Lists in Python - Hacker Rank Solution

Hello coders, today we will be solving Lists in Python Hacker Rank Solution.

Problem

Consider a list (list = []). You can perform the following commands:

1. insert i e: Insert integer e at position i.
2. print: Print the list.
3. remove e: Delete the first occurrence of integer e.
4. append e: Insert integer e at the end of the list.
5. sort: Sort the list.
6. pop: Pop the last element from the list.
7. reverse: Reverse the list.

Initialize your list and read in the value of n followed by n lines of commands where each command will be of the 7 types listed above. Iterate through each command in order and perform the corresponding operation on your list.

Example

N = 4

append 1

append 2

insert 3 1

print

• append 1: Append 1 to the list, arr = [1].
• append 2: Append 2 to the list, arr = [1, 2].
• insert 3 1: Insert 3 at index 1, arr = [1, 3, 2].
• print: Print the array.
• Output:

[1, 3, 2]

Input Format

The first line contains an integer, n, denoting the number of commands.

Each line i of the n subsequent lines contains one of the commands described above.

Constraints

• The elements added to the list must be integers.

Output Format

For each command of type print, print the list on a new line.

Sample Input 0

12
insert 0 5
insert 1 10
insert 0 6
print
remove 6
append 9
append 1
sort
print
pop
reverse
print

Sample Output 0

[6, 5, 10]
[1, 5, 9, 10]
[9, 5, 1]

Solution - Lists in Python - Hacker Rank Solution 

if __name__ == '__main__':
    N = int(input())
    L=[];
    for i in range(0,N):
        cmd=input().split();
        if cmd[0] == "insert":
            L.insert(int(cmd[1]),int(cmd[2]))
        elif cmd[0] == "append":
            L.append(int(cmd[1]))
        elif cmd[0] == "pop":
            L.pop();
        elif cmd[0] == "print":
            print(L)
        elif cmd[0] == "remove":
            L.remove(int(cmd[1]))
        elif cmd[0] == "sort":
            L.sort();
        else:
            L.reverse();

Disclaimer: The above Problem (Lists in Python) is generated by Hacker Rank but the Solution is provided by Sloth Coders.

Happy Coding !!

A Sloth Who love to Code

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