結果

問題 No.489 株に挑戦
ユーザー lloyzlloyz
提出日時 2023-01-23 00:00:29
言語 PyPy3
(7.3.15)
結果
WA  
実行時間 -
コード長 4,258 bytes
コンパイル時間 246 ms
コンパイル使用メモリ 82,432 KB
実行使用メモリ 101,912 KB
最終ジャッジ日時 2024-06-25 01:26:46
合計ジャッジ時間 5,905 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge3
このコードへのチャレンジ
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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 184 ms
97,024 KB
testcase_01 WA -
testcase_02 AC 40 ms
54,784 KB
testcase_03 AC 40 ms
54,400 KB
testcase_04 AC 40 ms
54,016 KB
testcase_05 AC 41 ms
54,528 KB
testcase_06 AC 42 ms
54,272 KB
testcase_07 AC 42 ms
55,040 KB
testcase_08 AC 40 ms
54,784 KB
testcase_09 AC 42 ms
54,912 KB
testcase_10 AC 43 ms
54,400 KB
testcase_11 AC 41 ms
54,912 KB
testcase_12 WA -
testcase_13 WA -
testcase_14 AC 41 ms
55,040 KB
testcase_15 AC 113 ms
78,344 KB
testcase_16 AC 160 ms
82,176 KB
testcase_17 AC 96 ms
77,696 KB
testcase_18 AC 150 ms
80,512 KB
testcase_19 WA -
testcase_20 AC 182 ms
100,352 KB
testcase_21 AC 120 ms
82,280 KB
testcase_22 AC 109 ms
78,908 KB
testcase_23 AC 153 ms
89,856 KB
testcase_24 WA -
testcase_25 AC 42 ms
56,096 KB
testcase_26 AC 160 ms
101,732 KB
testcase_27 AC 154 ms
85,528 KB
testcase_28 AC 42 ms
54,144 KB
testcase_29 AC 41 ms
54,144 KB
testcase_30 WA -
testcase_31 AC 125 ms
95,064 KB
testcase_32 AC 155 ms
90,584 KB
testcase_33 AC 188 ms
96,580 KB
testcase_34 WA -
testcase_35 AC 139 ms
85,204 KB
testcase_36 AC 107 ms
78,976 KB
testcase_37 AC 136 ms
88,052 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 # 

class SegmentTree:

    __all__ = ['setval', 'pointupdate', 'segquery', 'segsearch_right', 'pointgetval']

    def __init__(self, n=10**6, idetify_elt=-10**9, func=max):
        assert (func(idetify_elt, idetify_elt) == idetify_elt)
        self._n = n
        self._seg_length_half = 2**(n-1).bit_length()
        self._idetify_elt = idetify_elt
        self._seg = [idetify_elt]*(2*self._seg_length_half)
        self._func = func

    def setval(self, x_list):
        '''Set value : A = x_list'''
        assert (len(x_list) == self._n)
        # Set value at the bottom
        for i in range(self._n):
            self._seg[i+self._seg_length_half-1] = x_list[i]    
        # Build value
        for i in range(self._seg_length_half-2, -1, -1):
            self._seg[i] = self._func(self._seg[2*i+1], self._seg[2*i+2])
    
    def pointupdate(self, k, x):
        '''Update : A[k] = x '''
        pos = k + self._seg_length_half - 1
        # Set value at k-th
        self._seg[pos] = x
        # Build bottom-up
        while pos:
            pos = (pos-1)//2
            self._seg[pos] = self._func(self._seg[pos*2+1], self._seg[pos*2+2])
    
    def pointgetval(self, k):
        ''' Return A[k] '''
        return self._seg[k + self._seg_length_half - 1]

    def segquery(self, left, right):
        ''' Return func(A[left], ... , A[right-1]) '''
        # if not left < right
        if right <= left:
            return self._idetify_elt
        
        func_value = self._idetify_elt
        leftpos = left + self._seg_length_half - 1 # leftmost segment
        rightpos = right + self._seg_length_half - 2 # rightmost segment

        while leftpos < rightpos-1:
            if leftpos&1 == 0:
                # if leftpos is right-child
                func_value = self._func(func_value, self._seg[leftpos])
            if rightpos&1 == 1:
                # if rightpos is leftchild
                func_value = self._func(func_value, self._seg[rightpos])
                rightpos -= 1
            # move up
            leftpos = leftpos//2
            rightpos = (rightpos-1)//2
        
        func_value = self._func(func_value, self._seg[leftpos])
        if leftpos != rightpos:
            func_value = self._func(func_value, self._seg[rightpos])
        return func_value

    def segsearch_right(self, condfunc, left=0):
        ''' Return min_i satisfying condfunc( func( A[left], ... , A[i])) 
        if impossible : return n
        '''
        # if impossible (ie. condfunc( func( A[left], ... , A[-1])) is False)
        if not condfunc(self._segquery(left, self._n)):
            return self._n
        
        # possible
        func_value = self._idetify_elt
        rightpos = left + self._seg_length_half - 1
        while True: 
            # while rightpos is the left-child, move bottom-up
            while rightpos&1 == 1:
                rightpos //= 2
            # try
            up_value_trial = self._func(func_value, self._seg[rightpos])
            if not condfunc(up_value_trial):
                # move up and right
                func_value = up_value_trial
                rightpos = (rightpos-1)//2 + 1
            else:
                # move top-down
                while rightpos < self._seg_length_half-1:
                    down_value_trial = self._func(func_value, self._seg[rightpos*2 + 1])
                    if condfunc(down_value_trial):
                        # move left-child
                        rightpos = rightpos*2 + 1
                    else:
                        # move right-child
                        func_value = down_value_trial
                        rightpos = rightpos*2 + 2
                return rightpos - self._seg_length_half + 1
from collections import defaultdict
from bisect import bisect_left

n, d, k = map(int, input().split())
X = [int(input()) for _ in range(n)]
Idxs = defaultdict(list)
for i in range(n):
    Idxs[X[i]].append(i)

SegTree = SegmentTree(n)
SegTree.setval(X)
ans = 0
ANS = [0, 0]
for i in range(n - d):
    max_ = SegTree.segquery(i, i + d + 1)
    res = (max_ - X[i]) * k
    if res > ans:
        ans = res
        idx = bisect_left(Idxs[max_], i)
        ANS = [i, Idxs[max_][idx]]
print(ans)
if ans != 0:
    print(*ANS)
0