Help me in solving CREP problem

general
, ,
1

when i add count variable it works properly but when i dont add like how it is right now, it wont work

My code

# cook your dish here
for _ in range(int(input())):
    n,k=map(int,input().split())
    l = list(map(int,input().split()))
    s = 0
    dic = {}
    for i in l:
        dic[i]=dic.get(i,0)+1 
    for x,y in dic.items():
        if y==k:
            s = s+x
    if s==0:
        print(-1)
    else:
        print(s)

Problem Link: CREP Problem - CodeChef