結果
問題 | No.587 七対子 |
ユーザー |
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提出日時 | 2017-11-08 13:25:51 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 59 ms / 2,000 ms |
コード長 | 6,124 bytes |
コンパイル時間 | 2,530 ms |
コンパイル使用メモリ | 79,332 KB |
実行使用メモリ | 50,428 KB |
最終ジャッジ日時 | 2024-07-19 19:46:36 |
合計ジャッジ時間 | 5,511 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ファイルパターン | 結果 |
---|---|
other | AC * 35 |
ソースコード
import java.util.*;import java.io.*;public class Main {static IO io = new IO();public static void main(String[] args) {StringBuilder sb = new StringBuilder(io.next());List<Character> d = new ArrayList<Character>();for (int i=0; i<sb.length(); i++) if (!d.contains(sb.charAt(i))) {d.add(sb.charAt(i));sb.deleteCharAt(i--);}if (sb.length()==6) {for (int i=0; i<sb.length(); i++) {if (d.indexOf(sb.charAt(i))==-1) break;else {d.remove(d.indexOf(sb.charAt(i)));sb.deleteCharAt(i--);}}if (sb.length()==0 && d.size()==1) {System.out.println(d.get(0));return;}}System.out.println("Impossible");}static class IO extends PrintWriter {private final InputStream in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;IO() {this(System.in);}IO(InputStream source) {super(System.out);this.in = source;}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;}int readByte() {if (hasNextByte()) return buffer[ptr++];else return -1;}boolean isPrintableChar(int c) {return 33 <= c && c <= 126;}boolean isNewLine(int c) {return c == '\n' || c == '\r';}void skipUnprintable() {while (hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}void skipNewLine() {while (hasNextByte() && isNewLine(buffer[ptr])) ptr++;}boolean hasNext() {skipUnprintable();return hasNextByte();}boolean hasNextLine() {skipNewLine();return hasNextByte();}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();}char[] nextCharArray(int len) {if (!hasNext()) {throw new NoSuchElementException();}char[] s = new char[len];int i = 0;int b = readByte();while (isPrintableChar(b)) {if (i == len) {throw new InputMismatchException();}s[i++] = (char) b;b = readByte();}return s;}String nextLine() {if (!hasNextLine()) {throw new NoSuchElementException();}StringBuilder sb = new StringBuilder();int b = readByte();while (!isNewLine(b)) {sb.appendCodePoint(b);b = readByte();}return sb.toString();}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();}}int nextInt() {long nl = nextLong();if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) {throw new NumberFormatException();}return (int) nl;}char nextChar() {if (!hasNext()) {throw new NoSuchElementException();}return (char) readByte();}double nextDouble() {return Double.parseDouble(next());}int[] arrayInt(int n) {int[] a = new int[n];for (int i = 0; i < n; i++) a[i] = nextInt();return a;}long[] arrayLong(int n) {long[] a = new long[n];for (int i = 0; i < n; i++) a[i] = nextLong();return a;}double[] arrayDouble(int n) {double[] a = new double[n];for (int i = 0; i < n; i++) a[i] = nextDouble();return a;}void arrayInt(int[]... a) {for (int i = 0; i < a[0].length; i++) for (int j = 0; j < a.length; j++) a[j][i] = nextInt();}int[][] matrixInt(int n, int m) {int[][] a = new int[n][];for (int i = 0; i < n; i++) a[i] = arrayInt(m);return a;}char[][] charMap(int n, int m) {char[][] a = new char[n][];for (int i = 0; i < n; i++) a[i] = nextCharArray(m);return a;}public void close() {super.close();try {in.close();} catch (IOException e) {}}}}