結果
| 問題 |
No.2221 Set X
|
| コンテスト | |
| ユーザー |
lam6er
|
| 提出日時 | 2025-04-16 15:25:38 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 1,825 bytes |
| コンパイル時間 | 205 ms |
| コンパイル使用メモリ | 82,552 KB |
| 実行使用メモリ | 88,404 KB |
| 最終ジャッジ日時 | 2025-04-16 15:27:25 |
| 合計ジャッジ時間 | 4,711 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 12 WA * 1 TLE * 1 -- * 26 |
ソースコード
import sys
def main():
input = sys.stdin.read().split()
N = int(input[0])
A = list(map(int, input[1:N+1]))
max_A = A[-1]
has_zero = A[0] == 0
min_f = float('inf')
best_x = -1
# Check X up to 1e5 or max_A, whichever is smaller
upper = min(10**5, max_A)
for X in range(1, upper + 1):
prev = -1
count = 0
for a in A:
q = a // X
if q != prev:
count += 1
prev = q
current_f = (X + 1) * count
if current_f < min_f or (current_f == min_f and X < best_x):
min_f = current_f
best_x = X
# Check K=1 case
if has_zero:
X_candidate = max_A + 1
current_f = X_candidate + 1
if current_f < min_f or (current_f == min_f and X_candidate < best_x):
min_f = current_f
best_x = X_candidate
# Check X = max_A
X_candidate = max_A
if X_candidate >= 1:
prev = -1
count = 0
for a in A:
q = a // X_candidate
if q != prev:
count += 1
prev = q
current_f = (X_candidate + 1) * count
if current_f < min_f or (current_f == min_f and X_candidate < best_x):
min_f = current_f
best_x = X_candidate
# Check X = max_A - 1
X_candidate = max_A - 1
if X_candidate >= 1:
prev = -1
count = 0
for a in A:
q = a // X_candidate
if q != prev:
count += 1
prev = q
current_f = (X_candidate + 1) * count
if current_f < min_f or (current_f == min_f and X_candidate < best_x):
min_f = current_f
best_x = X_candidate
print(best_x)
print(min_f)
if __name__ == '__main__':
main()
lam6er