Lists in Python- HackerRank Solution

Lists in Python- HackerRank Solution

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 to the list,arr= [1].
• : Append 2 to the list,arr= [1,2].
• : 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]

Code:

#Lists in Python- HackerRank Solution

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

#Lists in Python- HackerRank Solution

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