結果
| 問題 | No.2375 watasou and hibit's baseball |
| ユーザー |
 shojin_pro
|
| 提出日時 | 2023-07-07 23:30:36 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 308 ms / 2,000 ms |
| コード長 | 19,212 bytes |
| コンパイル時間 | 2,963 ms |
| コンパイル使用メモリ | 92,344 KB |
| 実行使用メモリ | 52,776 KB |
| 最終ジャッジ日時 | 2024-07-21 19:53:29 |
| 合計ジャッジ時間 | 8,802 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge1 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 36 |
ソースコード
import java.util.*;
import java.io.*;
public class Main {
static ContestScanner sc = new ContestScanner(System.in);
static ContestPrinter pw = new ContestPrinter(System.out);
static StringBuilder sb = new StringBuilder();
static long mod = (long) 1e9 + 7;
public static void main(String[] args) throws Exception {
//int T = sc.nextInt();
//for(int i = 0; i < T; i++)solve();
solve();
pw.flush();
}
public static void solve() {
int N = sc.nextInt();
int A = sc.nextInt();
int B = sc.nextInt();
boolean[][][] ok = new boolean[1 << N][N+1][N+1];
ok[0][N][N] = true;
ArrayList<int[]> arr = new ArrayList<>();
for(int i = 0; i < N; i++){
int x = sc.nextInt();
int y = sc.nextInt();
int z = sc.nextInt();
arr.add(new int[]{x,y,z});
}
int ans = 0;
boolean[] used = new boolean[N];
for(int i = 0; i < (1<<N); i++){
for(int j = 0; j <= N; j++){
for(int j2 = 0; j2 <= N; j2++){
if(!ok[i][j][j2]) continue;
int bitCount = Integer.bitCount(i);
for(int k = 0; k < N; k++){
if((i >> k) % 2 == 1){
used[k] = true;
}else{
used[k] = false;
}
}
if(j != N && !used[j]) continue;
if(j2 != N && !used[j2]) continue;
int[] prev = j != N ? arr.get(j) : null;
int[] prev2 = j2 != N ? arr.get(j2) : null;
for(int k = 0; k < N; k++){
if(used[k]) continue;
int[] next = arr.get(k);
boolean flg = false;
if(bitCount == 0) flg = true;
if(bitCount == 1){
if(A <= Math.abs(prev[0]-next[0])+Math.abs(prev[1]-next[1])){
flg = true;
}
}
if(bitCount >= 1){
if(B <= Math.abs(prev[2]-next[2])){
flg = true;
}
}
if(bitCount >= 2){
if(A <= Math.abs(prev[0]-next[0])+Math.abs(prev[1]-next[1])+Math.abs(prev2[0]-next[0])+Math.abs(prev2[1]-next[1])){
flg = true;
}
}
if(flg){
ok[i | (1 << k)][k][j] = true;
ans = Math.max(ans,Integer.bitCount(i|(1 << k)));
}
}
}
}
}
pw.println(ans);
}
static class GeekInteger {
public static void save_sort(int[] array) {
shuffle(array);
Arrays.sort(array);
}
public static int[] shuffle(int[] array) {
int n = array.length;
Random random = new Random();
for (int i = 0, j; i < n; i++) {
j = i + random.nextInt(n - i);
int randomElement = array[j];
array[j] = array[i];
array[i] = randomElement;
}
return array;
}
public static void save_sort(long[] array) {
shuffle(array);
Arrays.sort(array);
}
public static long[] shuffle(long[] array) {
int n = array.length;
Random random = new Random();
for (int i = 0, j; i < n; i++) {
j = i + random.nextInt(n - i);
long randomElement = array[j];
array[j] = array[i];
array[i] = randomElement;
}
return array;
}
}
}
/**
* refercence : https://github.com/NASU41/AtCoderLibraryForJava/blob/master/ContestIO/ContestScanner.java
*/
class ContestScanner {
private final java.io.InputStream in;
private final byte[] buffer = new byte[1024];
private int ptr = 0;
private int buflen = 0;
private static final long LONG_MAX_TENTHS = 922337203685477580L;
private static final int LONG_MAX_LAST_DIGIT = 7;
private static final int LONG_MIN_LAST_DIGIT = 8;
public ContestScanner(java.io.InputStream in){
this.in = in;
}
public ContestScanner(java.io.File file) throws java.io.FileNotFoundException {
this(new java.io.BufferedInputStream(new java.io.FileInputStream(file)));
}
public ContestScanner(){
this(System.in);
}
private boolean hasNextByte() {
if (ptr < buflen) {
return true;
}else{
ptr = 0;
try {
buflen = in.read(buffer);
} catch (java.io.IOException e) {
e.printStackTrace();
}
if (buflen <= 0) {
return false;
}
}
return true;
}
private int readByte() {
if (hasNextByte()) return buffer[ptr++]; else return -1;
}
private static boolean isPrintableChar(int c) {
return 33 <= c && c <= 126;
}
public boolean hasNext() {
while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;
return hasNextByte();
}
public String next() {
if (!hasNext()) throw new java.util.NoSuchElementException();
StringBuilder sb = new StringBuilder();
int b = readByte();
while(isPrintableChar(b)) {
sb.appendCodePoint(b);
b = readByte();
}
return sb.toString();
}
public long nextLong() {
if (!hasNext()) throw new java.util.NoSuchElementException();
long n = 0;
boolean minus = false;
int b = readByte();
if (b == '-') {
minus = true;
b = readByte();
