結果
| 問題 |
No.318 学学学学学
|
| ユーザー |
 yuya178
|
| 提出日時 | 2017-12-21 10:52:58 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 1,180 ms / 2,000 ms |
| コード長 | 6,010 bytes |
| コンパイル時間 | 2,793 ms |
| コンパイル使用メモリ | 86,216 KB |
| 実行使用メモリ | 163,908 KB |
| 最終ジャッジ日時 | 2024-06-22 18:27:41 |
| 合計ジャッジ時間 | 26,376 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 26 |
ソースコード
import java.io.*;
import java.util.*;
import java.math.*;
// import java.awt.Point;
public class Main {
InputStream is;
PrintWriter out;
String INPUT = "";
long MOD = 1_000_000_007;
int inf = Integer.MAX_VALUE;
void solve()
{
int n = ni();
int[] a = new int[n];
for(int i = 0; i < n; i++){
a[i] = ni();
}
HashMap<Integer, Integer> first = new HashMap<>();
HashMap<Integer, Integer> last = new HashMap<>();
Set<Integer> set = new TreeSet<>();
for(int i = 0; i < n; i++){
last.put(a[i],i);
set.add(a[i]);
}
for(int i = n-1; i >= 0; i--){
first.put(a[i],i);
}
LazySegmentTree seg = new LazySegmentTree();
for(int t : set){
int left = first.get(t);
int right = last.get(t);
seg.add(left,right+1,t);
}
for(int i = 0; i < n; i++){
out.print(seg.query(i,i+1)+" ");
}
}
class LazySegmentTree {
int SIZE = 1 << 20;
long[][] seg;
LazySegmentTree() {
this.seg = new long[2 * SIZE][2];
for(int i=0;i<2*SIZE;++i){
seg[i][0] = 0;
seg[i][1] = 0;
}
}
// void update(int x, long value) {
// x += SIZE - 1;
// this.seg[x][0] += value;
// while (x > 0) {
// x = (x - 1) / 2;
// this.seg[x][0] = this.seg[2 * x + 1][0] + this.seg[2 * x + 2][0];
// }
// }
long comb(long a, long b){
return Math.min(a,b);
}
long query(int a,int b,int l,int r,int k){
eval(l,r,k);
if(a<=l&&r<=b) return seg[k][0];
if(b<=l||r<=a) return inf;
long ans1=query(a,b,l,(l+r)/2,2*k+1);
long ans2=query(a,b,(l+r)/2,r,2*k+2);
return comb(ans1,ans2);
}
long query(int l, int r) {
return query(l,r,0,SIZE,0);
}
void eval(int l, int r, int k){
if(this.seg[k][1]!=0){
this.seg[k][0] = this.seg[k][1];
if(r-l>1){
this.seg[2*k+1][1] = this.seg[k][1];
this.seg[2*k+2][1] = this.seg[k][1];
}
this.seg[k][1] = 0;
}
}
void add(int a, int b, long x, int l, int r, int k){
eval(l,r,k);
if(b<=l||r<=a) return;
if(a<=l&&r<=b){
this.seg[k][1] = x;
eval(l,r,k);
}
else{
add(a,b,x,l,(l+r)/2,2*k+1);
add(a,b,x,(l+r)/2,r,2*k+2);
this.seg[k][0] = comb(this.seg[2*k+1][0],this.seg[2*k+2][0]);
}
}
void add(int a, int b, long x){
add(a, b, x, 0, SIZE, 0);
}
}
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");
}
public static void main(String[] args) throws Exception { new Main().run(); }
private byte[] inbuf = new byte[1024];
private 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) && 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 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[] na(int n)
{
int[] a = new int[n];
for(int i = 0;i < n;i++)a[i] = ni();
return a;
}
private int ni()
{
int num = 0, 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 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)); }
}