結果
| 問題 | No.1058 素敵な数 |
| ユーザー |
 Oland
|
| 提出日時 | 2020-05-26 17:42:24 |
| 言語 | Java21 (openjdk 21) |
| 結果 |
AC
|
| 実行時間 | 70 ms / 2,000 ms |
| コード長 | 7,368 bytes |
| コンパイル時間 | 2,416 ms |
| コンパイル使用メモリ | 80,472 KB |
| 実行使用メモリ | 50,644 KB |
| 最終ジャッジ日時 | 2024-10-13 02:47:55 |
| 合計ジャッジ時間 | 3,833 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
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テストケース
テストケース表示| 入力 | 結果 | 実行時間 実行使用メモリ |
|---|---|---|
| testcase_00 | AC | 61 ms
50,460 KB |
| testcase_01 | AC | 61 ms
50,232 KB |
| testcase_02 | AC | 63 ms
50,436 KB |
| testcase_03 | AC | 60 ms
50,592 KB |
| testcase_04 | AC | 70 ms
50,532 KB |
| testcase_05 | AC | 61 ms
50,496 KB |
| testcase_06 | AC | 59 ms
50,552 KB |
| testcase_07 | AC | 60 ms
50,624 KB |
| testcase_08 | AC | 58 ms
50,644 KB |
| testcase_09 | AC | 60 ms
50,228 KB |
ソースコード
import java.io.*;
import java.util.*;
@SuppressWarnings("unused")
public class Main {
FastScanner in;
PrintWriter out;
final static int MOD = (int)1e9+7;
void solve(){
int MAX = 101000;
boolean[] isPrime = isPrime(MAX);
ArrayList<Long> p = new ArrayList<>();
for(int i = 100001; i <= MAX; i++){
if(isPrime[i]){
p.add((long)i);
if(p.size() >= 10) break;
}
}
ArrayList<Long> list = new ArrayList<>();
list.add(1L);
for(int i = 0; i < p.size(); i++){
for(int j = i; j < p.size(); j++){
list.add(p.get(i) * p.get(j));
}
}
Collections.sort(list);
out.println(list.get(in.nextInt()-1));
}
boolean[] isPrime(int n){
boolean[] isPrime = new boolean[n+1];
Arrays.fill(isPrime, true);
if(n >= 0) isPrime[0] = false;
if(n >= 1) isPrime[1] = false;
for(int i = 2; i <= n; i++){
if(!isPrime[i]) continue;
for(int j = i + i; j <= n; j += i) isPrime[j] = false;
}
return isPrime;
}
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;
}
}
}