結果

問題 No.1606 Stuffed Animals Keeper
ユーザー LyricalMaestro
提出日時 2024-01-14 03:27:23
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 354 ms / 3,000 ms
コード長 1,615 bytes
コンパイル時間 140 ms
コンパイル使用メモリ 82,352 KB
実行使用メモリ 77,880 KB
最終ジャッジ日時 2024-09-28 01:56:11
合計ジャッジ時間 8,166 ms
ジャッジサーバーID
(参考情報)
judge4 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 48
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 #
プレゼンテーションモードにする

## https://yukicoder.me/problems/no/1606
def main():
N = int(input())
A = list(map(int, input().split()))
intervals = []
prev = 2
for a in A:
if a != 2:
if len(intervals) == 0:
array = [0, 0]
array[a] = 1
intervals.append(array)
else:
if prev != 2:
intervals[-1][a] += 1
else:
array = [0, 0]
array[a] = 1
intervals.append(array)
prev = a
value = 0
a1_value = 0
for a0, a1 in intervals:
value += a0 + a1
a1_value += a1
if a1_value == 0 or ( value - a1_value) == 0:
print(0)
return
dp = [float("inf") for _ in range(value + 1)]
dp[0] = 0
for a0, a1 in intervals:
new_dp = [float("inf") for _ in range(value + 1)]
total = a0 + a1
for i in range(value + 1):
#
new_dp[i] = min(new_dp[i], dp[i])
#
if i + total <= value:
new_dp[i + total] = min(new_dp[i + total], dp[i] + a0)
dp = new_dp
answer = float("inf")
for total in range(value + 1):
if dp[total] == float("inf"):
continue
a0 = dp[total]
a1 = total - a0
#
a = a1_value - a1
if a0 == a:
answer = min(answer, a0)
if answer == float("inf"):
print(-1)
else:
print(answer)
if __name__ == "__main__":
main()
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