# exercice 1

notes = {"maths" : 11, "SVT" : 17, "PC" : 17, "NSI" : 18 }
for k, v in notes.items():
    print(k, v)

# Exercice 2
# 1)
print(notes["NSI"])

# 2)
notes["NSI"] = notes["NSI"] + 2

# 3)
notes["Anglais"] = 15
print(notes)

# 4)
print(len(notes))

# 5)
del notes["Anglais"]
print(notes)


# Exercice 3

fruits = {"poires" : 5, "pommes": 11, 'bananes': 7, 'abricots': 12}
# 1)
for k in fruits.keys():
    print(k)

# 2)
for v in fruits.values():
    print(v)
    
# 3)
for k, v in fruits.items():
    print("Il reste", v, k)