Real_Estate/Fundamentals/most_frequent.c
+++ b/Digby_Real_Estate/Fundamentals/most_frequent.c
@@ -0,0 +1,76 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+//###############################
+// ATTENTION CE CODE EST  MOCHE #
+//###############################
+
+char most_frequent(const char *str){
+    
+    //max
+    //temp max
+    //
+    //lettre
+    //temp lettre
+    //index
+    //index_clc
+
+
+    char *cha = malloc(2 * sizeof(char));
+    //{ lettre, temp}
+    if (cha == NULL) return 0;
+
+    *cha = 0; // lettre 
+    *(cha + 1) = 0; //lettre pendant le clc
+
+    int *values = malloc (4 * sizeof(int));
+    if(values == NULL) return 0 ;
+    //{ max, temp max, index, index_clc}
+   
+    *values = 0;       // Maximum
+    *(values + 1) = 0; // Max temporaire
+    *(values + 2) = 0; // Index de la chaine 
+    *(values + 3) = 0; // Index de calcul
+    
+    //deplacement (index de la chaine)
+    while (*(str + *(values + 2)) != '\0'){
+        
+        *(cha + 1) = *(str + *(values + 2)); //Traitement de la lettre à l'index x 
+        *(values + 1) = 0; // RESET du max de clc
+        *(values + 3) = 0; // RESET de l'index de clc
+        
+        //calcul pas du tt opti mais bon
+        while (*(str + *(values + 3)) != '\0'){
+
+            //si la lettre en traitment est la mm que celle rencontree
+            if (*(cha + 1) == *(str + *(values + 3))) {
+                (*(values + 1)) ++;
+            }
+            
+            (*(values + 3)) ++;
+        }
+
+        if (*values < *(values + 1)) {
+            *values = *(values + 1); // temp -> max
+            *cha = *(cha + 1);
+        }
+
+        (*(values + 2)) ++;
+    }
+    free(values);
+    return *cha;
+}
+/*
+int main () {
+
+    char test = most_frequent("WRYYYY!1!");       // 'Y'
+    printf("%c\n", test);
+
+    test = most_frequent("ORA ORA ORA!");    // 'O'
+    printf("%c\n",test);
+    test = most_frequent("hello warudo!");   // 'l'
+    printf("%c\n", test);
+    most_frequent("oRA ora oRa?");    // 'o'
+
+
+}*/
diff --git a/Digby_Real_Estate/Fundamentals/my_factor.c b/Digby_Real_Estate/Fundamentals/my_factor.c
index e69de29..813afd2 100644
--- a/Digby_Real_Estate/Fundamentals/my_factor.c
+++ b/Digby_Real_Estate/Fundamentals/my_factor.c
@@ -0,0 +1,43 @@
+#include <stdlib.h>
+#include <stdio.h>
+//utiliser la recu ?
+//possible mais avec fct aux
+//malloc dans my_factor puis appelle aux (poineur, n)
+int *my_factor(int n){
+
+    if (n <= 0) return NULL;
+    if (n == 1) return 1;
+
+    int cnt = 0;
+    int tmp = n;
+    int div = 2;
+
+    while(tmp > 1){
+        if (tmp % div == 0){
+        cnt ++;
+        tmp = tmp /div
+        }
+        else div ++;
+    }
+
+    int *rslt = malloc((cnt + 1)* sizeof(int));
+    if(rslt == NULL) return NULL;
+    
+    int index = 0;
+    int *kebab = rslt;
+    tmp = n;
+    div = 2;
+    
+    while (temps > 1) {
+        if (tmp % div == 0){
+            *(kebab + index) = div;
+            index ++;
+            tmp = tmp /  div;
+        }
+        else div ++;
+    }
+
+    *kebab = 0;
+    return rslt;
+    
+}
diff --git a/Digby_Real_Estate/Fundamentals/my_strapp.c b/Digby_Real_Estate/Fundamentals/my_strapp.c
index e69de29..f18cabe 100644
--- a/Digby_Real_Estate/Fundamentals/my_strapp.c
+++ b/Digby_Real_Estate/Fundamentals/my_strapp.c
@@ -0,0 +1,60 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+char *strdup(const char *s); 
+
+
+void my_strapp(char *src, char **dest){  
+
+    if (src == NULL || dest == NULL) return;
+
+    //taille src
+    int index = 0;
+    while (*(src + index)) index ++;
+    
+    //taille desti
+    int index_dest = 0;
+    while (*(*dest + index_dest)) index_dest ++;
+
+    //realloc des dest avec la taille de src
+    *dest = realloc(*dest, index + index_dest + 1);
+    //int *dest = realloc(*dest, index);
+    
+    if (dest == NULL) return;
+
+    index = 0;
+    /*while(*(new + index_dest)){ 
+        
+        printf("%c", *(new + index_dest));
+
+        index_dest ++;
+    }
+    printf("\n");
+    //index_dest --;
+    while(*(src + index)){
+
+        *(new + (index_dest+ index)) = *(src + index);
+        index ++;
+    }*/
+ 
+    while(*(src + index)){
+        *(*dest + index_dest + index) = *(src + index);
+        index ++;
+    }
+
+    *(dest + index_dest + index + 1) = '\0';
+
+
+}
+/*
+int main(){
+    
+    char *src = strdup("World!");
+    char *dest = strdup("Hello, ");
+    char **dest_ptr = &dest;
+    
+    my_strapp(src, dest_ptr); // Hello, World!
+    printf("%s", *dest_ptr);
+    free(src);
+    free(dest);
+}*/
diff --git a/Digby_Real_Estate/Fundamentals/my_weirddup.c b/Digby_Real_Estate/Fundamentals/my_weirddup.c
index 7f6f815..04ca12a 100644
--- a/Digby_Real_Estate/Fundamentals/my_weirddup.c
+++ b/Digby_Real_Estate/Fundamentals/my_weirddup.c
@@ -6,45 +6,54 @@ char *my_weirddup(char *src){
     if(src == NULL) return NULL;
 
