結果

問題 No.1557 Binary Variable
ユーザー ProgrammerryokiProgrammerryoki
提出日時 2021-06-25 22:54:00
言語 Python3
(3.12.2 + numpy 1.26.4 + scipy 1.12.0)
結果
AC  
実行時間 936 ms / 2,000 ms
コード長 1,978 bytes
コンパイル時間 105 ms
コンパイル使用メモリ 13,056 KB
実行使用メモリ 15,708 KB
最終ジャッジ日時 2024-06-25 08:47:23
合計ジャッジ時間 31,988 ms
ジャッジサーバーID
(参考情報)
judge4 / judge2
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 907 ms
15,708 KB
testcase_01 AC 861 ms
11,136 KB
testcase_02 AC 31 ms
11,136 KB
testcase_03 AC 32 ms
11,008 KB
testcase_04 AC 936 ms
11,136 KB
testcase_05 AC 919 ms
11,136 KB
testcase_06 AC 932 ms
11,136 KB
testcase_07 AC 921 ms
11,136 KB
testcase_08 AC 928 ms
11,136 KB
testcase_09 AC 926 ms
11,136 KB
testcase_10 AC 913 ms
11,136 KB
testcase_11 AC 928 ms
11,136 KB
testcase_12 AC 913 ms
11,136 KB
testcase_13 AC 932 ms
11,136 KB
testcase_14 AC 907 ms
11,136 KB
testcase_15 AC 933 ms
11,136 KB
testcase_16 AC 877 ms
11,136 KB
testcase_17 AC 908 ms
11,136 KB
testcase_18 AC 908 ms
11,136 KB
testcase_19 AC 893 ms
11,136 KB
testcase_20 AC 889 ms
11,136 KB
testcase_21 AC 891 ms
11,264 KB
testcase_22 AC 897 ms
11,136 KB
testcase_23 AC 876 ms
11,136 KB
testcase_24 AC 891 ms
11,136 KB
testcase_25 AC 893 ms
11,264 KB
testcase_26 AC 901 ms
11,264 KB
testcase_27 AC 900 ms
11,264 KB
testcase_28 AC 893 ms
11,136 KB
testcase_29 AC 891 ms
11,264 KB
testcase_30 AC 886 ms
11,264 KB
testcase_31 AC 893 ms
11,136 KB
testcase_32 AC 887 ms
11,136 KB
testcase_33 AC 899 ms
11,136 KB
testcase_34 AC 30 ms
11,008 KB
testcase_35 AC 31 ms
11,008 KB
testcase_36 AC 31 ms
11,008 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 #

from bisect import bisect_left

N,M = [int(i) for i in input().split()]
union = []
dic = {}
for _ in range(M):
    # print(union)
    # print(dic)
    L,R = [int(i) for i in input().split()]
    ind = bisect_left(union, L)
    if len(union) == 0:
        union.append(L)
        dic[L] = (L,R)
    if ind == 0:
        l,r = dic[union[0]]
        if R < l:
            union = [L] + union
            dic[L] = (L,R)
            continue
        n = None
        if L <= l <= R <= r:
            n = (l, R)
        elif L <= l <= r <= R:
            n = (l,r)
        union[0] = n[0]
        del dic[l]
        dic[n[0]] = n
    elif ind == len(union):
        l,r = dic[union[ind-1]]
        if r < L:
            union.append(L)
            dic[L] = (L,R)
            continue
        elif l <= L <= r <= R:
            n = (L,r)
        elif l <= L <= R <= r:
            n = (L,R)
        elif L <= l <= R <= r:
            n = (l, R)
        elif L <= l <= r <= R:
            n = (l,r)
        union[ind-1] = n[0]
        del dic[l]
        dic[n[0]] = n
    else:
        l,r = dic[union[ind-1]]
        n = None
        if r < L:
            l,r = dic[union[ind]]
            if R < l:
                union = [L] + union
                dic[L] = (L,R)
                continue
            n = None
            if l <= L <= r <= R:
                n = (L,r)
            elif l <= L <= R <= r:
                n = (L,R)
            elif L <= l <= R <= r:
                n = (l, R)
            elif L <= l <= r <= R:
                n = (l,r)
            union[ind] = n[0]
            del dic[l]
            dic[n[0]] = n
            continue
        elif l <= L <= r <= R:
            n = (L,r)
        elif l <= L <= R <= r:
            n = (L,R)
        elif L <= l <= R <= r:
            n = (l, R)
        elif L <= l <= r <= R:
            n = (l,r)
        union[ind-1] = n[0]
        del dic[l]
        dic[n[0]] = n
# print(union)
# print(dic)
print(N-len(union))
0