結果
問題 | No.2125 Inverse Sum |
ユーザー | tenten |
提出日時 | 2023-07-25 13:11:24 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 509 ms / 2,000 ms |
コード長 | 2,844 bytes |
コンパイル時間 | 2,832 ms |
コンパイル使用メモリ | 92,740 KB |
実行使用メモリ | 54,512 KB |
最終ジャッジ日時 | 2024-10-02 07:21:50 |
合計ジャッジ時間 | 7,475 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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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
37,244 KB |
testcase_01 | AC | 52 ms
37,276 KB |
testcase_02 | AC | 53 ms
37,216 KB |
testcase_03 | AC | 52 ms
37,032 KB |
testcase_04 | AC | 51 ms
37,084 KB |
testcase_05 | AC | 85 ms
37,956 KB |
testcase_06 | AC | 68 ms
37,832 KB |
testcase_07 | AC | 55 ms
37,068 KB |
testcase_08 | AC | 53 ms
37,100 KB |
testcase_09 | AC | 53 ms
36,940 KB |
testcase_10 | AC | 68 ms
37,428 KB |
testcase_11 | AC | 53 ms
37,304 KB |
testcase_12 | AC | 52 ms
37,124 KB |
testcase_13 | AC | 52 ms
37,212 KB |
testcase_14 | AC | 68 ms
38,568 KB |
testcase_15 | AC | 52 ms
37,128 KB |
testcase_16 | AC | 90 ms
38,952 KB |
testcase_17 | AC | 54 ms
37,168 KB |
testcase_18 | AC | 56 ms
36,936 KB |
testcase_19 | AC | 53 ms
37,224 KB |
testcase_20 | AC | 109 ms
40,132 KB |
testcase_21 | AC | 53 ms
37,288 KB |
testcase_22 | AC | 53 ms
37,264 KB |
testcase_23 | AC | 56 ms
37,128 KB |
testcase_24 | AC | 54 ms
36,932 KB |
testcase_25 | AC | 53 ms
37,192 KB |
testcase_26 | AC | 52 ms
37,236 KB |
testcase_27 | AC | 509 ms
54,512 KB |
testcase_28 | AC | 407 ms
50,708 KB |
testcase_29 | AC | 245 ms
47,892 KB |
testcase_30 | AC | 52 ms
37,084 KB |
testcase_31 | AC | 465 ms
50,824 KB |
testcase_32 | AC | 357 ms
47,772 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 p = sc.nextInt(); int q = sc.nextInt(); int gcd = getGCD(p, q); p /= gcd; q /= gcd; long sqrt = (long)q * q; ArrayList<Long> parts = new ArrayList<>(); for (long i = 1; i <= Math.sqrt(q); i++) { if (q % i == 0) { parts.add(i); if (i * i < q) { parts.add(q / i); } } } TreeSet<Long> result = new TreeSet<>(); for (long x : parts) { for (long y : parts) { if (x > y) { continue; } result.add(x * y); } } ArrayList<Long> ans1 = new ArrayList<>(); ArrayList<Long> ans2 = new ArrayList<>(); for (long x : result) { long y = x + q; long z = sqrt / x + q; if (y % p == 0 && z % p == 0) { ans1.add(y / p); ans2.add(z / p); } } System.out.println(ans1.size()); StringBuilder sb = new StringBuilder(); for (int i = 0; i < ans1.size(); i++) { sb.append(ans1.get(i)).append(" ").append(ans2.get(i)).append("\n"); } System.out.print(sb); } static int getGCD(int x, int y) { if (y == 0) { return x; } else { return getGCD(y, x % y); } } } 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(); } }