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  1. Prepare
  2. Python
  3. Basic Data Types
  4. Lists
  5. Discussions

Lists

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2802 Discussions

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  • chaminviktor
     + 0 comments

    if name == 'main':

    N = int(input())

def selector(N):
    lst = []
    commands = {
        'insert': lambda cmd: lst.insert(int(cmd[1]), int(cmd[2])),
        'print': lambda cmd: print(lst),
        'remove': lambda cmd: lst.remove(int(cmd[1])),
        'append': lambda cmd: lst.append(int(cmd[1])),
        'sort': lambda cmd: lst.sort(),
        'pop': lambda cmd: lst.pop(),
        'reverse': lambda cmd: lst.reverse()
    }

    for _ in range(N):
        cmd = input().lower().split(' ')
        commands[cmd[0]](cmd)

selector(N)

  • kjaswanth4
     + 0 comments
    if __name__ == '__main__':
    N = int(input())
    lst=[]
    commands=[input().split(" ") for i in range(N)]

    def insert(args):
        lst.insert(args[0],args[1])

    def remove(args):
        lst.remove(args[0])

    def append(args):
        lst.append(args[0])

    def sort():
        lst.sort()

    def pop():
        lst.pop()

    def reverse():
        lst.reverse()

    def display():
        print(lst)

    operations={
        'insert': insert,
        'print':display,
        'remove':remove,
        'append':append,
        'sort':sort,
        'pop':pop,
        'reverse':reverse,

    }

    for command in commands:
        action=command[0]
        args =[int(i) for i in command[1:]]
        if action in operations.keys():
            if len(args)==0:
                operations[action]()
            else:
                operations[action](args)

  • bhaskarpathak609
     + 0 comments

    here taking the user_input - insert 1 5 and coverting this to ['insert', '1', '5'] using split() and hence using indexing

    if name == 'main': N = int(input()) my_list = []

    for iterations in range(N):
    user_input = input().split()

    if user_input[0] == 'insert':
        my_list.insert(int(user_input[1]), int(user_input[2]))
    elif user_input[0] == 'print':
        print(my_list)
    elif user_input[0] == 'remove':
        my_list.remove(int(user_input[1]))
    elif user_input[0] == 'append':
        my_list.append(int(user_input[1]))
    elif user_input[0] == 'sort':
        my_list.sort()
    elif user_input[0] == 'pop':
        my_list.pop()
    elif user_input[0] == 'reverse':
        my_list.reverse()

  • siddharthkp
     + 1 comment
    if __name__ == '__main__':
    N = int(input())
    my_list = []
    for _ in range(N):
        command, *values = input().split()
        params = list(map(int, values))
        if command == "print":
            print(my_list)
        else:
            getattr(my_list, command)(*params)

  • slyninjafox
     + 0 comments
    if __name__ == '__main__':
    l = []
    for _ in range(int(input())):
        cmd,args = (lambda a: [a[0],a[1:]])(input().split())
        if cmd=="print":
            print(l)
        else:
            exec(f"l.{cmd}({", ".join(args)})")