# Exercice 1

notes = {'NSI' : 17, 'MATHS' : 11, 'PC' : 17}
print(notes)

# Exercice 2
# 1)
print(notes['NSI'])
# 2) 
notes['NSI'] += 2 # ou notes['NSI'] = notes['NSI'] + 2
# 3)
notes['ANGLAIS'] = 15
print(notes)
# 4)
print(len(notes))
# 5)
del notes['NSI']

# 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)