Python HackerRank|Piling Up!(from collections import deque)
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- Dashboard
- Python
- Collections
- Piling Up!
from collections import dequefor _ in range(int(input())): _, dq = int(input()), deque(map(int, input().split())) for i in reversed(sorted(dq)): if dq[0] == i: dq.popleft() elif dq[-1] == i: dq.pop() else: print("No") break else: print("Yes")
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