結果
問題 | No.116 門松列(1) |
ユーザー |
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提出日時 | 2015-01-30 21:14:37 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 53 ms / 5,000 ms |
コード長 | 2,409 bytes |
コンパイル時間 | 2,408 ms |
コンパイル使用メモリ | 77,812 KB |
実行使用メモリ | 37,056 KB |
最終ジャッジ日時 | 2024-06-25 00:59:44 |
合計ジャッジ時間 | 4,538 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 21 |
ソースコード
import java.io.IOException;import java.util.InputMismatchException;public class Main {void run() {MyScanner sc = new MyScanner();int n = sc.nextInt();int[] a = sc.nextIntArray(n);int count = 0;for (int i = 0; i < n - 2; i++) {int x = a[i];int y = a[i + 1];int z = a[i + 2];if (x < y && y > z && x != z) {count++;} else if (x > y && y < z && x != z) {count++;}}System.out.println(count);}public static void main(String[] args) {new Main().run();}public void mapDebug(int[][] a) {System.out.println("--------map display---------");for (int i = 0; i < a.length; i++) {for (int j = 0; j < a[i].length; j++) {System.out.printf("%3d ", a[i][j]);}System.out.println();}System.out.println("----------------------------" + '\n');}class MyScanner {int read() {try {return System.in.read();} catch (IOException e) {throw new InputMismatchException();}}boolean isSpaceChar(int c) {return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;}boolean isEndline(int c) {return c == '\n' || c == '\r' || c == -1;}int nextInt() {return Integer.parseInt(next());}int[] nextIntArray(int n) {int[] array = new int[n];for (int i = 0; i < n; i++)array[i] = nextInt();return array;}long nextLong() {return Long.parseLong(next());}long[] nextLongArray(int n) {long[] array = new long[n];for (int i = 0; i < n; i++)array[i] = nextLong();return array;}double nextDouble() {return Double.parseDouble(next());}double[] nextDoubleArray(int n) {double[] array = new double[n];for (int i = 0; i < n; i++)array[i] = nextDouble();return array;}String next() {int c = read();while (isSpaceChar(c))c = read();StringBuilder res = new StringBuilder();do {res.appendCodePoint(c);c = read();} while (!isSpaceChar(c));return res.toString();}String[] nextStringArray(int n) {String[] array = new String[n];for (int i = 0; i < n; i++)array[i] = next();return array;}String nextLine() {int c = read();while (isEndline(c))c = read();StringBuilder res = new StringBuilder();do {res.appendCodePoint(c);c = read();} while (!isEndline(c));return res.toString();}}}