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# Author Problem Lang Verdict Time Memory Sent Judged  
98687080 Practice:
DebRC 		1438B - 22 PyPy 3 Accepted 187 ms 1600 KB 2020-11-17 17:31:15 2020-11-17 17:31:15
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for _ in range(int(input())):
    print('NO' if int(input())==len(set(input().split())) else 'YES')
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Time: ? ms, memory: ? KB
Verdict: ?
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