}
if (b < '0' || '9' < b) {
throw new NumberFormatException();
}
while (true) {
if ('0' <= b && b <= '9') {
int digit = b - '0';
if (n >= LONG_MAX_TENTHS) {
if (n == LONG_MAX_TENTHS) {
if (minus) {
if (digit <= LONG_MIN_LAST_DIGIT) {
n = -n * 10 - digit;
b = readByte();
if (!isPrintableChar(b)) {
return n;
} else if (b < '0' || '9' < b) {
throw new NumberFormatException(
String.format("%d%s... is not number", n, Character.toString(b))
);
}
}
} else {
if (digit <= LONG_MAX_LAST_DIGIT) {
n = n * 10 + digit;
b = readByte();
if (!isPrintableChar(b)) {
return n;
} else if (b < '0' || '9' < b) {
throw new NumberFormatException(
String.format("%d%s... is not number", n, Character.toString(b))
);
}
}
}
}
throw new ArithmeticException(
String.format("%s%d%d... overflows long.", minus ? "-" : "", n, digit)
);
}
n = n * 10 + digit;
}else if(b == -1 || !isPrintableChar(b)){
return minus ? -n : n;
}else{
throw new NumberFormatException();
}
b = readByte();
}
}
public int nextInt() {
long nl = nextLong();
if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
return (int) nl;
}
public double nextDouble() {
return Double.parseDouble(next());
}
public long[] nextLongArray(int length){
long[] array = new long[length];
for(int i=0; i<length; i++) array[i] = this.nextLong();
return array;
}
public long[] nextLongArray(int length, java.util.function.LongUnaryOperator map){
long[] array = new long[length];
for(int i=0; i<length; i++) array[i] = map.applyAsLong(this.nextLong());
return array;
}
public int[] nextIntArray(int length){
int[] array = new int[length];
for(int i=0; i<length; i++) array[i] = this.nextInt();
return array;
}
public int[] nextIntArray(int length, java.util.function.IntUnaryOperator map){
int[] array = new int[length];
for(int i=0; i<length; i++) array[i] = map.applyAsInt(this.nextInt());
return array;
}
public double[] nextDoubleArray(int length){
double[] array = new double[length];
for(int i=0; i<length; i++) array[i] = this.nextDouble();
return array;
}
public double[] nextDoubleArray(int length, java.util.function.DoubleUnaryOperator map){
double[] array = new double[length];
for(int i=0; i<length; i++) array[i] = map.applyAsDouble(this.nextDouble());
return array;
}
public long[][] nextLongMatrix(int height, int width){
long[][] mat = new long[height][width];
for(int h=0; h<height; h++) for(int w=0; w<width; w++){
mat[h][w] = this.nextLong();
}
return mat;
}
public int[][] nextIntMatrix(int height, int width){
int[][] mat = new int[height][width];
for(int h=0; h<height; h++) for(int w=0; w<width; w++){
mat[h][w] = this.nextInt();
}
return mat;
}
public double[][] nextDoubleMatrix(int height, int width){
double[][] mat = new double[height][width];
for(int h=0; h<height; h++) for(int w=0; w<width; w++){
mat[h][w] = this.nextDouble();
}
return mat;
}
public char[][] nextCharMatrix(int height, int width){
char[][] mat = new char[height][width];
for(int h=0; h<height; h++){
String s = this.next();
for(int w=0; w<width; w++){
mat[h][w] = s.charAt(w);
}
}
return mat;
}
}
class ContestPrinter extends PrintWriter {
public ContestPrinter(PrintStream stream) {
super(stream);
}
public ContestPrinter() {
super(System.out);
}
private static String dtos(double x, int n) {
StringBuilder sb = new StringBuilder();
if (x < 0) {
sb.append('-');
x = -x;
}
x += Math.pow(10, -n) / 2;
sb.append((long) x);
sb.append(".");
x -= (long) x;
for (int i = 0; i < n; i++) {
x *= 10;
sb.append((int) x);
x -= (int) x;
}
return sb.toString();
}
@Override
public void print(float f) {
super.print(dtos(f, 20));
}
@Override
public void println(float f) {
super.println(dtos(f, 20));
}
@Override
public void print(double d) {
super.print(dtos(d, 20));
}
@Override
public void println(double d) {
super.println(dtos(d, 20));
}
public void printlnArray(String[] array) {
for (String i : array)
super.println(i);
}
public void printSpace(Object... o) {
int n = o.length - 1;
for (int i = 0; i < n; i++) {
super.print(o[i]);
super.print(" ");
}
super.println(o[n]);
}
public void println(Object... o) {
int n = o.length - 1;
for (int i = 0; i < n; i++)
super.print(o[i]);
super.println(o[n]);
}
public void printYN(boolean o) {
super.println(o ? "Yes" : "No");
}
public void print(Object... o) {
int n = o.length - 1;
for (int i = 0; i < n; i++)
super.print(o[i]);
super.print(o[n]);
}
public void printArray(Object[] array) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(" ");
}
super.println(array[n]);
}
public void printlnArray(Object[] array) {
for (Object i : array)
