結果
問題 | No.482 あなたの名は |
ユーザー | uwi |
提出日時 | 2017-02-10 22:23:10 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 120 ms / 2,000 ms |
コード長 | 3,612 bytes |
コンパイル時間 | 3,815 ms |
コンパイル使用メモリ | 86,908 KB |
実行使用メモリ | 54,040 KB |
最終ジャッジ日時 | 2024-06-09 10:49:17 |
合計ジャッジ時間 | 6,823 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 | 48 ms
50,264 KB |
testcase_01 | AC | 47 ms
50,176 KB |
testcase_02 | AC | 47 ms
50,344 KB |
testcase_03 | AC | 48 ms
50,272 KB |
testcase_04 | AC | 49 ms
50,056 KB |
testcase_05 | AC | 46 ms
49,868 KB |
testcase_06 | AC | 49 ms
50,108 KB |
testcase_07 | AC | 49 ms
50,088 KB |
testcase_08 | AC | 46 ms
49,932 KB |
testcase_09 | AC | 45 ms
52,224 KB |
testcase_10 | AC | 46 ms
49,780 KB |
testcase_11 | AC | 49 ms
50,392 KB |
testcase_12 | AC | 48 ms
50,336 KB |
testcase_13 | AC | 47 ms
49,884 KB |
testcase_14 | AC | 46 ms
50,148 KB |
testcase_15 | AC | 106 ms
53,588 KB |
testcase_16 | AC | 108 ms
53,920 KB |
testcase_17 | AC | 109 ms
53,936 KB |
testcase_18 | AC | 105 ms
53,880 KB |
testcase_19 | AC | 109 ms
53,964 KB |
testcase_20 | AC | 104 ms
53,876 KB |
testcase_21 | AC | 120 ms
53,832 KB |
testcase_22 | AC | 112 ms
54,040 KB |
testcase_23 | AC | 105 ms
53,764 KB |
testcase_24 | AC | 106 ms
53,964 KB |
testcase_25 | AC | 120 ms
54,000 KB |
testcase_26 | AC | 120 ms
53,880 KB |
testcase_27 | AC | 94 ms
54,020 KB |
testcase_28 | AC | 108 ms
53,536 KB |
testcase_29 | AC | 116 ms
54,032 KB |
testcase_30 | AC | 48 ms
50,060 KB |
ソースコード
package contest170210; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; public class C { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(); long K = nl(); int[] d = na(n); for(int i = 0;i < n;i++)d[i]--; long min = 0; int[] cs = splitIntoCycleSizes(d); for(int v : cs)min += v-1; if(K >= min && K % 2 == min % 2){ out.println("YES"); }else{ out.println("NO"); } } public static int[] splitIntoCycleSizes(int[] f) { int n = f.length; int[] szs = new int[n]; boolean[] ved = new boolean[n]; int q = 0; for(int i = 0;i < n;i++){ if(!ved[i]){ int p = 0; for(int cur = i;!ved[cur];cur = f[cur], p++)ved[cur] = true; szs[q++] = p; } } return Arrays.copyOf(szs, q); } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new C().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }