逆向模拟操作
构造队列
http://www.nowcoder.com/questionTerminal/657d09e2b3704574814089ba8566d98d
由原来的队列经过一系列操作后可以得到[1,2,3,4.....n]这样的队列，那么把所有的操作逆向回去，就能由[1,2,3,4,.....n]得到原来的队列。
from collections import deque
T = int(input())
while(T):
n = int(input())
queue = deque()
res = deque([i for i in range(1,n+1)])
#res = [1,2,3,4,5,6,7...n]
while(res):
target = res.pop()
queue.appendleft(target)
target = queue.pop()
queue.appendleft(target)
q = [str(i) for i in queue]
print(' '.join(q))
T = T-1
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