Write statements to get the maximum and minimum value in a dictionary

Write statements to check a dictionary is empty or not

Write statements to combine two dictionary adding values for common keys d1 = {'a': 100, 'b': 200, 'c':300} d2 = {'a': 300, 'b': 200, 'd':400} Sample output: {'a': 400, 'b': 400, 'd': 400, 'c': 300}

Write statements to count the values associated with key in a dictionary Sample data: = [{'id': 1, 'success': True, 'name': 'Lary'}, {'id': 2, 'success': False, 'name': 'Ruby'}, {'id': 3, 'success': True, 'name': 'Alex'}] Expected result: Count of how many dictionaries have success as True

python