結果

問題 No.1095 Smallest Kadomatsu Subsequence
ユーザー Oland
提出日時 2020-06-26 21:43:13
言語 Java
(openjdk 23)
結果
AC  
実行時間 1,372 ms / 2,000 ms
コード長 8,078 bytes
コンパイル時間 2,494 ms
コンパイル使用メモリ 83,008 KB
実行使用メモリ 77,704 KB
最終ジャッジ日時 2024-07-04 20:24:35
合計ジャッジ時間 17,834 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 3
other AC * 30
権限があれば一括ダウンロードができます

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.math.BigDecimal;
import java.util.*;
@SuppressWarnings("unused")
public class Main {
FastScanner in;
PrintWriter out;
final static int MOD = (int)1e9+7;
void solve(){
int N = in.nextInt();
long[] A = in.nextLongArray(N);
MultiSet<Long> L = new MultiSet<>(), R = new MultiSet<>();
for(int i = 0; i < N; i++) R.add(A[i]);
long min = Long.MAX_VALUE;
for(int i = 0; i < N; i++){
R.sub(A[i]);
if(!L.isEmpty() && !R.isEmpty()){
Long vl = L.firstKey(), vr = R.firstKey();
if(vl != null && vr != null && vl < A[i] && vr < A[i]) min = Math.min(min, vl + A[i] + vr);
}
{
Long vl = L.higherKey(A[i]), vr = R.higherKey(A[i]);
if(vl != null && vr != null) min = Math.min(min, vl + A[i] + vr);
}
L.add(A[i]);
}
out.println(min == Long.MAX_VALUE ? "-1" : min);
}
class MultiSet<K extends Comparable<K>> extends TreeMap<K,Integer>{
int sum = 0;
public int sum(){
return this.sum;
}
public int count(K k){
return this.getOrDefault(k, 0);
}
public int add(K k) {
int res = this.count(k) + 1;
this.put(k, res);
sum++;
return res;
}
public int sub(K k){
if(!this.containsKey(k)) return -1;
int res = this.count(k) - 1;
if(res == 0) this.remove(k);
else this.put(k, res);
sum--;
return res;
}
public int subAll(K k){
if(!this.containsKey(k)) return -1;
int cnt = this.count(k);
this.remove(k);
sum -= cnt;
return cnt;
}
}
public static void main(String[] args) {
new Main().m();
}
private void m() {
in = new FastScanner(System.in);
out = new PrintWriter(System.out);
/*
try {
String path = "input.txt";
out = new PrintWriter(new BufferedWriter(new FileWriter(new File(path))));
}catch (IOException e){
e.printStackTrace();
}
*/
solve();
out.flush();
in.close();
out.close();
}
static class FastScanner {
private Reader input;
public FastScanner() {this(System.in);}
public FastScanner(InputStream stream) {this.input = new BufferedReader(new InputStreamReader(stream));}
public void close() {
try {
this.input.close();
} catch (IOException e) {
e.printStackTrace();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public long nextLong() {
try {
int sign = 1;
int b = input.read();
while ((b < '0' || '9' < b) && b != '-' && b != '+') {
b = input.read();
}
if (b == '-') {
sign = -1;
b = input.read();
} else if (b == '+') {
b = input.read();
}
long ret = b - '0';
while (true) {
b = input.read();
if (b < '0' || '9' < b) return ret * sign;
ret *= 10;
ret += b - '0';
}
} catch (IOException e) {
e.printStackTrace();
return -1;
}
}
public double nextDouble() {
try {
double sign = 1;
int b = input.read();
while ((b < '0' || '9' < b) && b != '-' && b != '+') {
b = input.read();
}
if (b == '-') {
sign = -1;
b = input.read();
} else if (b == '+') {
b = input.read();
}
double ret = b - '0';
while (true) {
b = input.read();
if (b < '0' || '9' < b) break;
ret *= 10;
ret += b - '0';
}
if (b != '.') return sign * ret;
double div = 1;
b = input.read();
while ('0' <= b && b <= '9') {
ret *= 10;
ret += b - '0';
div *= 10;
b = input.read();
}
return sign * ret / div;
} catch (IOException e) {
e.printStackTrace();
return Double.NaN;
}
}
public char nextChar() {
try {
int b = input.read();
while (Character.isWhitespace(b)) {
b = input.read();
}
return (char) b;
} catch (IOException e) {
e.printStackTrace();
return 0;
}
}
public String nextStr() {
try {
StringBuilder sb = new StringBuilder();
int b = input.read();
while (Character.isWhitespace(b)) {
b = input.read();
}
while (b != -1 && !Character.isWhitespace(b)) {
sb.append((char) b);
b = input.read();
}
return sb.toString();
} catch (IOException e) {
e.printStackTrace();
return "";
}
}
public String nextLine() {
try {
StringBuilder sb = new StringBuilder();
int b = input.read();
while (b != -1 && b != '\n') {
sb.append((char) b);
b = input.read();
}
return sb.toString();
} catch (IOException e) {
e.printStackTrace();
return "";
}
}
public int[] nextIntArray(int n) {
int[] res = new int[n];
for (int i = 0; i < n; i++) {
res[i] = nextInt();
}
return res;
}
public int[] nextIntArrayDec(int n) {
int[] res = new int[n];
for (int i = 0; i < n; i++) {
res[i] = nextInt() - 1;
}
return res;
}
public int[] nextIntArray1Index(int n) {
int[] res = new int[n + 1];
for (int i = 0; i < n; i++) {
res[i + 1] = nextInt();
}
return res;
}
public long[] nextLongArray(int n) {
long[] res = new long[n];
for (int i = 0; i < n; i++) {
res[i] = nextLong();
}
return res;
}
public long[] nextLongArrayDec(int n) {
long[] res = new long[n];
for (int i = 0; i < n; i++) {
res[i] = nextLong() - 1;
}
return res;
}
public long[] nextLongArray1Index(int n) {
long[] res = new long[n + 1];
for (int i = 0; i < n; i++) {
res[i + 1] = nextLong();
}
return res;
}
public double[] nextDoubleArray(int n) {
double[] res = new double[n];
for (int i = 0; i < n; i++) {
res[i] = nextDouble();
}
return res;
}
}
}
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