We use cookies to ensure you have the best browsing experience on our website. Please read our cookie policy for more information about how we use cookies.
  1. Prepare
  2. Python
  3. Sets
  4. Set .discard(), .remove() & .pop()
  5. Discussions

Set .discard(), .remove() & .pop()

Sort by

recency

|

1091 Discussions

|

  • erzwo
     + 0 comments
    n = int(input())
s = set(map(int, input().split()))
N = int(input())

for _ in range(N):
    inp = list(input().split())
    if len(inp) == 2:
        getattr(s, inp[0])(int(inp[1]))
    else:
        getattr(s, inp[0])()

print(sum(s))

  • nice00guy69
     + 0 comments

    I also wanted to use lamda but realized there was a problem I saw before which also required dynamic function call like this. Studied getattr()() workings and here is a much much simpler way

    N = int(input())

for _ in range(N):
    COMMAND = input().split()
    if len(COMMAND) == 1:
        getattr(s, COMMAND[0])()
    else:
        getattr(s, COMMAND[0])(int(COMMAND[1]))
print(sum(s))

  • ravikiranby02
     + 0 comments

    For Python3 Platform

    n = int(input()) s = set(map(int, input().split())) N = int(input())

    for _ in range(N): cmd = input().split()

    if(cmd[0] == "pop"):
    try:
        s.pop()
    except KeyError:
        pass
elif(cmd[0] == "remove"):
    try:
        s.remove(int(cmd[1]))
    except KeyError:
        pass
elif(cmd[0] == "discard"):
    s.discard(int(cmd[1]))

    print(sum(s))

  • bairartony
     + 0 comments

    change your language to python3 from pypy3 for correct result

  • SVVBathini_w
     + 0 comments

    For Python3 Platform

    n = int(input())
s = set(map(int, input().split()))
N = int(input())

for _ in range(N):
    cmd = input().split()
    
    if(cmd[0] == "pop"):
        try:
            s.pop()
        except KeyError:
            pass
    elif(cmd[0] == "remove"):
        try:
            s.remove(int(cmd[1]))
        except KeyError:
            pass
    elif(cmd[0] == "discard"):
        s.discard(int(cmd[1]))

print(sum(s))