結果
| 問題 |
No.2221 Set X
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-15 22:10:02 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,720 bytes |
| コンパイル時間 | 251 ms |
| コンパイル使用メモリ | 81,668 KB |
| 実行使用メモリ | 71,988 KB |
| 最終ジャッジ日時 | 2025-04-15 22:11:30 |
| 合計ジャッジ時間 | 4,856 ms |
|
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 13 TLE * 1 -- * 26 |
ソースコード
import math
n = int(input())
A = list(map(int, input().split()))
if n == 1:
print(1)
print(2)
exit()
diffs = []
for i in range(n-1):
diffs.append(A[i+1] - A[i])
def get_factors(x):
if x == 0:
return set()
factors = set()
for i in range(1, int(math.isqrt(x)) + 1):
if x % i == 0:
factors.add(i)
factors.add(x // i)
return factors
candidates = set()
for d in diffs:
factors = get_factors(d)
candidates.update(factors)
for num in A:
if num == 0:
continue
factors = get_factors(num)
candidates.update(factors)
candidates.add(1)
candidates.add(A[-1])
candidates.add(A[-1] + 1)
sqrt_max = int(math.isqrt(A[-1])) + 2 if A[-1] > 0 else 1
for x in range(max(1, sqrt_max - 5), sqrt_max + 5):
candidates.add(x)
min_f = float('inf')
best_x = None
for x in candidates:
if x <= 0:
continue
prev = None
k = 0
for a in A:
q = a // x
if prev is None:
prev = q
k = 1
else:
if q != prev:
k += 1
prev = q
current_f = (x + 1) * k
if current_f < min_f or (current_f == min_f and x < best_x):
min_f = current_f
best_x = x
x = A[-1] + 1
current_f = (x + 1) * 1
if current_f < min_f or (current_f == min_f and x < best_x):
min_f = current_f
best_x = x
x = A[-1]
prev = None
k = 0
for a in A:
q = a // x
if prev is None:
prev = q
k = 1
else:
if q != prev:
k += 1
prev = q
current_f = (x + 1) * k
if current_f < min_f or (current_f == min_f and x < best_x):
min_f = current_f
best_x = x
print(best_x)
print(min_f)
lam6er