from sys import stdin, stdout
input = lambda: stdin.readline().rstrip()
write = stdout.write

def main():
    N, K = map(int, input().split())
    D = list(map(int, input().split()))

    diff = 0
    d = [0] + D
    i = 1
    while 1:
        if d[i] != i:
            j = d[i]
            d[i], d[j] = d[j], d[i]
            diff += 1
        else:
            i += 1
            if i > N:
                break
        if diff > K:
            write('NO\n')
            return

    ope = -(-diff // 2)
    if K >= ope and not (K - ope) % 2:
        write('YES\n')
    else:
        write('NO\n')

main()