結果
問題 | No.1972 Modulo Set |
ユーザー | tenten |
提出日時 | 2023-08-08 14:10:19 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 358 ms / 2,000 ms |
コード長 | 2,332 bytes |
コンパイル時間 | 2,831 ms |
コンパイル使用メモリ | 95,956 KB |
実行使用メモリ | 63,060 KB |
最終ジャッジ日時 | 2024-04-26 06:53:19 |
合計ジャッジ時間 | 13,259 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 52 ms
50,468 KB |
testcase_01 | AC | 53 ms
50,160 KB |
testcase_02 | AC | 52 ms
50,024 KB |
testcase_03 | AC | 162 ms
54,072 KB |
testcase_04 | AC | 176 ms
55,160 KB |
testcase_05 | AC | 172 ms
55,892 KB |
testcase_06 | AC | 238 ms
56,268 KB |
testcase_07 | AC | 270 ms
58,548 KB |
testcase_08 | AC | 216 ms
55,872 KB |
testcase_09 | AC | 106 ms
52,084 KB |
testcase_10 | AC | 174 ms
54,896 KB |
testcase_11 | AC | 271 ms
56,460 KB |
testcase_12 | AC | 154 ms
55,728 KB |
testcase_13 | AC | 117 ms
52,160 KB |
testcase_14 | AC | 114 ms
52,156 KB |
testcase_15 | AC | 271 ms
58,768 KB |
testcase_16 | AC | 282 ms
58,904 KB |
testcase_17 | AC | 188 ms
55,252 KB |
testcase_18 | AC | 55 ms
50,304 KB |
testcase_19 | AC | 246 ms
58,552 KB |
testcase_20 | AC | 284 ms
58,916 KB |
testcase_21 | AC | 225 ms
55,904 KB |
testcase_22 | AC | 245 ms
58,476 KB |
testcase_23 | AC | 326 ms
63,024 KB |
testcase_24 | AC | 229 ms
58,528 KB |
testcase_25 | AC | 244 ms
58,368 KB |
testcase_26 | AC | 285 ms
60,764 KB |
testcase_27 | AC | 320 ms
62,876 KB |
testcase_28 | AC | 237 ms
58,656 KB |
testcase_29 | AC | 277 ms
58,956 KB |
testcase_30 | AC | 300 ms
60,772 KB |
testcase_31 | AC | 110 ms
52,144 KB |
testcase_32 | AC | 282 ms
60,872 KB |
testcase_33 | AC | 358 ms
62,732 KB |
testcase_34 | AC | 315 ms
62,916 KB |
testcase_35 | AC | 318 ms
62,992 KB |
testcase_36 | AC | 344 ms
63,060 KB |
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 n = sc.nextInt(); long m = sc.nextLong(); HashMap<Long, Integer> counts = new HashMap<>(); for (int i = 0; i < n; i++) { long x = sc.nextLong() % m; counts.put(x, counts.getOrDefault(x, 0) + 1); } int ans = 0; for (long x : counts.keySet()) { if (x == 0 || x * 2 == m) { ans++; } else { if (counts.containsKey(m - x)) { if (counts.get(x) == counts.get(m - x)) { if (x < m - x) { ans += counts.get(x); } } else if (counts.get(x) > counts.get(m - x)) { ans += counts.get(x); } } else { ans += counts.get(x); } } } 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(); } }