結果
問題 | No.182 新規性の虜 |
ユーザー |
|
提出日時 | 2019-03-01 12:32:07 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 189 ms / 5,000 ms |
コード長 | 2,340 bytes |
コンパイル時間 | 2,209 ms |
コンパイル使用メモリ | 79,036 KB |
実行使用メモリ | 59,468 KB |
最終ジャッジ日時 | 2024-06-23 12:01:42 |
合計ジャッジ時間 | 6,154 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 27 |
ソースコード
import java.util.*; import static java.lang.System.*; import java.io.*; class Main { static int maxInt = Integer.MAX_VALUE; static int minInt = Integer.MIN_VALUE; static int max (int... ar) {Arrays.sort(ar);return ar[ar.length-1];} static int min (int... ar) {Arrays.sort(ar);return ar[0];} static FastScanner sc = new FastScanner(); public static void main(String[] args) { //MAIN---------------------------------------------------------- int n = sc.nextInt(); HashMap<Integer, Integer> map = new HashMap<>(); for (int i=0; i<n; i++) { int temp = sc.nextInt(); map.put(temp, map.getOrDefault(temp,0)+1); } int ans = 0; for (Map.Entry<Integer, Integer> e: map.entrySet()) { if (e.getValue() == 1) ans++; } out.println(ans); //-------------------------------------------------------------- } } class FastScanner { private InputStream in = System.in; private byte[] buffer = new byte[1024]; private int length = 0; private int p = 0; boolean hasNextByte () { if (p < length) return true; else { p = 0; try {length = in.read(buffer);} catch (Exception e) {e.printStackTrace();} if (length == 0) return false; } return true; } int readByte () { if (hasNextByte() == true) return buffer[p++]; return -1; } boolean isPrintable (int n) {return 33<=n&&n<=126;} void skip () { while (hasNextByte() && !isPrintable(buffer[p])) p++; } boolean hasNext () {skip(); return hasNextByte();} String next () { if (!hasNext()) throw new NoSuchElementException(); StringBuilder sb = new StringBuilder(); int temp = readByte(); while (isPrintable(temp)) { sb.appendCodePoint(temp); temp = readByte(); } return sb.toString(); } public int nextInt () { return (int) nextLong(); } public int[] nextInts (int n) { int[] ar = new int[n]; for (int i=0; i<n; i++) ar[i] = nextInt(); return ar; } public long nextLong () { if (!hasNext()) throw new NoSuchElementException(); boolean minus = false; int temp = readByte(); if (temp == '-') { minus = true; temp = readByte(); } if (temp<'0' || '9'<temp) throw new NumberFormatException(); long n = 0; while (isPrintable(temp)) { if ('0'<=temp && temp<='9') { n *= 10; n += temp - '0'; } temp = readByte(); } return minus? -n : n; } }