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34290번: Cheese Touch ↗

Solutions

Python 3
2.5 KB | 2494 chars
"""
[34290: Cheese Touch](https://www.acmicpc.net/problem/34290)

Tier: Bronze 1
Category: implementation, string
"""


import sys
from math import sqrt, pi, sin, factorial, ceil, floor
from datetime import datetime, timedelta
from collections import deque, defaultdict, Counter
from itertools import permutations, combinations, product
from bisect import bisect_left, bisect_right
from heapq import heappush, heappop, heapify
from functools import reduce, lru_cache
from operator import itemgetter, attrgetter, mul, add, sub, truediv
from typing import List, Tuple, Dict, Set, Any, Union
from fractions import Fraction

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 near_integer(x): return int(x + 0.5) if x >= 0 else int(x - 0.5)
def round_up_half(n): return floor(n + 0.5)
def rotate90(l): return [''.join(x) for x in zip(*l[::-1])]
def transpose(matrix): return list(map(list, zip(*matrix)))
def arithmetic_seq_sum(a, n, d): return (a * n + n * (n - 1) * d  // 2)

INF = 1e30

def solve():
  p, t = mii() # p: 사람의 수, <= 3000
  s = inp()
  n = len(s)
  
  inspect_times = []
  last_inspect = -1
  
  # 범위가 작아서, naive하게 풀이해도 된다.
  for i in range(n):
    if s[i] == 'W':
      last_inspect = -1
      continue
    if s[i] == 'I':
      inspect_times.append(0)
      last_inspect = i
      continue
    # forward
    
    first_inspect = -1
    for j in range(i + 1, n):
      if s[j] == 'W':
        break
      
      if s[j] == 'I':
        first_inspect = j
        break
    
    inspect_time = INF
    
    if first_inspect == -1 and last_inspect == -1:
      inspect_times.append(inspect_time)
      continue
    
    if first_inspect != -1:
      inspect_time = min(inspect_time, first_inspect - i)
    
    if last_inspect != -1:
      inspect_time = min(inspect_time, i - last_inspect)
    inspect_times.append(inspect_time)
  
  inspect_times = [i * p for i in inspect_times]
  
  if max(inspect_times) < t:
    print("ALL INFECTED")
  else:
    print("CURED")


if __name__ == "__main__":
  tc = 1
  for t in range(1, tc+1):
    ret = solve()