Update app.py

app.py

@@ -70,38 +70,20 @@ def algorithms_cycle_detection():
         st.write("### Create Your Own Graph")
 
         # Input for creating custom graph
-        edges_input = st.text_area("Enter directed edges (e.g., (1, 2), (2, 3), (3, 4), (4, 2)):").strip()
+        edges_input = st.text_area("Enter directed edges (e.g., (1, 2), (2, 3), (3, 4), (4, 2)):") 
 
         if st.button("Generate Graph"):
             if edges_input:
                 try:
-                    edges = []
-                    # Ensure correct formatting of the input string
-                    edge_strings = edges_input.split("),")
-                    for edge_str in edge_strings:
-                        edge_str = edge_str.strip()
-                        if edge_str:
-                            # Handle the case where the edge might be missing a closing parenthesis
-                            if edge_str[-1] != ")":
-                                edge_str += ")"
-                            # Remove the opening and closing parentheses
-                            edge_tuple = edge_str.strip("()").split(",")
-                            if len(edge_tuple) == 2:
-                                try:
-                                    # Safely convert to integers and add the edge
-                                    edge_tuple = tuple(map(int, edge_tuple))
-                                    edges.append(edge_tuple)
-                                except ValueError:
-                                    st.error(f"Invalid edge format: {edge_str}")
-                                    return
-
-                    if edges:
-                        # Create the graph
+                    # Parse the input edges
+                    edges = [tuple(map(int, edge.strip()[1:-1].split(","))) for edge in edges_input.split(",")]
+                    if not edges:
+                        st.error("No valid edges provided.")
+                    else:
                         G = nx.DiGraph(edges)
                         st.write("Custom Graph:", G.edges())
                         plot_cycle_detection(G)
-                    else:
-                        st.error("No valid edges provided.")
+
                 except Exception as e:
                     st.error(f"Error creating the graph: {e}")
             else: