結果
問題 | No.1972 Modulo Set |
ユーザー | tenten |
提出日時 | 2023-04-19 14:09:15 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 355 ms / 2,000 ms |
コード長 | 2,148 bytes |
コンパイル時間 | 2,702 ms |
コンパイル使用メモリ | 91,580 KB |
実行使用メモリ | 63,168 KB |
最終ジャッジ日時 | 2024-04-22 15:03:18 |
合計ジャッジ時間 | 12,946 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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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 | 53 ms
50,368 KB |
testcase_01 | AC | 54 ms
50,384 KB |
testcase_02 | AC | 53 ms
50,240 KB |
testcase_03 | AC | 161 ms
54,992 KB |
testcase_04 | AC | 180 ms
55,404 KB |
testcase_05 | AC | 197 ms
55,872 KB |
testcase_06 | AC | 214 ms
56,100 KB |
testcase_07 | AC | 265 ms
57,800 KB |
testcase_08 | AC | 192 ms
55,212 KB |
testcase_09 | AC | 106 ms
52,084 KB |
testcase_10 | AC | 191 ms
56,056 KB |
testcase_11 | AC | 268 ms
56,268 KB |
testcase_12 | AC | 147 ms
54,324 KB |
testcase_13 | AC | 105 ms
52,156 KB |
testcase_14 | AC | 116 ms
52,152 KB |
testcase_15 | AC | 269 ms
58,464 KB |
testcase_16 | AC | 282 ms
58,216 KB |
testcase_17 | AC | 202 ms
55,808 KB |
testcase_18 | AC | 56 ms
50,116 KB |
testcase_19 | AC | 249 ms
58,388 KB |
testcase_20 | AC | 276 ms
58,440 KB |
testcase_21 | AC | 184 ms
56,064 KB |
testcase_22 | AC | 247 ms
58,352 KB |
testcase_23 | AC | 334 ms
62,772 KB |
testcase_24 | AC | 227 ms
58,252 KB |
testcase_25 | AC | 258 ms
58,380 KB |
testcase_26 | AC | 298 ms
60,604 KB |
testcase_27 | AC | 327 ms
62,612 KB |
testcase_28 | AC | 232 ms
58,280 KB |
testcase_29 | AC | 270 ms
58,760 KB |
testcase_30 | AC | 306 ms
60,672 KB |
testcase_31 | AC | 106 ms
52,088 KB |
testcase_32 | AC | 280 ms
60,688 KB |
testcase_33 | AC | 355 ms
63,168 KB |
testcase_34 | AC | 349 ms
62,544 KB |
testcase_35 | AC | 348 ms
62,536 KB |
testcase_36 | AC | 329 ms
62,876 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) { ans++; } else if (x * 2 == m) { ans++; } else { int left = counts.get(x); int right = counts.getOrDefault(m - x, 0); if (left > right || (left == right && x * 2 < m)) { ans += left; } } } 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(); } }