結果
問題 | No.911 ラッキーソート |
ユーザー |
|
提出日時 | 2020-04-03 04:39:01 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 386 ms / 2,000 ms |
コード長 | 3,737 bytes |
コンパイル時間 | 2,343 ms |
コンパイル使用メモリ | 80,004 KB |
実行使用メモリ | 44,056 KB |
最終ジャッジ日時 | 2024-06-28 17:41:45 |
合計ジャッジ時間 | 15,714 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 46 |
ソースコード
import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.Arrays;import java.util.List;import java.util.NoSuchElementException;class Main {public static void main(String[] args) {new Main().run();}int b(long v,int pos) {return (int)((v>>pos)%2);}void fail() {System.out.println(0);System.exit(0);}ArrayList<Integer>[] v=new ArrayList[61];{for(int i=0;i<v.length;++i) {v[i]=new ArrayList<Integer>(List.of(0,1));}}void dfs(int l,int r,int pos,long[] A) {if(pos<0)return;int m=l+1;while(m<r&&b(A[m-1],pos)==b(A[m],pos))++m;boolean ok=true;for(int i=l;i<m;++i)ok&=b(A[i],pos)==b(A[l],pos);for(int i=m;i<r;++i)ok&=b(A[i],pos)==b(A[m],pos);if(!ok)fail();if(m==r) {//どちらもでもよい}else {v[pos].remove(Integer.valueOf(b(A[l],pos)^1));}if(m!=l)dfs(l,m,pos-1,A);if(m!=r)dfs(m,r,pos-1,A);}long f(long N) {long[][] dp=new long[62][2];dp[0][1]=1;for(int i=0;i+1<dp.length;++i) {for(int eq=0;eq<=1;++eq) {for(int val:v[60-i]) {if(eq==1&&b(N,60-i)<val)continue;int neq=eq&(val==b(N,60-i)?1:0);int ni=i+1;dp[ni][neq]+=dp[i][eq];}}}return Arrays.stream(dp[61]).sum();}// i != j => A_i != A_jvoid run() {FastScanner sc=new FastScanner();int N=sc.nextInt();long L=sc.nextLong();long R=sc.nextLong();long[] A=new long[N];for(int i=0;i<N;++i) {A[i]=sc.nextLong();}dfs(0,N,60,A);System.out.println(f(R)-f(L-1));}static void tr(Object... objects) {System.out.println(Arrays.deepToString(objects));}}class FastScanner {private final InputStream in = System.in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;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());}}