create regroupe of groups function

src/C/equation.c

@@ -105,6 +105,20 @@ void create_group_random(group_t *group, point_t* points, int n_points, int n_gr
     free(tmp);
 }
 
+point_t* group(group_t *group, int a, int b) {
+    int nb_points = (int)(group->n_points/group->n_groups) * 2; // 30 / 3 * 2 = 20
+
+    point_t* result = malloc(sizeof(point_t) * nb_points);
+    
+    for (int i = 0; i < nb_points/2; i++)
+    {
+        result[i] = group->points[a][i];
+        result[nb_points/2+i] = group->points[b][i];
+    }
+
+    return result;   
+}
+
 void print_group(group_t *group){
     for (int i = 0; i < group->n_groups; i++)
     {

src/C/equation.h

@@ -49,6 +49,7 @@ double fd(vector_t x); // test
 // Gestion des groupes
 void create_group(group_t *group, point_t* points, int n_points, int n_groups);
 void create_group_random(group_t *group, point_t* points, int n_points, int n_groups);
+point_t* group(group_t *group, int a, int b);
 
 void print_group(group_t *group);
 void destroy_group(group_t *group);

src/C/main.c

@@ -59,6 +59,14 @@ int main(int argc, char* argv[]) {
     create_group_random(&groups, points, nb_points, 3);
     print_group(&groups);
 
+    // Exemple of grouping two groups
+    point_t* yes = group(&groups, 0, 1);
+
+    for (int i = 0; i < 20; i++)
+    {
+        printf("%f, %f\n", yes[i].x, yes[i].y);
+    }
+    
     vector_t resAB = descente_radian(points, nb_points);
     point_t* AB = malloc(sizeof(point_t));
     *AB = (point_t){resAB.x, resAB.y};