devu and friendship testing codechef solution

Solutions on MaxInterview for devu and friendship testing codechef solution by the best coders in the world

showing results for - "devu and friendship testing codechef solution"
Gautier
05 Oct 2020
1t=int(input())
2    for i in range(t):
3        n=int(input())
4        a=list(map(int,input().split()))
5        b=set(a)
6        print(len(b))