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# Author Problem Lang Verdict Time Memory Sent Judged  
102299169 Practice:
Ankit_Kochar 		1438B - 22 Python 3 Accepted 109 ms 752 KB 2020-12-25 13:56:27 2020-12-25 13:56:27
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for _ in range(int(input())):print(["NO","YES"][int(input())!=len(set(input().split()))])
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Time: ? ms, memory: ? KB
Verdict: ?
Input
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Participant's output
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Jury's answer
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