結果

問題 No.106 素数が嫌い！2
ユーザー McGregorshMcGregorsh
提出日時 2022-06-15 17:14:14
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 285 ms / 5,000 ms
コード長 3,564 bytes
コンパイル時間 202 ms
コンパイル使用メモリ 82,240 KB
実行使用メモリ 130,644 KB
最終ジャッジ日時 2024-04-15 02:09:03
合計ジャッジ時間 3,666 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
このコードへのチャレンジ
（要ログイン）

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 194 ms
108,936 KB
testcase_01 AC 127 ms
89,128 KB
testcase_02 AC 127 ms
88,984 KB
testcase_03 AC 124 ms
88,992 KB
testcase_04 AC 180 ms
109,092 KB
testcase_05 AC 243 ms
130,644 KB
testcase_06 AC 237 ms
130,444 KB
testcase_07 AC 246 ms
130,604 KB
testcase_08 AC 134 ms
92,004 KB
testcase_09 AC 131 ms
91,868 KB
testcase_10 AC 285 ms
130,468 KB
testcase_11 AC 174 ms
106,772 KB
testcase_12 AC 241 ms
127,992 KB
testcase_13 AC 127 ms
89,000 KB
testcase_14 AC 124 ms
89,052 KB
testcase_15 AC 126 ms
89,372 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

###N以下の素数列挙###

import math 
def sieve_of_eratosthenes(n):
	  prime = [True for i in range(n+1)]
	  prime[0] = False
	  prime[1] = False
	  
	  sqrt_n = math.ceil(math.sqrt(n))
	  for i in range(2, sqrt_n):
	  	  if prime[i]:
	  	  	  for j in range(2*i, n+1, i):
	  	  	  	  prime[j] = False
	  return prime


###N以上K以下の素数列挙###

import math

def segment_sieve(a, b):
	  sqrt_b = math.ceil(math.sqrt(b))
	  prime_small = [True for i in range(sqrt_b)]
	  prime = [True for i in range(b-a+1)]
	  
	  for i in range(2, sqrt_b):
	  	  if prime_small[i]:
	  	  	  for j in range(2*i, sqrt_b, i):
	  	  	  	  prime_small[j] = False
	  	  	  for j in range((a+i-1)//i*i, b+1, i):
	  	  	  	  #print('j: ', j)
	  	  	  	  prime[j-a] = False
	  return prime


###n進数から10進数変換###

def base_10(num_n,n):
	  num_10 = 0
	  for s in str(num_n):
	  	  num_10 *= n
	  	  num_10 += int(s)
	  return num_10


###10進数からn進数変換###

def base_n(num_10,n):
	  str_n = ''
	  while num_10:
	  	  if num_10%n>=10:
	  	  	  return -1
	  	  str_n += str(num_10%n)
	  	  num_10 //= n
	  return int(str_n[::-1])


###複数の数の最大公約数、最小公倍数###

from functools import reduce

# 最大公約数
def gcd_list(num_list: list) -> int:
	  return reduce(gcd, num_list)

# 最小公倍数
def lcm_base(x: int, y: int) -> int:
	  return (x * y) // gcd(x, y)
def lcm_list(num_list: list):
	  return reduce(lcm_base, num_list, 1)


###約数列挙###

def make_divisors(n):
	  lower_divisors, upper_divisors = [], []
	  i = 1
	  while i * i <= n:
	  	  if n % i == 0:
	  	  	  lower_divisors.append(i)
	  	  	  if i != n // i:
	  	  	  	  upper_divisors.append(n//i)
	  	  i += 1
	  return lower_divisors + upper_divisors[::-1]


###順列###

def nPr(n, r):
	  npr = 1
	  for i in range(n, n-r, -1):
	  	  npr *= i
	  return npr


###組合せ###

def nCr(n, r):
	  factr = 1
	  r = min(r, n - r)
	  for i in range(r, 1, -1):
	  	  factr *= i
	  return nPr(n, r)/factr



import sys, re
from math import ceil, floor, sqrt, pi, factorial, gcd
from copy import deepcopy
from collections import Counter, deque, defaultdict
from heapq import heapify, heappop, heappush
from itertools import accumulate, product, combinations, combinations_with_replacement, permutations
from bisect import bisect, bisect_left, bisect_right
from functools import reduce
from decimal import Decimal, getcontext
def i_input(): return int(input())
def i_map(): return map(int, input().split())
def i_list(): return list(i_map())
def i_row(N): return [i_input() for _ in range(N)]
def i_row_list(N): return [i_list() for _ in range(N)]
def s_input(): return input()
def s_map(): return input().split()
def s_list(): return list(s_map())
def s_row(N): return [s_input for _ in range(N)]
def s_row_str(N): return [s_list() for _ in range(N)]
def s_row_list(N): return [list(s_input()) for _ in range(N)]
def lcm(a, b): return a * b // gcd(a, b)
def get_distance(x1, y1, x2, y2):
	  d = sqrt((x2 - x1) ** 2 + (y2 - y1) ** 2)
	  return d
sys.setrecursionlimit(10 ** 7)
INF = float('inf')
MOD = 10 ** 9 + 7
MOD2 = 998244353


def main():
   
   n, k = i_map()
   juge = sieve_of_eratosthenes(n+100)
   nums = []
   for i in range(n+1):
   	  if juge[i]:
   	  	  nums.append(i)
   
   count = [0] * (n+1)
   for i in range(len(nums)):
   	  for j in range(nums[i], n+1, nums[i]):
   	  	  count[j] += 1
   
   
   ans = 0
   for i in range(n+1):
   	  if count[i] >= k:
   	  	  ans += 1
   print(ans)
   
   
if __name__ == '__main__':
    main()
0