結果
問題 | No.59 鉄道の旅 |
ユーザー | holeguma |
提出日時 | 2015-10-02 23:15:16 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 132 ms / 5,000 ms |
コード長 | 3,785 bytes |
コンパイル時間 | 2,381 ms |
コンパイル使用メモリ | 80,336 KB |
実行使用メモリ | 46,592 KB |
最終ジャッジ日時 | 2024-06-07 02:02:09 |
合計ジャッジ時間 | 4,426 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 56 ms
44,744 KB |
testcase_01 | AC | 56 ms
44,304 KB |
testcase_02 | AC | 57 ms
44,888 KB |
testcase_03 | AC | 58 ms
44,816 KB |
testcase_04 | AC | 125 ms
46,592 KB |
testcase_05 | AC | 57 ms
44,668 KB |
testcase_06 | AC | 58 ms
44,504 KB |
testcase_07 | AC | 58 ms
44,468 KB |
testcase_08 | AC | 86 ms
45,696 KB |
testcase_09 | AC | 84 ms
45,556 KB |
testcase_10 | AC | 85 ms
45,584 KB |
testcase_11 | AC | 78 ms
45,440 KB |
testcase_12 | AC | 99 ms
46,212 KB |
testcase_13 | AC | 132 ms
46,472 KB |
testcase_14 | AC | 112 ms
46,344 KB |
testcase_15 | AC | 58 ms
44,824 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.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.math.BigDecimal; import java.math.BigInteger; public class Main{ static final InputStream in=System.in; static final PrintWriter out=new PrintWriter(System.out); static final int INF=Integer.MAX_VALUE; static final long LINF=Long.MAX_VALUE; static int N,K; public static void main(String[] args) throws IOException{ InputReader ir=new InputReader(in); BIT bit=new BIT(1000001); N=ir.nextInt(); K=ir.nextInt(); while(N-->0){ int x=ir.nextInt(); if(x>0){ if(bit.segmentsum(x,bit.size())<K){ bit.update(x,1); } } else{ if(bit.get(-x)>0){ bit.update(-x,-1); } } } out.println(bit.sum(bit.size())); out.flush(); } static class BIT{ private long[] bit; private int SIZE; public BIT(int n){ bit=new long[n+1]; SIZE=n; } //sum of segment[0,i) public long sum(int i){ long res=0; while(i>0){ res+=bit[i]; i-=i&-i; } return res; } //sum of segment[start,end) public long segmentsum(int start,int end){ return sum(end)-sum(start); } public long get(int i){ return sum(i+1)-sum(i); } public void update(int i,long x){ i++; while(i<=SIZE){ bit[i]+=x; i+=i&-i; } } public int size(){ return SIZE; } } 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 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; } } }