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A list called numbers is given. Return the items in the odd index.
Example 1:
Input: list1=[1, 2, 3, 4, 5]
Output: [1,3,5]Example 2:
Input: list1=[0, 1, 2, 3, 4, 5]
Output: [0, 2, 4]Constraints:
- 2 <= length(list1) <= 10^5
A list of several elements is given. Reverse this list.
Example 1:
Input: list1=[1, 2, 3, 4, 5]
Output: [5, 4, 3, 2, 1]Example 2:
Input: list1=[0, 1, 2, 3, 4, 5]
Output: [5, 4, 3, 2, 1, 0]Constraints:
- 2 <= length(list1) <= 10^5
A list of several elements is given. Return this list by adding the reverse.
Example 1:
Input: list1=['a', 'b', 'c', 'd']
Output: ['a', 'b', 'c', 'd', 'd', 'c', 'b', 'a']Example 2:
Input: list1=[0, 1, 2]
Output: [0, 1, 2, 2, 1, 0]Constraints:
- 2 <= length(list1) <= 10^5
A list of several elements is given. Return the three elements from the beginning.
Example 1:
Input: list1=['a', 'b', 'c', 'd']
Output: ['a', 'b', 'c']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4]
Output: ['a', 1, 'b']Constraints:
- 4 <= length(list1) <= 10^5
A list of several elements is given. Return the value from n index to k index.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f'] n = 2 k = 5
Output: ['c', 'd', 'e', 'f']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4] n = 1 k = 3
Output: [1, 'b']Constraints:
- 4 <= length(list1) <= 10^5
- 1 <= n <= k <= length(list1)
A list of several elements is given. Return the three elements from the beginning.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f']
Output: ['a', 'd']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4]
Output: ['a', 2, 'd']Constraints:
- 4 <= length(list1) <= 10^5
A list of several elements is given. Return all items from the beginning in n steps.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f'] n = -1
Output: ['f', 'e', 'd', 'c', 'b', 'a']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4] n = 2
Output: ['a', 'b', 'c', 'd']Constraints:
- 4 <= length(list1) <= 10^5
- -1 <= n < length(list1)
A list of several elements is given. Return all items from end n steps.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f'] n = -1
Output: ['a', 'b', 'c', 'd', 'e', 'f']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4] n = 2
Output: [4, 3, 2, 1]Constraints:
- 4 <= length(list1) <= 10^5
- -1 <= n <= length(list1)
A list of several elements is given. Return all items except n elements from the beginning.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f'] n = 3
Output: ['d', 'e', 'f']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4] n = 2
Output: ['b', 2, 'c', 3, 'd', 4]Constraints:
- 4 <= length(list1) <= 10^5
- -1 <= n <= length(list1)
A list of several elements is given. Return all elements in reverse order except n elements from the beginning.
Example 1:
Input: list1=['a', 'b', 'c', 'd', 'e', 'f'] n = 3
Output: ['f', 'e', 'd']Example 2:
Input: list1=['a', 1, 'b', 2, 'c', 3, 'd', 4] n = 2
Output: [4, 'd', 3, 'c', 2, 'b']Constraints:
- 4 <= length(list1) <= 10^5
- -1 <= n <= length(list1)
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