結果
| 問題 |
No.3204 Permuted Integer
|
| コンテスト | |
| ユーザー |
tenten
|
| 提出日時 | 2025-08-07 14:03:45 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,589 bytes |
| コンパイル時間 | 2,940 ms |
| コンパイル使用メモリ | 82,000 KB |
| 実行使用メモリ | 49,372 KB |
| 最終ジャッジ日時 | 2025-08-07 14:03:56 |
| 合計ジャッジ時間 | 10,885 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 11 WA * 15 |
ソースコード
import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;
import java.math.*;
public class Main {
static final int MAX = 1000000000;
public static void main(String[] args) throws Exception {
FastScanner sc = new FastScanner();
int t = sc.nextInt();
Map<Integer, Integer> exists = new HashMap<>();
for (int i = 0; i * i <= MAX; i++) {
int f = function(i * i);
if (!exists.containsKey(f)) {
exists.put(f, i * i);
}
}
StringBuilder sb = new StringBuilder();
while (t-- > 0) {
int f = function(sc.nextInt());
sb.append(exists.getOrDefault(f, -1)).append("\n");
}
System.out.print(sb);
}
static int function(int x) {
char[] arr = String.valueOf(x).toCharArray();
Arrays.sort(arr);
int ans = 0;
for (char c : arr) {
ans *= 10;
ans += c - '0';
}
return ans;
}
}
class FastScanner {
private DataInputStream din;
private byte[] buffer;
private int bufferPointer, bytesRead;
private static final int BUFFER_SIZE = 1 << 16; // 65,536 バイト
public FastScanner() {
din = new DataInputStream(System.in);
buffer = new byte[BUFFER_SIZE];
bufferPointer = bytesRead = 0;
}
private byte read() {
try {
if (bufferPointer == bytesRead) {
bytesRead = din.read(buffer, 0, BUFFER_SIZE);
if (bytesRead == -1) return -1;
bufferPointer = 0;
}
return buffer[bufferPointer++];
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public String next() {
byte b = read();
// 空白文字を読み飛ばす
while (isSpaceChar(b)) {
b = read();
}
StringBuilder sb = new StringBuilder();
while (!isSpaceChar(b)) {
sb.append((char) b);
b = read();
}
return sb.toString();
}
public int nextInt() {
int ret = 0;
byte c = read();
while (isSpaceChar(c)) c = read();
boolean neg = (c == '-');
if (neg) c = read();
do {
ret = ret * 10 + c - '0';
c = read();
} while (!isSpaceChar(c));
return neg ? -ret : ret;
}
public long nextLong() {
long ret = 0;
byte c = read();
while (isSpaceChar(c)) c = read();
boolean neg = (c == '-');
if (neg) c = read();
do {
ret = ret * 10L + c - '0';
c = read();
} while (!isSpaceChar(c));
return neg ? -ret : ret;
}
public double nextDouble() {
double ret = 0, div = 1;
byte c = read();
while (isSpaceChar(c)) c = read();
boolean neg = (c == '-');
if (neg) c = read();
do {
ret = ret * 10 + c - '0';
c = read();
} while (!isSpaceChar(c) && c != '.');
if (c == '.') {
while (!isSpaceChar(c = read())) {
ret += (c - '0') / (div *= 10);
}
}
return neg ? -ret : ret;
}
private boolean isSpaceChar(byte c) {
return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
}
public void close() {
try {
if (din != null) din.close();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
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