n, k = [int(i) for i in input().split()]
d = [int(i) - 1 for i in input().split()]

e = [0 for i in range(n)]
for i, dd in enumerate(d):
    e[dd] = i

used_indices = set()
hoge = list()

for i in range(n):
    x = i
    y = 0

    while x not in used_indices:
        used_indices.add(x)
        x = e[x]
        y += 1
    if y > 0:
        hoge.append(y)

x = sum(a - 1 for a in hoge)

if x % 2 == k % 2 and x <= k:
    print('YES')
else:
    print('NO')