結果

問題 No.2375 watasou and hibit's baseball
ユーザー LyricalMaestroLyricalMaestro
提出日時 2024-12-13 03:24:50
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 885 ms / 2,000 ms
コード長 2,203 bytes
コンパイル時間 2,536 ms
コンパイル使用メモリ 81,792 KB
実行使用メモリ 124,336 KB
最終ジャッジ日時 2024-12-13 03:25:08
合計ジャッジ時間 15,172 ms
ジャッジサーバーID
(参考情報)
judge3 / judge5
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 41 ms
51,840 KB
testcase_01 AC 40 ms
52,096 KB
testcase_02 AC 40 ms
51,968 KB
testcase_03 AC 440 ms
98,832 KB
testcase_04 AC 59 ms
63,872 KB
testcase_05 AC 53 ms
62,976 KB
testcase_06 AC 885 ms
123,432 KB
testcase_07 AC 40 ms
51,840 KB
testcase_08 AC 112 ms
83,256 KB
testcase_09 AC 39 ms
52,224 KB
testcase_10 AC 40 ms
52,608 KB
testcase_11 AC 92 ms
77,568 KB
testcase_12 AC 480 ms
122,976 KB
testcase_13 AC 256 ms
96,740 KB
testcase_14 AC 38 ms
52,224 KB
testcase_15 AC 378 ms
84,112 KB
testcase_16 AC 190 ms
79,436 KB
testcase_17 AC 334 ms
120,344 KB
testcase_18 AC 40 ms
52,224 KB
testcase_19 AC 38 ms
52,096 KB
testcase_20 AC 81 ms
77,868 KB
testcase_21 AC 375 ms
120,880 KB
testcase_22 AC 39 ms
52,352 KB
testcase_23 AC 290 ms
119,296 KB
testcase_24 AC 282 ms
119,296 KB
testcase_25 AC 39 ms
52,480 KB
testcase_26 AC 531 ms
122,024 KB
testcase_27 AC 635 ms
122,628 KB
testcase_28 AC 607 ms
122,596 KB
testcase_29 AC 594 ms
121,788 KB
testcase_30 AC 787 ms
124,336 KB
testcase_31 AC 706 ms
123,256 KB
testcase_32 AC 784 ms
123,788 KB
testcase_33 AC 658 ms
123,624 KB
testcase_34 AC 560 ms
122,652 KB
testcase_35 AC 631 ms
122,344 KB
testcase_36 AC 563 ms
122,076 KB
testcase_37 AC 623 ms
122,488 KB
testcase_38 AC 303 ms
119,296 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 #

# https://yukicoder.me/problems/no/2375

def dist(from_i, to_j, xyk):
    xi, yi, _ = xyk[from_i]
    xj, yj, _ = xyk[to_j]
    return abs(xi - xj) + abs(yi - yj)

def diff_speed(from_i, to_j, xyk):
    _, _, ki = xyk[from_i]
    _, _, kj = xyk[to_j]
    return abs(ki - kj)

def main():
    N, A, B = map(int, input().split())
    xyk = []
    for _ in range(N):
        x, y, k = map(int, input().split())
        xyk.append((x, y, k))
    
    bits = [[[False for _ in range(N)] for _ in range(N)] for _ in range(2 ** N)]

    # 2投目まで
    for i in range(N):
        for j in range(N):
            if i != j:
                if dist(i, j, xyk) >= A or diff_speed(i, j, xyk) >= B:
                    bits[(1 << i) | (1 << j)][i][j] = True

    bit_map = {}
    for bit in range(2 ** N):
        bit_count = 0
        for i in range(N):
            if bit & (1 << i) > 0:
                bit_count += 1
        
        if bit_count >= 2:
            if bit_count not in bit_map:
                bit_map[bit_count] = []
            bit_map[bit_count].append(bit)

    for bit_count in range(2, N):
        for bit in bit_map[bit_count]:
            for from_i in range(N):
                for from_j in range(N):
                    if from_i == from_j:
                        continue

                    mask = (1 <<  from_i) & (1 << from_j)
                    if bit & mask == mask and bits[bit][from_i][from_j]:
                        for to_k in range(N):
                            if bit & (1 << to_k) == 0:
                                if diff_speed(from_j, to_k, xyk) >= B or (dist(from_i, to_k, xyk) + dist(from_j, to_k, xyk) >= A):
                                    new_bit = bit | (1 << to_k)
                                    bits[new_bit][from_j][to_k] = True
    
    answer = 1
    for bit_count in range(2, N + 1):
        for bit in bit_map[bit_count]:
            is_ok = False
            for i in range(N):
                for j in range(N):
                    if bits[bit][i][j]:
                        is_ok = True
            
            if is_ok:
                answer = max(answer, bit_count)
    print(answer)




if __name__ == "__main__":
    main()
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