diff --git a/arbre.c b/arbre.c
new file mode 100644
index 0000000..2c4db25
--- /dev/null
+++ b/arbre.c
@@ -0,0 +1,55 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+
+typedef struct arbre{
+    char val;
+    char *suite[26];
+    bool finmot; //1 si fin de mot
+}Arbre;
+
+typedef struct dico {
+    Arbre *alpha[26];
+}Dico;
+
+
+
+
+
+
+void arbre_vide(struct arbre ** pt_arbre)
+{
+	*pt_arbre = NULL;
+}
+
+bool est_vide(struct arbre *arbre)
+{
+	return arbre==NULL;
+}
+
+bool fin_de_mot(struct arbre *arbre)
+{
+	return arbre->finmot;
+}
+
+void cons_dico(struct dico **pt_dico,char val){
+    struct dico *mondico=malloc(sizeof(struct dico));
+    mondico->alpha[val-97]=val; // (ascii)->a = 97
+    (*pt_dico)=mondico;
+}
+
+void cons_arbre(struct arbre **pt_arbre,char val){
+    struct arbre *monarbre=malloc(sizeof(struct arbre));
+    mondico->alpha[val-97]=val; // (ascii)->a = 97
+    
+}
+
+int main (){
+    
+    
+    
+    
+    
+    return 0;
+}
--
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