     int index = 0;
-    while(*(src)){
+    while(*(src + index)){
         index ++;
-        src ++;
     }
     
-    char *str =  malloc(index + 1);
+    char *str =  malloc(index);
     if(str == NULL) return NULL; 
     
-    //src = 0;
+    //printf("test");
     
     char lettre = ' ';
     index = 0;
-    
-    while (*src){
-        lettre = *src;
 
-        //maj
+    while (*(src + index) != '\0'){
+
+        lettre = *(src + index);
+
+        //MAJ
         if (lettre > 64 && lettre < 91){
             if (lettre == 'Z') lettre = 'A';
-            else lettre += 1;
+            else lettre ++;
         }
-
+    
         //min
-        else if (lettre > 97 && lettre < 124 ){
-            
-            if (lettre == 'z')lettre = 'a';
-            else lettre += 1;    
+        if (lettre > 96 && lettre < 124) {
+            if (lettre == 'z') lettre = 'a';
+            else lettre ++;
         }
 
-        *str = lettre;
-        src ++;
-        str ++;
+        *(str + index) = lettre;
+        index ++;
     }
-
+    
+    *(str + index + 1) = '\0';
     return str;
-}
-
-int main(){
-
-    printf("%s",my_weirddup("abb"));
+
+}
+//TODO MARCHE MAIS À COMPLETER
+
+int main(int args ,char **arg){
+
+    int index = 1;
+    char *rslt = "";
+    
+    while(index < args){
+        rslt = my_weirddup(*(arg + index));
+        printf("%s\n",rslt);
+        free(rslt);
+        index ++;
+        }
 
