B"There are n table bowling players, the rating of the i -th player equals r_i . Compose a maximum number of teams in a such way that: For example, if n=12 , r=[1, 1, 2, 2, 2, 2, 2, 3, 3, 4, 6, 6] , a=1 , b=2 , k=2 , you can compose two teams with ratings [1, 2, 2] and one team with ratings [3, 6, 6] . So, the maximum number of teams is 3 . Find the maximum number of teams by given n, r_1 ... r_n, a, b and k to compose in respect to the given requirements. The first line of the input contains four integers n , a , b and k ( 1 <= n,a,b <= 3 cdot10^5 , 2 <= k <= 1000 ). The second line contains the sequence of player's ratings -- integers r_1, r_2, ... , r_n ( 1 <= r_i <= 10^6 ). Print only one integer -- the maximum number of teams that can be composed from n given players. "...