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@AKpirion

ABC154 C - Distinct or Not を解いた

Posted at

abc154c_1.png
abc154c_2.png

うん。できた。

abc154c.py
N = int(input())
A = list(map(int,input().split()))

print("YES" if len(list(set(A))) == len(A) else "NO" )
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