1 files changed, 39 insertions, 0 deletions
diff --git a/semestre 3/structures des données/td/td7/exo2.c b/semestre 3/structures des données/td/td7/exo2.c
new file mode 100644
index 0000000..3e67451
--- /dev/null
+++ b/semestre 3/structures des données/td/td7/exo2.c
@@ -0,0 +1,39 @@
+// complexite = O(2n) = O(n)
+void degre_matrice(int** M, int n, int u, int* deg_e, int* deg_s){
+    for (int i = 0; i < n; i++) if (M[u][i]) (*deg_e)++;
+    for (int i = 0; i < n; i++) if (M[i][u]) (*deg_s)++;
+}
+
+typedef struct Cell{
+    int to;
+    struct Cell* next;
+} Cell;
+
+typedef struct List{
+    int val;
+    Cell* linked;
+} List;
+
+// complexite = O(degre max de n)
+int degre_entrant_LA(List** l, int n, int u){
+    int acc = 0;
+    Cell* c = l[u]->linked;
+    while (c){
+        acc++;
+        c = c->next;
+    }
+    return acc;
+}
+
+// complexite = O(n+(degre max de n))
+int degre_sortant_LA(List** l, int n, int u){
+    int acc = 0;
+    for (int i = 0; i < n; i++){
+        Cell* c = l[i]->linked;
+        while (c){
+            if (c->to == u) acc++;
+            c = c->next;
+        }
+    }
+    return acc;
+}