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General
 
 
# Author Problem Lang Verdict Time Memory Sent Judged  
109646575 Practice:
Omicron02 		1438B - 22 Python 3 Accepted 77 ms 960 KB 2021-03-10 20:33:57 2021-03-10 20:33:57
→ Source 
for i in range(int(input())):
    int(input())
    l = input().split()
    print("NO" if len(set(l))==len(l) else "YES")
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Time: ? ms, memory: ? KB
Verdict: ?
Input
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