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General
 
 
# Author Problem Lang Verdict Time Memory Sent Judged  
98380819 Practice:
IceKnight1093 		1438B - 22 PyPy 3 Accepted 187 ms 3360 KB 2020-11-14 16:15:23 2020-11-14 16:15:23
→ Source 
t = int(input())
for _ in range(t):
	print("YNEOS"[int(input()) == len(set(map(int, input().split())))::2])
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Time: ? ms, memory: ? KB
Verdict: ?
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