結果
問題 | No.1664 Unstable f(n) |
ユーザー | Jetman |
提出日時 | 2021-09-03 23:22:02 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 148 ms / 2,000 ms |
コード長 | 2,330 bytes |
コンパイル時間 | 2,290 ms |
コンパイル使用メモリ | 78,012 KB |
実行使用メモリ | 51,304 KB |
最終ジャッジ日時 | 2023-08-22 01:17:05 |
合計ジャッジ時間 | 6,485 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge14 |
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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 | 45 ms
49,468 KB |
testcase_01 | AC | 47 ms
49,508 KB |
testcase_02 | AC | 46 ms
49,420 KB |
testcase_03 | AC | 46 ms
49,540 KB |
testcase_04 | AC | 45 ms
49,536 KB |
testcase_05 | AC | 45 ms
49,484 KB |
testcase_06 | AC | 46 ms
49,496 KB |
testcase_07 | AC | 45 ms
49,500 KB |
testcase_08 | AC | 46 ms
49,964 KB |
testcase_09 | AC | 45 ms
49,408 KB |
testcase_10 | AC | 46 ms
49,520 KB |
testcase_11 | AC | 63 ms
49,380 KB |
testcase_12 | AC | 127 ms
50,596 KB |
testcase_13 | AC | 121 ms
50,904 KB |
testcase_14 | AC | 113 ms
50,872 KB |
testcase_15 | AC | 76 ms
50,944 KB |
testcase_16 | AC | 103 ms
51,304 KB |
testcase_17 | AC | 137 ms
50,788 KB |
testcase_18 | AC | 141 ms
50,996 KB |
testcase_19 | AC | 148 ms
50,888 KB |
testcase_20 | AC | 116 ms
50,600 KB |
testcase_21 | AC | 46 ms
49,424 KB |
testcase_22 | AC | 45 ms
49,448 KB |
testcase_23 | AC | 46 ms
49,492 KB |
testcase_24 | AC | 46 ms
49,456 KB |
testcase_25 | AC | 46 ms
49,676 KB |
testcase_26 | AC | 45 ms
49,428 KB |
testcase_27 | AC | 44 ms
49,544 KB |
testcase_28 | AC | 45 ms
49,836 KB |
testcase_29 | AC | 45 ms
49,900 KB |
testcase_30 | AC | 45 ms
49,548 KB |
testcase_31 | AC | 46 ms
49,496 KB |
testcase_32 | AC | 51 ms
50,292 KB |
testcase_33 | AC | 47 ms
49,576 KB |
testcase_34 | AC | 49 ms
49,872 KB |
testcase_35 | AC | 113 ms
50,764 KB |
testcase_36 | AC | 46 ms
49,424 KB |
testcase_37 | AC | 71 ms
50,900 KB |
testcase_38 | AC | 44 ms
49,400 KB |
testcase_39 | AC | 48 ms
49,444 KB |
testcase_40 | AC | 60 ms
49,892 KB |
ソースコード
import java.io.OutputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.StringTokenizer; import java.io.IOException; import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.InputStream; /** * Built using CHelper plug-in * Actual solution is at the top */ public class Main { public static void main(String[] args) { InputStream inputStream = System.in; OutputStream outputStream = System.out; FastReader in = new FastReader(inputStream); PrintWriter out = new PrintWriter(outputStream); No1664UnstableFn solver = new No1664UnstableFn(); solver.solve(1, in, out); out.close(); } static class No1664UnstableFn { public void solve(int testNumber, FastReader in, PrintWriter out) { long n = in.nextLong(); long ans = n; long tmp = toLong((Math.sqrt(n))); ans = Math.min(ans, tmp + 2 + (n - tmp * tmp)); for (long i = 2; i * i * i <= n; i++) { long k = toLong((Math.log(n) / Math.log(i))); if (Math.pow(i, k) > n) { out.println(i + " " + k); } ans = Math.min(ans, i + k + (n - toLong(Math.pow(i, k)))); } out.println(ans); } private long toLong(double sqrt) { long tmp = (long) sqrt; if (Math.abs(tmp + 1.0 - sqrt) < 0.00000001) return tmp + 1; return tmp; } } static class FastReader { BufferedReader br; StringTokenizer st = new StringTokenizer(""); public FastReader() { br = new BufferedReader(new InputStreamReader(System.in)); } public FastReader(InputStream in) { br = new BufferedReader(new InputStreamReader(in)); } public String next() { while (st == null || (!st.hasMoreElements())) { try { st = new StringTokenizer(br.readLine()); } catch (IOException e) { e.printStackTrace(); } } return st.nextToken(); } public long nextLong() { return Long.parseLong(next()); } } }