結果
問題 | No.67 よくある棒を切る問題 (1) |
ユーザー | Oland |
提出日時 | 2019-04-02 20:15:22 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 289 ms / 5,000 ms |
コード長 | 3,515 bytes |
コンパイル時間 | 3,075 ms |
コンパイル使用メモリ | 78,952 KB |
実行使用メモリ | 42,248 KB |
最終ジャッジ日時 | 2024-11-08 12:53:15 |
合計ジャッジ時間 | 10,531 ms |
ジャッジサーバーID (参考情報) |
judge1 / 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 | 268 ms
40,720 KB |
testcase_01 | AC | 56 ms
36,552 KB |
testcase_02 | AC | 150 ms
39,320 KB |
testcase_03 | AC | 181 ms
39,720 KB |
testcase_04 | AC | 210 ms
42,176 KB |
testcase_05 | AC | 209 ms
40,396 KB |
testcase_06 | AC | 206 ms
42,248 KB |
testcase_07 | AC | 243 ms
42,192 KB |
testcase_08 | AC | 241 ms
41,952 KB |
testcase_09 | AC | 220 ms
40,572 KB |
testcase_10 | AC | 199 ms
42,124 KB |
testcase_11 | AC | 203 ms
40,496 KB |
testcase_12 | AC | 200 ms
41,876 KB |
testcase_13 | AC | 210 ms
40,484 KB |
testcase_14 | AC | 234 ms
42,032 KB |
testcase_15 | AC | 206 ms
40,444 KB |
testcase_16 | AC | 281 ms
42,204 KB |
testcase_17 | AC | 289 ms
42,020 KB |
testcase_18 | AC | 260 ms
42,104 KB |
testcase_19 | AC | 273 ms
40,592 KB |
testcase_20 | AC | 269 ms
40,516 KB |
testcase_21 | AC | 288 ms
42,128 KB |
testcase_22 | AC | 246 ms
40,252 KB |
testcase_23 | AC | 252 ms
40,472 KB |
testcase_24 | AC | 55 ms
37,024 KB |
testcase_25 | AC | 68 ms
36,924 KB |
testcase_26 | AC | 58 ms
36,948 KB |
testcase_27 | AC | 57 ms
37,144 KB |
testcase_28 | AC | 120 ms
38,664 KB |
testcase_29 | AC | 97 ms
38,152 KB |
testcase_30 | AC | 70 ms
37,180 KB |
ソースコード
import java.io.*;import java.util.*;import java.util.Map.Entry;public class Main {final boolean isDebug = false;String fileName = "input.txt";FastScanner sc;PrintWriter out;final int MOD = (int)1e9+7;final int INF = Integer.MAX_VALUE / 2;int N;long K;int[] L;void solve() throws Exception{N = sc.nextInt();L = new int[N];int max = 0;for(int i = 0; i < N; i++){L[i] = sc.nextInt();max = Math.max(max, L[i]);}K = sc.nextLong();double ok = 0, ng = (double)max+1;int cnt = 0;while(Math.abs(ng - ok) > 1e-9 && cnt <= 100){cnt++;double mid = (ok + ng) / 2;if(makeNum(mid) >= K) ok = mid;else ng = mid;}System.out.println(ok);}long makeNum(double x){long num = 0;for(int len : L){num += (double)len / x;}return num;}/* end solve *//* main */public static void main(String[] args) throws Exception {new Main().m();}void m() throws Exception {long S = System.currentTimeMillis();sc = (isDebug) ? new FastScanner(new FileInputStream(fileName)) : new FastScanner(System.in);out = new PrintWriter(System.out);solve();out.flush();long G = System.currentTimeMillis();if(isDebug){System.out.println("---Debug---");System.out.printf("%8d ms", (G-S));}}/* end main */}/* end Main */class FastScanner {private InputStream in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;public FastScanner(InputStream in) {this.in = in;}private boolean hasNextByte() {if (ptr < buflen) {return true;}else{ptr = 0;try {buflen = in.read(buffer);} catch (IOException e) {e.printStackTrace();}if (buflen <= 0) {return false;}}return true;}private int readByte() {if (hasNextByte()) return buffer[ptr++];else return -1;}private static boolean isPrintableChar(int c){return 33 <= c && c <= 126;}public boolean hasNext() {while(hasNextByte() && !isPrintableChar(buffer[ptr]))ptr++; return hasNextByte();}public String next() {if (!hasNext()) throw new NoSuchElementException();StringBuilder sb = new StringBuilder();int b = readByte();while(isPrintableChar(b)) {sb.appendCodePoint(b);b = readByte();}return sb.toString();}public long nextLong() {if (!hasNext()) throw new NoSuchElementException();long n = 0;boolean minus = false;int b = readByte();if (b == '-') {minus = true;b = readByte();}if (b < '0' || '9' < b) {throw new NumberFormatException();}while(true){if ('0' <= b && b <= '9') {n *= 10;n += b - '0';}else if(b == -1 || !isPrintableChar(b)){return minus ? -n : n;}else{throw new NumberFormatException();}b = readByte();}}public int nextInt() {long nl = nextLong();if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();return (int) nl;}public double nextDouble() {return Double.parseDouble(next());}}