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void AddDirected(int x, int y)
{
    node *new_node = new node;
    node *current_node = new node;
 
    new_node->data = y;
    new_node->next = NULL;
 
    current_node = List[x];
 
 
    if (current_node != NULL && current_node->data != y)
    {
 
        while (current_node->next != NULL && current_node->data != y)
        {
            current_node = current_node->next;
        }
 
        if (current_node->next == NULL)
        {
            if(current_node->data != y)
            {
                current_node->next = new_node;
            }
        }
    }
 
    new_node = NULL;
    delete new_node;
 
    current_node = NULL;
    delete current_node;
}

prog.cpp: In function 'void AddDirected(int, int)':
prog.cpp:3:5: error: 'node' was not declared in this scope
     node *new_node = new node;
     ^
prog.cpp:3:11: error: 'new_node' was not declared in this scope
     node *new_node = new node;
           ^
prog.cpp:3:26: error: 'node' does not name a type
     node *new_node = new node;
                          ^
prog.cpp:4:11: error: 'current_node' was not declared in this scope
     node *current_node = new node;
           ^
prog.cpp:4:30: error: 'node' does not name a type
     node *current_node = new node;
                              ^
prog.cpp:7:22: error: 'NULL' was not declared in this scope
     new_node->next = NULL;
                      ^
prog.cpp:9:20: error: 'List' was not declared in this scope
     current_node = List[x];
                    ^
prog.cpp:30:12: error: type '<type error>' argument given to 'delete', expected pointer
     delete new_node;
            ^
prog.cpp:33:12: error: type '<type error>' argument given to 'delete', expected pointer
     delete current_node;
            ^

Standard output is empty