
    Write a function to determine the highest combined student performance and difficulty rating from a series of assignments, where each assignment is represented by both its student performance score and difficulty level. The function should help identify the optimal balance between assignment challenge and student success to guide future curriculum adjustments.
    

    
from collections import defaultdict

def max_aggregate(stdata):
    """
    Write a function to determine the highest combined student performance and difficulty rating from a series of assignments, where each assignment is represented by both its student performance score and difficulty level. The function should help identify the optimal balance between assignment challenge and student success to guide future curriculum adjustments.
    

    """
from collections import defaultdict

def max_aggregate(stdata):
    """
    Write a function to determine the highest combined student performance and difficulty rating from a series of assignments, where each assignment is represented by both its student performance score and difficulty level. The function should help identify the optimal balance between assignment challenge and student success to guide future curriculum adjustments.
    

    """
    temp = defaultdict(int)
    for (name, marks) in stdata:
        temp[name] += marks
    return max(temp.items(), key=lambda x: x[1])