結果
問題 | No.1463 Hungry Kanten |
ユーザー |
![]() |
提出日時 | 2023-06-24 08:53:20 |
言語 | Java (openjdk 23) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,902 bytes |
コンパイル時間 | 2,589 ms |
コンパイル使用メモリ | 81,556 KB |
実行使用メモリ | 132,780 KB |
最終ジャッジ日時 | 2024-07-01 12:09:20 |
合計ジャッジ時間 | 8,822 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
(要ログイン)
ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 19 TLE * 1 |
ソースコード
import java.util.*; import java.io.*; import java.math.*;public class Main{//見なくていいよ ここから------------------------------------------static class InputIterator{ArrayList<String> inputLine = new ArrayList<>(1024);int index = 0; int max; String read;InputIterator(){try{BufferedReader br = new BufferedReader(new InputStreamReader(System.in, "UTF-8"));while((read = br.readLine()) != null){inputLine.addAll(Arrays.asList(read.split(" ")));}}catch(IOException e){}max = inputLine.size();}boolean hasNext(){return (index < max);}String next(){if(hasNext()){return inputLine.get(index++);}else{throw new IndexOutOfBoundsException("There is no more input");}}}static HashMap<Integer, String> CONVSTR = new HashMap<>();static InputIterator ii = new InputIterator();//This class cannot be used in reactive problem.static PrintWriter out = new PrintWriter(System.out);static void flush(){out.flush();}static void myout(Object t){out.println(t);}static void myerr(Object... t){System.err.print("debug:");System.err.println(Arrays.deepToString(t));}static String next(){return ii.next();}static boolean hasNext(){return ii.hasNext();}static int nextInt(){return Integer.parseInt(next());}static long nextLong(){return Long.parseLong(next());}static double nextDouble(){return Double.parseDouble(next());}static ArrayList<String> nextCharArray(){return myconv(next(), 0);}static ArrayList<String> nextStrArray(int size){ArrayList<String> ret = new ArrayList<>(size);for(int i = 0; i < size; i++){ret.add(next());}return ret;}static ArrayList<Integer> nextIntArray(int size){ArrayList<Integer> ret = new ArrayList<>(size);for(int i = 0; i < size; i++){ret.add(Integer.parseInt(next()));}return ret;}static ArrayList<Long> nextLongArray(int size){ArrayList<Long> ret = new ArrayList<>(size);for(int i = 0; i < size; i++){ret.add(Long.parseLong(next()));}return ret;}@SuppressWarnings("unchecked")static String myconv(Object list, int no){//only joinStringBuilder sb = new StringBuilder("");String joinString = CONVSTR.get(no);if(list instanceof String[]){return String.join(joinString, (String[])list);}else if(list instanceof long[]){long[] tmp = (long[])list;if(tmp.length == 0){return "";}sb.append(String.valueOf(tmp[0]));for(int i = 1; i < tmp.length; i++){sb.append(joinString).append(String.valueOf(tmp[i]));}return sb.toString();}else if(list instanceof int[]){int[] tmp = (int[])list;if(tmp.length == 0){return "";}sb.append(String.valueOf(tmp[0]));for(int i = 1; i < tmp.length; i++){sb.append(joinString).append(String.valueOf(tmp[i]));}return sb.toString();}else if(list instanceof ArrayList){ArrayList tmp = (ArrayList)list;if(tmp.size() == 0){return "";}sb.append(tmp.get(0));for(int i = 1; i < tmp.size(); i++){sb.append(joinString).append(tmp.get(i));}return sb.toString();}else{throw new ClassCastException("Don't join");}}static ArrayList<String> myconv(String str, int no){//only splitString splitString = CONVSTR.get(no);return new ArrayList<String>(Arrays.asList(str.split(splitString)));}static ArrayList<String> myconv(String str, String no){return new ArrayList<String>(Arrays.asList(str.split(no)));}public static void main(String[] args){CONVSTR.put(8, " "); CONVSTR.put(9, "\n"); CONVSTR.put(0, "");solve();flush();}//見なくていいよ ここまで------------------------------------------//このコードをコンパイルするときは、「-encoding UTF-8」を指定することstatic void solve(){//ここがメイン関数int N = nextInt();int K = nextInt();ArrayList<BigInteger> list = new ArrayList<>();for(int i = 0; i < N; i++){list.add(new BigInteger(next()));}HashSet<String> used = new HashSet<>();for(int i = 1; i < (1 << N); i++){ArrayList<BigInteger> select = new ArrayList<>();for(int j = 0; j < N; j++){if((i & (1 << j)) != 0){select.add(list.get(j));}}if(select.size() >= K){BigInteger plus = new BigInteger("0");BigInteger multi = new BigInteger("1");for(int j = 0; j < select.size(); j++){plus = plus.add(select.get(j));multi = multi.multiply(select.get(j));}used.add(plus.toString());used.add(multi.toString());}}myout(used.size());}//メソッド追加エリア ここから//メソッド追加エリア ここまで}