Three Hundred - Twenty-Seven Commit: Implement insert_edge() function

Author: AAdewunmi

Section_12(Graphs)/(1)_graph.py

@@ -49,4 +49,7 @@
 class Graph:
     def __init__(self, vertices):
         self._vertices = vertices
-        self._adjacent_matrix = np.array((vertices, vertices))
+        self._adjacent_matrix = np.array((vertices, vertices))
+
+    def insert_edge(self, u, v, weight_edge = 1):
+        self._adjacent_matrix[u][v] = weight_edge