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

Lists

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2871 Discussions

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  • xoromsad
     + 0 comments

    WWait, you guys are using pattern matching?

  • RadioActiveMonk
     + 0 comments
    def execute_command(command: list[str], current_list: list[int]) -> None:
    """Execute a command on a given list"""
    
    match command[0]:
        case "insert":
            current_list.insert(int(command[1]), int(command[2]))
        case "print":
            print(current_list)
        case "remove":
            current_list.remove(int(command[1]))
        case "append":
            current_list.append(int(command[1]))
        case "sort":
            current_list.sort()
        case "pop":
            current_list.pop()
        case "reverse":
            current_list.reverse()
        case _:
            raise ValueError("Unknown command: ", command[0])

def run_commands(commands: list[str]) -> None:
    """Run a sequence of commands on a list"""
    
    current_list = []
    for line in commands:
        command = line.strip().split()
        if command:
            execute_command(command, current_list)
    
if __name__ == "__main__":
    n = int(input())
    commands = [input() for _ in range(n)]
    run_commands(commands)

  • Shankar07
     + 1 comment

    I didn't understand this, I understood list and its methods but didn't understand the question. Input N = N no.of commands, but how are the commands chosen?

  • rbshankar41
     + 0 comments

    if name == 'main': l=[] l2=[] N=int(input()) for _ in range(N): l.append(input().split()) #print(l) for i in l: match i[0]: case "append": a,b=i l2.append(int(b)) case "insert": a,b,c=i l2.insert(int(b),int(c)) case "remove": a,b=i l2.remove(int(b)) case "pop": l2.pop() case "reverse": l2.reverse() case "sort": l2.sort() case "print": print(l2)

  • harshal_21315911
     + 0 comments

    if name == 'main': N = int(input()) result=[] for i in range(N): commands= input().split()

        match commands[0]:
        case "insert":
            result.insert(int(commands[1]),int(commands[2]))
        case "print":
            print(result)
        case "remove":
            result.remove(int(commands[1]))
        case "append":
            result.append(int(commands[1]))
        case "sort":
            result.sort()
        case "pop":
            result.pop()
        case "reverse":
            result.reverse()