뿅뿅망치 팀 2023 하계 모각코 활동6

https://www.acmicpc.net/problem/7785

7785번: 회사에 있는 사람

import sys

hash = {}

num = int(sys.stdin.readline())
for _ in range(num):
    name, situation = map(str, sys.stdin.readline().split())
    if situation == 'leave':
        del hash[name]
    else:
        hash[name] = situation
re = sorted(hash.keys(), reverse=True)

for key in re:
    print(key)

 

 

 

https://www.acmicpc.net/problem/1351

1351번: 무한 수열

import sys
from collections import defaultdict

def find_num(n):
    if hash[n] != 0:
        return hash[n]
    else:
        hash[n] = find_num(n//P) + find_num(n//Q)
    return hash[n]

N,Q,P = map(int, sys.stdin.readline().split())
hash = defaultdict(int)
hash[0] = 1

print(find_num(N))

 

https://www.acmicpc.net/problem/1620

1620번: 나는야 포켓몬 마스터 이다솜

import sys

epoch, q = map(int, sys.stdin.readline().split())
re = {}
for i in range(epoch):
    name = sys.stdin.readline()
    re[i+1] = name[:-1]

rever = {v:k for k,v in re.items()}
for i in range(q):
    an = sys.stdin.readline()
    if 48 <= ord(an[0]) <= 57:
        print(re[int(an)])
    else:
        print(rever[str(an[:-1])])