結果
問題 | No.815 Are you a traveller ? |
ユーザー | Oland |
提出日時 | 2019-04-20 08:59:09 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 54 ms / 2,000 ms |
コード長 | 3,062 bytes |
コンパイル時間 | 2,429 ms |
コンパイル使用メモリ | 78,548 KB |
実行使用メモリ | 50,160 KB |
最終ジャッジ日時 | 2024-09-25 06:18:25 |
合計ジャッジ時間 | 3,169 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 51 ms
50,040 KB |
testcase_01 | AC | 53 ms
50,160 KB |
testcase_02 | AC | 53 ms
50,152 KB |
testcase_03 | AC | 53 ms
50,020 KB |
testcase_04 | AC | 54 ms
50,024 KB |
testcase_05 | AC | 52 ms
50,024 KB |
testcase_06 | AC | 52 ms
50,104 KB |
ソースコード
import java.io.*; import java.util.*; import java.util.Map.Entry; public class Main { //final boolean isDebug = true; 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; void solve() throws Exception{ System.out.println((sc.nextInt()+1) / 2); } /* 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()); } }