結果
問題 | No.385 カップ麺生活 |
ユーザー |
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提出日時 | 2023-04-04 17:32:48 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 57 ms / 2,000 ms |
コード長 | 2,415 bytes |
コンパイル時間 | 2,968 ms |
コンパイル使用メモリ | 84,804 KB |
実行使用メモリ | 37,444 KB |
最終ジャッジ日時 | 2024-10-01 09:08:58 |
合計ジャッジ時間 | 5,125 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 32 |
ソースコード
import java.io.*;import java.util.*;import java.util.stream.*;public class Main {public static void main(String[] args) throws Exception {Scanner sc = new Scanner();int m = sc.nextInt();int n = sc.nextInt();int[] counts = new int[m + 1];Arrays.fill(counts, -1);counts[0] = 0;for (int i = 0; i < n; i++) {int x = sc.nextInt();for (int j = 0; j + x <= m; j++) {if (counts[j] >= 0) {counts[j + x] = Math.max(counts[j + x], counts[j] + 1);}}}int max = 0;for (int i = 1; i <= m; i++) {if (counts[i] < 0) {counts[i] = 0;}max = Math.max(max, counts[i]);}long ans = 0;boolean[] isNotPrimes = new boolean[m + 1];for (int i = 2; i < m; i++) {if (!isNotPrimes[i]) {ans += counts[m - i];for (int j = 2; j * i <= m; j++) {isNotPrimes[j * i] = true;}}}ans += max;System.out.println(ans);}}class Utilities {static String arrayToLineString(Object[] arr) {return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));}static String arrayToLineString(int[] arr) {return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");StringBuilder sb = new StringBuilder();public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public double nextDouble() throws Exception {return Double.parseDouble(next());}public int[] nextIntArray() throws Exception {return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();}public String next() throws Exception {while (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}