結果

問題 No.610 区間賞(Section Award)
ユーザー GrenacheGrenache
提出日時 2017-12-12 18:52:50
言語 Java
(openjdk 23)
結果
AC  
実行時間 491 ms / 2,000 ms
コード長 5,028 bytes
コンパイル時間 4,171 ms
コンパイル使用メモリ 82,832 KB
実行使用メモリ 59,992 KB
最終ジャッジ日時 2024-12-14 06:18:43
合計ジャッジ時間 14,153 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 50
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ソースコード

diff #
プレゼンテーションモードにする

import java.io.*;
import java.util.*;
public class Main_yukicoder610 {
private static Scanner sc;
private static Printer pr;
private static void solve() {
int n = sc.nextInt();
int[] a = new int[n];
int[] ra = new int[n];
for (int i = 0; i < n; i++) {
a[i] = sc.nextInt() - 1;
ra[a[i]] = i;
}
SegmentTree st = new SegmentTree(n);
int[] b = new int[n];
List<Integer> ans = new ArrayList<>();
for (int i = 0; i < n; i++) {
b[i] = sc.nextInt() - 1;
if (st.query(ra[b[i]], n) == 0) {
ans.add(b[i]);
}
st.update(ra[b[i]], 1);
}
Collections.sort(ans);
for (int e : ans) {
pr.println(e + 1);
}
}
private static class SegmentTree {
int[] st;
int n;
SegmentTree(int n) {
this.n = 1;
while (this.n < n) {
this.n *= 2;
}
st = new int[2 * this.n - 1];
}
// i:0-indexed
void update(int i, int x) {
i = n - 1 + i;
st[i] += x;
while (i > 0) {
i = (i - 1) / 2;
st[i] += x;
}
}
// a, b:0-indexed
// [a, b)
int query(int a, int b) {
return query(a, b, 0, 0, n);
}
private int query(int a, int b, int i, int l, int r) {
if (a >= r || b <= l) {
return 0;
}
if (a <= l && b >= r) {
return st[i];
}
return query(a, b, i * 2 + 1, l, (l + r) / 2) + query(a, b, i * 2 + 2, (l + r) / 2, r);
}
}
// ---------------------------------------------------
public static void main(String[] args) {
sc = new Scanner(System.in);
pr = new Printer(System.out);
solve();
pr.close();
sc.close();
}
@SuppressWarnings("unused")
private static class Scanner {
BufferedReader br;
Scanner (InputStream in) {
br = new BufferedReader(new InputStreamReader(in));
}
private boolean isPrintable(int ch) {
return ch >= '!' && ch <= '~';
}
private boolean isCRLF(int ch) {
return ch == '\n' || ch == '\r' || ch == -1;
}
private int nextPrintable() {
try {
int ch;
while (!isPrintable(ch = br.read())) {
if (ch == -1) {
throw new NoSuchElementException();
}
}
return ch;
} catch (IOException e) {
throw new NoSuchElementException();
}
}
String next() {
try {
int ch = nextPrintable();
StringBuilder sb = new StringBuilder();
do {
sb.appendCodePoint(ch);
} while (isPrintable(ch = br.read()));
return sb.toString();
} catch (IOException e) {
throw new NoSuchElementException();
}
}
int nextInt() {
try {
// parseInt from Integer.parseInt()
boolean negative = false;
int res = 0;
int limit = -Integer.MAX_VALUE;
int radix = 10;
int fc = nextPrintable();
if (fc < '0') {
if (fc == '-') {
negative = true;
limit = Integer.MIN_VALUE;
} else if (fc != '+') {
throw new NumberFormatException();
}
fc = br.read();
}
int multmin = limit / radix;
int ch = fc;
do {
int digit = ch - '0';
if (digit < 0 || digit >= radix) {
throw new NumberFormatException();
}
if (res < multmin) {
throw new NumberFormatException();
}
res *= radix;
if (res < limit + digit) {
throw new NumberFormatException();
}
res -= digit;
} while (isPrintable(ch = br.read()));
return negative ? res : -res;
} catch (IOException e) {
throw new NoSuchElementException();
}
}
long nextLong() {
try {
// parseLong from Long.parseLong()
boolean negative = false;
long res = 0;
long limit = -Long.MAX_VALUE;
int radix = 10;
int fc = nextPrintable();
if (fc < '0') {
if (fc == '-') {
negative = true;
limit = Long.MIN_VALUE;
} else if (fc != '+') {
throw new NumberFormatException();
}
fc = br.read();
}
long multmin = limit / radix;
int ch = fc;
do {
int digit = ch - '0';
if (digit < 0 || digit >= radix) {
throw new NumberFormatException();
}
if (res < multmin) {
throw new NumberFormatException();
}
res *= radix;
if (res < limit + digit) {
throw new NumberFormatException();
}
res -= digit;
} while (isPrintable(ch = br.read()));
return negative ? res : -res;
} catch (IOException e) {
throw new NoSuchElementException();
}
}
float nextFloat() {
return Float.parseFloat(next());
}
double nextDouble() {
return Double.parseDouble(next());
}
String nextLine() {
try {
int ch;
while (isCRLF(ch = br.read())) {
if (ch == -1) {
throw new NoSuchElementException();
}
}
StringBuilder sb = new StringBuilder();
do {
sb.appendCodePoint(ch);
} while (!isCRLF(ch = br.read()));
return sb.toString();
} catch (IOException e) {
throw new NoSuchElementException();
}
}
void close() {
try {
br.close();
} catch (IOException e) {
// throw new NoSuchElementException();
}
}
}
private static class Printer extends PrintWriter {
Printer(PrintStream out) {
super(out);
}
}
}
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