append
We’ve seen how to modify a list by concatenating another one to it. What if we would like to modify a list by adding a single value. One option would be to add a value wrapped in a list but python has a dedicated way of doing it with
.append():l = [12, 54, 'hello']
l += [38]
print(l) # [12, 54, 'hello', 38]l = [12, 54, 'hello']
l.append(38)
print(l) # [12, 54, 'hello', 38]We can declare an empty array in the beginning and add elements one by one with
append:l = []
l.append('Hi')
l.append('this')
l += ['is', 'the', 'number']
l.append(42)
print(l) # ['Hi', 'this', 'is', 'the', 'number', 42]Challenge
Declare an empty list and add 7 integers read from the input with
append.Change each element by replacing it with its square.
Print the resulting list in the output.
Input | Output |
1
2
3
4
5
6
7 | [1, 4, 9, 16, 25, 36, 49] |
Constraints
Time limit: 2 seconds
Memory limit: 512 MB
Output limit: 1 MB