super.println(i);
}
public void printArray(int[] array, String separator) {
int n = array.length - 1;
if (n == -1)
return;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printArray(int[] array) {
this.printArray(array, " ");
}
public void printArray(Integer[] array) {
this.printArray(array, " ");
}
public void printArray(Integer[] array, String separator) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printlnArray(int[] array) {
for (int i : array)
super.println(i);
}
public void printArray(int[] array, String separator, java.util.function.IntUnaryOperator map) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(map.applyAsInt(array[i]));
super.print(separator);
}
super.println(map.applyAsInt(array[n]));
}
public void printlnArray(int[] array, java.util.function.IntUnaryOperator map) {
for (int i : array)
super.println(map.applyAsInt(i));
}
public void printlnArray(long[] array, java.util.function.LongUnaryOperator map) {
for (long i : array)
super.println(map.applyAsLong(i));
}
public void printArray(int[] array, java.util.function.IntUnaryOperator map) {
this.printArray(array, " ", map);
}
public void printArray(long[] array, String separator) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printArray(long[] array) {
this.printArray(array, " ");
}
public void printlnArray(long[] array) {
for (long i : array)
super.println(i);
}
public void printArray(double[] array) {
printArray(array, " ");
}
public void printArray(double[] array, String separator) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(array[i]);
super.print(separator);
}
super.println(array[n]);
}
public void printlnArray(double[] array) {
for (double i : array)
super.println(i);
}
public void printArray(boolean[] array, String a, String b) {
int n = array.length - 1;
for (int i = 0; i < n; i++)
super.print((array[i] ? a : b) + " ");
super.println(array[n] ? a : b);
}
public void printArray(boolean[] array) {
this.printArray(array, "Y", "N");
}
public void printArray(char[] array) {
for (char c : array)
this.print(c);
this.println();
}
public void printArray(long[] array, String separator, java.util.function.LongUnaryOperator map) {
int n = array.length - 1;
for (int i = 0; i < n; i++) {
super.print(map.applyAsLong(array[i]));
super.print(separator);
}
super.println(map.applyAsLong(array[n]));
}
public void printArray(long[] array, java.util.function.LongUnaryOperator map) {
this.printArray(array, " ", map);
}
public void printArray(ArrayList<?> array) {
this.printArray(array, " ");
}
public void printArray(ArrayList<?> array, String separator) {
int n = array.size() - 1;
if (n == -1)
return;
for (int i = 0; i < n; i++) {
super.print(array.get(i).toString());
super.print(separator);
}
super.println(array.get(n).toString());
}
public void printlnArray(ArrayList<?> array) {
int n = array.size();
for (int i = 0; i < n; i++)
super.println(array.get(i).toString());
}
public void printlnArray(ArrayList<Integer> array, java.util.function.IntUnaryOperator map) {
int n = array.size();
for (int i = 0; i < n; i++)
super.println(map.applyAsInt(array.get(i)));
}
public void printlnArray(ArrayList<Long> array, java.util.function.LongUnaryOperator map) {
int n = array.size();
for (int i = 0; i < n; i++)
super.println(map.applyAsLong(array.get(i)));
}
public void printArray(int[][] array) {
for (int[] a : array)
this.printArray(a);
}
public void printArray(int[][] array, java.util.function.IntUnaryOperator map) {
for (int[] a : array)
this.printArray(a, map);
}
public void printArray(long[][] array) {
int n = array.length;
if (n == 0)
return;
int m = array[0].length - 1;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++)
super.print(array[i][j] + " ");
super.println(array[i][m]);
}
}
public void printArray(long[][] array, java.util.function.LongUnaryOperator map) {
int n = array.length;
if (n == 0)
return;
int m = array[0].length - 1;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
super.print(map.applyAsLong(array[i][j]));
super.print(" ");
}
super.println(map.applyAsLong(array[i][m]));
}
}
public void printArray(boolean[][] array) {
int n = array.length;
if (n == 0)
return;
int m = array[0].length - 1;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++)
super.print(array[i][j] ? "○ " : "× ");
super.println(array[i][m] ? "○" : "×");
}
}
public void printArray(char[][] array) {
int n = array.length;
if (n == 0)
return;
int m = array[0].length;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++)
super.print(array[i][j]);
super.println();
}
}
}