F. PolandBall and Giftstime limit per test1.5 secondsmemory limit per test256 megabytesinputstandard inputoutputstandard outputIt's Christmas time! PolandBall and his friends will be giving themselves gifts. There are n Balls overall. Each Ball has someone for whom he should bring a present according to some permutation p, pi ≠ i for all i.Unfortunately, Balls are quite clumsy. We know earlier that exactly k of them will forget to bring their gift. A Ball number i will get his present if the following two constraints will hold:   Ball number i will bring the present he should give.  Ball x such that px = i will bring his present. What is minimum and maximum possible number of kids who will not get their present if exactly k Balls will forget theirs?InputThe first line of input contains two integers n and k (2 ≤ n ≤ 106, 0 ≤ k ≤ n), representing the number of Balls and the number of Balls who will forget to bring their presents. The second line contains the permutation p of integers from 1 to n, where pi is the index of Ball who should get a gift from the i-th Ball. For all i, pi ≠ i holds.OutputYou should output two values — minimum and maximum possible number of Balls who will not get their presents, in that order.ExamplesInput5 23 4 1 5 2Output2 4Input10 12 3 4 5 6 7 8 9 10 1Output2 2NoteIn the first sample, if the third and the first balls will forget to bring their presents, they will be th only balls not getting a present. Thus the minimum answer is 2. However, if the first ans the second balls will forget to bring their presents, then only the fifth ball will get a present. So, the maximum answer is 4.
Input5 23 4 1 5 2
Output2 4
['bitmasks', 'dp', 'greedy', '*2600']