Design Task Manager

Description

A task management system tracks user tasks, each with a priority. The system supports adding, modifying, executing, and removing tasks.

Implement the TaskManager class:

- TaskManager(vector<vector<int>>& tasks) initializes the manager with a list of [userId, taskId, priority] triples.

- void add(int userId, int taskId, int priority) adds a new task; taskId is guaranteed not to exist yet.

- void edit(int taskId, int newPriority) updates the priority of an existing task.

- void rmv(int taskId) removes an existing task from the system.

- int execTop() executes the highest-priority task; ties are broken by the largest taskId. Removes the task and returns its userId. Returns -1 if no tasks remain.

A user may hold multiple tasks.

Code

class TaskManager:

    def __init__(self, tasks: List[List[int]]):
        

    def add(self, userId: int, taskId: int, priority: int) -> None:
        

    def edit(self, taskId: int, newPriority: int) -> None:
        

    def rmv(self, taskId: int) -> None:
        

    def execTop(self) -> int:
        


# Your TaskManager object will be instantiated and called as such:
# obj = TaskManager(tasks)
# obj.add(userId,taskId,priority)
# obj.edit(taskId,newPriority)
# obj.rmv(taskId)
# param_4 = obj.execTop()