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| 1 | +package algo_ex; |
| 2 | + |
| 3 | +import java.io.BufferedReader; |
| 4 | +import java.io.IOException; |
| 5 | +import java.io.InputStreamReader; |
| 6 | +import java.util.ArrayList; |
| 7 | +import java.util.HashSet; |
| 8 | +import java.util.StringTokenizer; |
| 9 | + |
| 10 | +public class Main_1700_멀티탭_스케줄링_김태윤 { |
| 11 | + |
| 12 | + //미완 |
| 13 | + |
| 14 | + /* |
| 15 | + * 27% 틀림 |
| 16 | + * |
| 17 | + * 2 15 |
| 18 | + * 3 2 1 2 1 2 1 2 1 3 3 3 3 3 3 |
| 19 | + * 답: 2 |
| 20 | + * |
| 21 | + */ |
| 22 | + public static void main(String[] args) throws IOException{ |
| 23 | + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); |
| 24 | + StringTokenizer st = new StringTokenizer(br.readLine()); |
| 25 | + |
| 26 | + int N,K; |
| 27 | + N = Integer.parseInt(st.nextToken()); //멀티탭 구멍 개수 |
| 28 | + K = Integer.parseInt(st.nextToken()); //전기용품 총 사용횟수 |
| 29 | + |
| 30 | + int arr[] = new int[K]; |
| 31 | + |
| 32 | + boolean multitap[] = new boolean[K+1]; |
| 33 | + int elec_machine[] = new int[K+1]; |
| 34 | + |
| 35 | + st = new StringTokenizer(br.readLine()); |
| 36 | + for(int i = 0; i<K; i++) { |
| 37 | + arr[i] = Integer.parseInt(st.nextToken()); |
| 38 | + elec_machine[arr[i]]++; |
| 39 | + } |
| 40 | + |
| 41 | + ArrayList<Integer> al = new ArrayList<Integer>(); |
| 42 | + |
| 43 | + int count = 0; |
| 44 | + int answer = 0; |
| 45 | + for(int i = 0; i<K; i++) { |
| 46 | + |
| 47 | + elec_machine[arr[i]]--; |
| 48 | + |
| 49 | + if(multitap[arr[i]]) |
| 50 | + continue; |
| 51 | + |
| 52 | + if(count<N) { |
| 53 | + |
| 54 | + count++; |
| 55 | + multitap[arr[i]] = true; |
| 56 | + |
| 57 | + al.add(arr[i]); |
| 58 | + |
| 59 | + }else { |
| 60 | + |
| 61 | + int myMax = Integer.MAX_VALUE; |
| 62 | + int index = -1; |
| 63 | + int al_index = -1; |
| 64 | + for(int j = 0; j<al.size(); j++) { |
| 65 | + int temp = al.get(j); |
| 66 | + if(elec_machine[temp] < myMax) { |
| 67 | + myMax = elec_machine[temp]; |
| 68 | + index = temp; |
| 69 | + al_index = j; |
| 70 | + } |
| 71 | + } |
| 72 | + |
| 73 | + multitap[index] = false; |
| 74 | + multitap[arr[i]] = true; |
| 75 | + al.remove(al_index); |
| 76 | + al.add(arr[i]); |
| 77 | + |
| 78 | + answer++; |
| 79 | + } |
| 80 | + } |
| 81 | + |
| 82 | + System.out.println(answer); |
| 83 | + |
| 84 | + } |
| 85 | + |
| 86 | +} |
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