Moon landing

from collections import deque

def find_longest_strip(n, x, a):
    max_deque = deque()
    min_deque = deque()
    
    left = 0
    max_len = 0
    best_start = 0
    
    for right in range(n):
        while max_deque and a[max_deque[-1]] <= a[right]:
            max_deque.pop()
        max_deque.append(right)
        
        while min_deque and a[min_deque[-1]] >= a[right]:
            min_deque.pop()
        min_deque.append(right)
        
        while a[max_deque[0]] - a[min_deque[0]] > x:
            left += 1
            if max_deque[0] < left:
                max_deque.popleft()
            if min_deque[0] < left:
                min_deque.popleft()
        
        current_len = right - left + 1
        if current_len > max_len:
            max_len = current_len
            best_start = left
    
    print(best_start + 1, max_len)

n, x = map(int, input().split())
a = list(map(int, input().split()))
find_longest_strip(n, x, a)

Test 1

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Test 64

Verdict: ACCEPTED