Ajout de la semaine des cours du 7 au 13 février

1 files changed, 38 insertions, 0 deletions

diff --git a/semestre 2/informatique/tme/semaine3/18_tri_trois_valeurs.c b/semestre 2/informatique/tme/semaine3/18_tri_trois_valeurs.c
new file mode 100644
index 0000000..cfea419
--- /dev/null
+++ b/semestre 2/informatique/tme/semaine3/18_tri_trois_valeurs.c
@@ -0,0 +1,38 @@
+#include <assert.h>
+
+void echange(int *a, int *b){
+	int t = *a;
+	*a = *b;
+	*b = t;
+}
+
+void tri(int *a, int *b){
+	if (*a <= *b) return;
+	echange(a,b);
+}
+
+void tri_3(int *a, int *b, int *c){
+	tri(a, b);
+	tri(a, c);
+	tri(b, c);
+}
+
+int main(){
+	int a = 2, b = 5;
+	echange(&a, &b);
+	assert(a == 5);
+	assert(b == 2);
+	tri(&a, &b);
+	assert(a == 2);
+	assert(b == 5);
+	int c = 8;
+	a = 4; b = 2;
+	tri_3(&a, &b, &c);
+	assert(a == 2 && b == 4 && c == 8);
+	a = 2; b = 4; c = 8;
+	tri_3(&a, &b, &c);
+	assert(a == 2 && b == 4 && c == 8);
+	a = 8; b = 4; c = 2;
+	tri_3(&a, &b, &c);
+	assert(a == 2 && b == 4 && c == 8);
+}