 }
diff --git a/Digby_Real_Estate/Fundamentals/replace.c b/Digby_Real_Estate/Fundamentals/replace.c
index e69de29..2dd5dff 100644
--- a/Digby_Real_Estate/Fundamentals/replace.c
+++ b/Digby_Real_Estate/Fundamentals/replace.c
@@ -0,0 +1,73 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+char *replace(char *str, char *sub){
+
+    //clc taille sub
+    //nbr * x taille sub
+
+    int len_fin = 0;
+
+    //clc taille str
+    int index = 0;
+    int nb_etoile = 0;
+    while( *(str + index)){
+        if ( *(str + index) == '*') nb_etoile ++;
+
+        index ++;
+
+    }
+    len_fin = index;
+    
+    //clc taille sub
+    index = 0;
+    while (*(sub + index)) index ++;
+
+    //longueur finale
+    len_fin += nb_etoile * index;
+    
+
+    char *rslt = malloc(len_fin);
+    if (rslt == NULL) return  NULL;
+        
+    index = 0;
+    int index_str = 0;
+    int index_sub = 0;
+    //parcours total
+    while(*(str + index_str)){
+        
+        index_sub = 0;
+        //si le char est une etoile
+        if (*(str + index_str) == '*'){
+            //copie de sub dans rslt
+            while(*(sub + index_sub)){
+                *(rslt + index) = *(sub + index_sub);
+                index_sub ++;
+                index ++;
+            }
+            
+        }
+        else{
+            *(rslt + index) = *(str + index_str);
+            index ++;
+        }
+        index_str ++;
+
+    }
+
+    return rslt;
+
+}
+
+/*
+int main(){
+    
+    
+    char *test =replace("Hello *", "World!");     // Hello World!
+    printf("%s\n", test);
+    free(test);
+    //printf("ici");
+    test = replace("*H*e*l*l*o*", "BIM");    // BIMHBIMeBIMlBIMlBIMoBIM
+    printf("%s\n", test);
+    free(test);
+}*/
diff --git a/Digby_Real_Estate/Fundamentals/test b/Digby_Real_Estate/Fundamentals/test
deleted file mode 100755
index 7a00858..0000000
Binary files a/Digby_Real_Estate/Fundamentals/test and /dev/null differ
diff --git a/Digby_Real_Estate/Fundamentals/trap_sweeper.c b/Digby_Real_Estate/Fundamentals/trap_sweeper.c
index e69de29..016d76c 100644
--- a/Digby_Real_Estate/Fundamentals/trap_sweeper.c
+++ b/Digby_Real_Estate/Fundamentals/trap_sweeper.c
@@ -0,0 +1,81 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int **trap_sweeper(char **mat, int rows, int cols){
+    //Vraiment la merde les matrices
+    int **mat_clc = malloc(rows * sizeof(int));
+    if (mat_clc == NULL) { return NULL;}
+
+    // index, x, temp
+    // le y = rows actuel
+    int *values = calloc(5,sizeof(int));
+    if (values == NULL) { free(mat_clc); return NULL;}
+    //0 -> x
+    //1 -> y
+    //2 -> xt
+    //3 -> yt 
+    //4 -> count
+    
+    *(values + 1) = 0;
+
+    while (*(values + 1 ) < rows){
+
+        *(mat_clc + *(values + 1)) = calloc(cols, sizeof(int));
+        *values = 0;
+
+        while(*values < cols){
+            
+            if ( *( *(mat + *(values + 1)) + *values) == '#'){
+            
+                *( *(mat_clc + *(values + 1)) + *values) = -1;
+
+            }
+            else {
+
+                *(values + 4) = 0;
+                *(values + 3) = *(values + 1) - 1;
+
+                while (*(values + 3) <= *(values + 1) + 1){
+                    
+                    *(values + 2) = *values - 1;
+                    while (*(values + 2) <= *values + 1){
+                        
+                        if(*(values + 3) >= 0 && *(values + 3) < rows && *(values + 2) >= 0 && *(values + 2) < cols) {
+                    
+                            if(*( *(mat + *(values + 3)) + *(values + 2)) == '#') (*(values + 4)) ++;
+                        }
+                        (*(values + 2)) ++;
+                    }
+                    (*(values + 3)) ++;
+                }
+                *(*(mat_clc + *(values + 1)) + *values) = *(values + 4);
+            }
+            (*values) ++;
+        }
+        (*(values + 1)) ++;
+    }
+    
+    return mat_clc;
+
+}
+/*
+int main()
+{
+    char *mat1[] = {
+        "OOO#O",    // 1  1  2 -1  2
+        "#OO#O",    //-1  3  4 -1  2
+        "O##OO",    // 2 -1 -1  3  2
+        "OOOO#"     // 1  2  2  2 -1
+    };
+    int **res = trap_sweeper(mat1, 4, 5);
+    for (int i = 0; i < 4; ++i)
+    {
+        for (int j = 0; j < 5; ++j)
+            printf("%d ", res[i][j]);
+        printf("\n");
+    }
+
+    for (int i = 0; i < 4; ++i)
+        free(res[i]);
+    free(res);
+}*/