1.1 KB | 1120 chars
"""
[29267: Случай с игрой](https://www.acmicpc.net/problem/29267)
Tier: Bronze 4
Category: arithmetic, implementation, math, simulation
"""
import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
SYS_INPUT = True
RECURSION_LIMIT = 10 ** 7
SET_RECURSION = False
BLANK = " "
if SET_RECURSION:
sys.setrecursionlimit(RECURSION_LIMIT)
inp = lambda : sys.stdin.readline().rstrip() if SYS_INPUT else input()
mii = lambda : [*map(int,inp().split())]
mfi = lambda : [*map(float,inp().split())]
ii = lambda : int(inp())
fi = lambda : float(inp())
isplit = lambda : inp().split()
p = print
def gcd(a, b): return gcd(b, a % b) if b > 0 else a
def lcm(a, b): return a * b // gcd(a, b)
def solve():
n, k = mii()
# n: 행동 수, k: 한 상자에 들어있는 탄약 수
savepoint = 0
crt = 0
for _ in range(n):
action = inp()
if action == 'save':
savepoint = crt
elif action == 'load':
crt = savepoint
elif action == 'shoot':
crt -= 1
else:
crt += k
p(crt)
if __name__ == "__main__":
tc = 1
for t in range(1, tc+1):
ret = solve()