結果

問題 No.1463 Hungry Kanten
ユーザー watarimaycry2watarimaycry2
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
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 19 TLE * 1
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

import java.util.*; import java.io.*; import java.math.*;
public class Main{
// ------------------------------------------
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 join
StringBuilder 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 split
String 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();
}
// ------------------------------------------
//-encoding UTF-8
static void solve(){//
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());
}
// 
// 
}
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