hi there I have this struct info\n```\n\nstruct Graph\n{\n  // An array of pointers to Node to represent an adjacency list\n  size_t nodes;\n  struct Node *head[];\n};\n\n// Data structure to store adjacency list nodes of the graph\nstruct Node\n{\n  int dest, weight;\n  struct Node *next;\n};\n```\nhow can I remove the head with all related nodes for him\nfor example, I want to delete the `head[1]`\nsee the image for better understanding>> \n![image](https://assets.leetcode.com/users/images/195f4b57-b356-4e02-a933-ddaf38651a09_1640810020.3568933.png)\n\n\nafter deleting>>\n![image](https://assets.leetcode.com/users/images/0a25b6e4-e80d-4567-9ccd-123d20dad2a2_1640810037.6562037.png)\n\ncan any body help me create the **delete** ,**search** and **insert** functions?\n\n

hi there I have this struct info\n\n\nstruct Graph\n{\n  // An array of pointers to Node to represent an adjacency list\n  size_t nodes;\n  struct Node *head[];