n,k=map(int,input().split())
d=list(map(lambda x: x-1, map(int,input().split())))
dif=False
cnt=0
for i in range(n):
    j = d[i]
    if d[i] == i: continue
    if d[j] == i:
        cnt+=1
        d[i] = i
        d[j] = j
    else:
        cnt+=1
        dif = True
if dif and k >= cnt:
    print("YES")
else:
    print("YES" if cnt == k or (k>cnt and (k-cnt)&1==0) else "NO")