結果
問題 | No.15 カタログショッピング |
ユーザー | holeguma |
提出日時 | 2015-10-12 01:29:32 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 246 ms / 5,000 ms |
コード長 | 5,594 bytes |
コンパイル時間 | 2,350 ms |
コンパイル使用メモリ | 85,440 KB |
実行使用メモリ | 47,684 KB |
最終ジャッジ日時 | 2024-07-21 07:09:22 |
合計ジャッジ時間 | 4,207 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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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 | 49 ms
36,864 KB |
testcase_01 | AC | 46 ms
36,716 KB |
testcase_02 | AC | 48 ms
36,708 KB |
testcase_03 | AC | 47 ms
36,448 KB |
testcase_04 | AC | 46 ms
36,756 KB |
testcase_05 | AC | 185 ms
47,628 KB |
testcase_06 | AC | 210 ms
47,452 KB |
testcase_07 | AC | 246 ms
46,836 KB |
testcase_08 | AC | 205 ms
47,684 KB |
testcase_09 | AC | 217 ms
47,664 KB |
ソースコード
import java.io.InputStream; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.BitSet; import java.util.Comparator; import java.util.Collections; import java.util.Deque; import java.util.HashMap; import java.util.HashSet; import java.util.InputMismatchException; import java.util.Map; import java.util.NoSuchElementException; import java.util.PriorityQueue; import java.util.TreeMap; import java.util.TreeSet; import java.math.BigDecimal; import java.math.BigInteger; public class Main{ static PrintWriter out; static InputReader ir; static final int INF=Integer.MAX_VALUE; static final long LINF=Long.MAX_VALUE; static void solve(){ int n=ir.nextInt(); int s=ir.nextInt(); int[] p=ir.nextIntArray(n); int r=n/2; int l=n-r; ArrayList<Long> list=new ArrayList<Long>(); ArrayList<Pair> right=new ArrayList<Pair>(); ArrayList<Pair> left=new ArrayList<Pair>(); for(int i=0;i<1<<r;i++){ int res=0; for(int j=0;j<r;j++){ if((i&(1<<j))!=0) res+=p[j]; } if(res<=s) right.add(new Pair(res,(long)i)); } for(int i=0;i<1<<l;i++){ int res=0; for(int j=0;j<l;j++){ if((i&(1<<j))!=0) res+=p[r+j]; } if(res<=s) left.add(new Pair(res,(long)i<<r)); } Collections.sort(left,Pair.X_ORDER); int[] arr=new int[left.size()]; for(int i=0;i<left.size();i++) arr[i]=left.get(i).x; for(int i=0;i<right.size();i++){ Pair pp=right.get(i); int ub=upper_bound(arr,0,arr.length-1,s-pp.x); int lb=lower_bound(arr,0,arr.length-1,s-pp.x); if(ub-lb>0){ for(int j=lb;j<ub;j++){ list.add(left.get(j).y|pp.y); } } } Collections.sort(list,new Comparator<Long>(){ public int compare(Long a,Long b){ for(int i=0;i<n;i++){ if((a&(long)(1<<i))==0&&(b&(1<<i))!=0) return 1; if((a&(long)(1<<i))!=0&&(b&(1<<i))==0) return -1; } return 0; } }); for(int i=0;i<list.size();i++){ long a=list.get(i); StringBuilder sb=new StringBuilder(); for(int j=0;j<n;j++){ if((a&(long)(1<<j))!=0){ sb.append(j+1); sb.append(" "); } } sb.deleteCharAt(sb.length()-1); out.println(sb); } } public static void main(String[] args) throws Exception{ ir=new InputReader(System.in); out=new PrintWriter(System.out); solve(); out.flush(); } static class Pair{ int x; long y; public Pair(int x,long y){ this.x=x; this.y=y; } public static Comparator<Pair> X_ORDER=new Comp1(); public static Comparator<Pair> Y_ORDER=new Comp2(); private static class Comp1 implements Comparator<Pair>{ public int compare(Pair p1,Pair p2){ return (p1.x>p2.x)?1:(p1.x<p2.x)?-1:0; } } private static class Comp2 implements Comparator<Pair>{ public int compare(Pair p1,Pair p2){ return (p1.y>p2.y)?1:(p1.y<p2.y)?-1:0; } } } public static int lower_bound(int[] a,int fromIndex,int toIndex,int val){ if(a[fromIndex]>=val) return fromIndex; if(a[toIndex]<val) return toIndex+1; int lb=fromIndex-1,ub=toIndex; while(ub-lb>1){ int mid=(ub+lb)/2; if(a[mid]>=val){ ub=mid; } else{ lb=mid; } } return ub; } public static int upper_bound(int[] a,int fromIndex,int toIndex,int val){ if(a[fromIndex]>val) return fromIndex; if(a[toIndex]<=val) return toIndex+1; int lb=fromIndex-1,ub=toIndex; while(ub-lb>1){ int mid=(ub+lb)/2; if(a[mid]>val){ ub=mid; } else{ lb=mid; } } return ub; } static class InputReader { private InputStream in; private byte[] buffer=new byte[1024]; private int curbuf; private int lenbuf; public InputReader(InputStream in) {this.in=in; this.curbuf=this.lenbuf=0;} public boolean hasNextByte() { if(curbuf>=lenbuf){ curbuf= 0; try{ lenbuf=in.read(buffer); }catch(IOException e) { throw new InputMismatchException(); } if(lenbuf<=0) return false; } return true; } private int readByte(){if(hasNextByte()) return buffer[curbuf++]; else return -1;} private boolean isSpaceChar(int c){return !(c>=33&&c<=126);} private void skip(){while(hasNextByte()&&isSpaceChar(buffer[curbuf])) curbuf++;} public boolean hasNext(){skip(); return hasNextByte();} public String next(){ if(!hasNext()) throw new NoSuchElementException(); StringBuilder sb=new StringBuilder(); int b=readByte(); while(!isSpaceChar(b)){ sb.appendCodePoint(b); b=readByte(); } return sb.toString(); } public int nextInt() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } int res=0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public long nextLong() { if(!hasNext()) throw new NoSuchElementException(); int c=readByte(); while (isSpaceChar(c)) c=readByte(); boolean minus=false; if (c=='-') { minus=true; c=readByte(); } long res = 0; do{ if(c<'0'||c>'9') throw new InputMismatchException(); res=res*10+c-'0'; c=readByte(); }while(!isSpaceChar(c)); return (minus)?-res:res; } public double nextDouble(){return Double.parseDouble(next());} public BigInteger nextBigInteger(){return new BigInteger(next());} public BigDecimal nextBigDecimal(){return new BigDecimal(next());} public int[] nextIntArray(int n){ int[] a=new int[n]; for(int i=0;i<n;i++) a[i]=nextInt(); return a; } public char[][] nextCharMap(int n,int m){ char[][] map=new char[n][m]; for(int i=0;i<n;i++) map[i]=next().toCharArray(); return map; } } }