dictles5

# 1
def sum_values(my_dictionary):
    return sum(my_dictionary.values())


print(sum_values({"milk": 5, "eggs": 2, "flour": 3}))
print(sum_values({10: 1, 100: 2, 1000: 3}))

#2
def sum_even_keys(my_dictionary):
    even = 0
    for key, value in my_dictionary.items():
        if key % 2 == 0:
             even += value
    return even


print(sum_even_keys({1:5, 2:2, 3:3}))
print(sum_even_keys({10:1, 100:2, 1000:3}))

#3
def add_ten(my_dictionary):
    for key, value in my_dictionary.items():
        if key in my_dictionary:
            my_dictionary[key] = value + 10
    return my_dictionary


print(add_ten({1:5, 2:2, 3:3}))
print(add_ten({10:1, 100:2, 1000:3}))

#4
def values_that_are_keys(my_dictionary):
    list = []
    for key in my_dictionary:
        if key in my_dictionary.values():
            list.append(key)
    return list

print(values_that_are_keys({1:100, 2:1, 3:4, 4:10}))
print(values_that_are_keys({"a":"apple", "b":"a", "c":100}))

#5
def max_key(my_dictionary):
    for key, value in my_dictionary.items():
        if value >= max(my_dictionary.values()):
            return key

print(max_key({1:100, 2:1, 3:4, 4:10}))
print(max_key({"a":100, "b":10, "c":1000}))