diff --git a/DEV1.1/TP19/complexe b/DEV1.1/TP19/complexe
new file mode 100755
index 0000000..25de9b0
Binary files /dev/null and b/DEV1.1/TP19/complexe differ
diff --git a/DEV1.1/TP19/complexe.c b/DEV1.1/TP19/complexe.c
new file mode 100644
index 0000000..ac4e934
--- /dev/null
+++ b/DEV1.1/TP19/complexe.c
@@ -0,0 +1,49 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+struct nbrcomplex{
+	float x;
+	float y;
+};
+
+typedef struct nbrcomplex complex;
+
+void afficher(complex z){
+    printf("%f + %fi\n",z.x,z.y);
+}
+
+float module(complex z){
+    float res=sqrt(pow(z.x,2)+pow(z.y,2));
+	float resrac=pow(res,0.5);
+    return resrac;
+}
+
+complex inverse(complex z){
+    complex a;
+    a.x = z.x/pow(module(z),2);
+	a.y =z.y/pow(module(z),2);
+    return a;
+}
+
+complex conjugue(complex z){
+    complex b;
+    b.x = z.x;
+	b.y =-z.y;
+    return b;
+}
+
+int main(int argc,char const* argv[]) { 
+    complex z={3,8};
+    complex a, b, c;
+    afficher(z);
+    a=z;
+    module(a);
+    printf("|z|=%f\n",a);
+    b=conjugue(z);
+    afficher(b);
+    printf("conjugue=%f\n",b);
+    c=inverse(z);
+    afficher(c);
+    return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP20/challenger b/DEV1.1/TP20/challenger
new file mode 100755
index 0000000..4973ef8
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diff --git a/DEV1.1/TP20/challenger.c b/DEV1.1/TP20/challenger.c
new file mode 100644
index 0000000..96c5ae1
--- /dev/null
+++ b/DEV1.1/TP20/challenger.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char** argv){
+    int score,score_prec,i,chal_score;
+    char nom[3];
+    chal_score=strtol(argv[1],NULL,10);
+    FILE* file;
+    file=fopen("top10","r");
+    if (file==NULL){
+        printf("mauvaise ouverture");
+        return EXIT_FAILURE;
+    }
+    printf("|Hall of Fame|\n");
+    for (i=0;i<10;i++){
+        fread(&score,sizeof(int),1,file);
+        fread(nom,sizeof(char),3,file);
+        if (chal_score>score && chal_score<score_prec)
+            printf("%09d %s\n",chal_score,argv[2]);
+        printf("%09d %s\n",score,nom);
+        score_prec=score;
+    }
+    fclose(file);
+    return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP20/records b/DEV1.1/TP20/records
new file mode 100755
index 0000000..472da09
Binary files /dev/null and b/DEV1.1/TP20/records differ
diff --git a/DEV1.1/TP20/records.c b/DEV1.1/TP20/records.c
new file mode 100644
index 0000000..614d4c1
--- /dev/null
+++ b/DEV1.1/TP20/records.c
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+    int score,i;
+    char nom[3];
+    FILE* file;
+    file=fopen("top10","r");
+    if (file==NULL){
+        printf("mauvaise ouverture");
+        return EXIT_FAILURE;
+    }
+    printf("|Hall of Fame|\n");
+    for (i=0;i<10;i++){
+        fread(&score,4,1,file);
+        fread(&nom,3,1,file);
+        printf("%09d %s\n",score,nom);
+    }
+    fclose(file);
+    return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP20/top10 b/DEV1.1/TP20/top10
new file mode 100644
index 0000000..f6c571a
Binary files /dev/null and b/DEV1.1/TP20/top10 differ
diff --git a/DEV1.1/TP21/compte b/DEV1.1/TP21/compte
new file mode 100644
index 0000000..f16a710
Binary files /dev/null and b/DEV1.1/TP21/compte differ
diff --git a/DEV1.1/TP21/compteur b/DEV1.1/TP21/compteur
new file mode 100755
index 0000000..7a78586
Binary files /dev/null and b/DEV1.1/TP21/compteur differ
diff --git a/DEV1.1/TP21/compteur.c b/DEV1.1/TP21/compteur.c
new file mode 100644
index 0000000..16f912e
--- /dev/null
+++ b/DEV1.1/TP21/compteur.c
@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+    int compteur;
+    FILE* file;
+    file=fopen("compte","r");
+    if (file==NULL){
+        printf("mauvaise ouverture");
+        return EXIT_FAILURE;
+    }
+    fread(&compteur,sizeof(int),1,file);
+    printf("%d\n",compteur);
+    fclose(file);
+    fopen("compte","w");
+    if (file==NULL){
+        printf("mauvaise ouverture");
+        return EXIT_FAILURE;
+    }
+    compteur++;
+    fwrite(&compteur,sizeof(int),1,file);
+    fclose(file);
+    return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP21/compteur.txt b/DEV1.1/TP21/compteur.txt
new file mode 100644
index 0000000..31ea9d1
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diff --git a/DEV1.1/TP21/init b/DEV1.1/TP21/init
new file mode 100755
index 0000000..88dfc0d
Binary files /dev/null and b/DEV1.1/TP21/init differ
diff --git a/DEV1.1/TP21/init.c b/DEV1.1/TP21/init.c
new file mode 100644
index 0000000..1165714
--- /dev/null
+++ b/DEV1.1/TP21/init.c
@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+    int depart=0;
+    FILE* file;
+    file=fopen("compte","w");
+    fwrite(&depart,sizeof(int),1,file);
+    fclose(file);
+    return EXIT_SUCCESS;
+}
\ No newline at end of file