20 lines
305 B
Python
20 lines
305 B
Python
n,m=map(int,input().split())
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inarr=list(map(int,input().split()))
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arr=[]
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inarr.sort()
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def bt(s):
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if len(arr)==m:
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print(*arr)
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return
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for i in range(s,n):
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v=inarr[i]
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if v in arr:
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continue
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arr.append(v)
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bt(i)
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arr.pop()
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bt(0) |