結果
| 問題 |
No.2221 Set X
|
| コンテスト | |
| ユーザー |
gew1fw
|
| 提出日時 | 2025-06-12 21:16:46 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 1,350 bytes |
| コンパイル時間 | 205 ms |
| コンパイル使用メモリ | 81,928 KB |
| 実行使用メモリ | 96,540 KB |
| 最終ジャッジ日時 | 2025-06-12 21:17:32 |
| 合計ジャッジ時間 | 4,931 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
| 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
def main():
import sys
input = sys.stdin.read().split()
N = int(input[0])
A = list(map(int, input[1:N+1]))
# Generate all possible X candidates
candidates = set()
for i in range(N):
# Include A[i] as candidate
candidates.add(A[i])
# Include A[i] // k for k in 1..sqrt(A[i])
if A[i] == 0:
continue
max_k = int(A[i] ** 0.5) + 1
for k in range(1, max_k + 1):
x = A[i] // k
if x > 0:
candidates.add(x)
x = (A[i] + k) // k
if x > 0:
candidates.add(x)
# Also include differences between consecutive A's
for i in range(1, N):
diff = A[i] - A[i-1]
if diff > 0:
candidates.add(diff)
# Include X=1, even if not present
candidates.add(1)
min_f = float('inf')
best_x = -1
for x in sorted(candidates):
if x <= 0:
continue
# Compute C(x)
prev = -1
cnt = 0
for a in A:
b = a // x
if b != prev:
cnt += 1
prev = b
f = (x + 1) * cnt
if f < min_f or (f == min_f and x < best_x):
min_f = f
best_x = x
print(best_x)
print(min_f)
if __name__ == "__main__":
main()
gew1fw