[백준/Python] 5176 - 대회 자리

https://www.acmicpc.net/problem/5176

k = int(input())
for _ in range(k):
    p, m = map(int, input().split())

    pos = []
    for _ in range(p):
        s = int(input())
        if s in pos:
            continue
        else:
            pos.append(s)

    print(p - len(pos))