結果
| 問題 |
No.190 Dry Wet Moist
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2016-06-07 21:35:40 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 493 ms / 2,000 ms |
| コード長 | 2,942 bytes |
| コンパイル時間 | 4,546 ms |
| コンパイル使用メモリ | 79,668 KB |
| 実行使用メモリ | 58,516 KB |
| 最終ジャッジ日時 | 2024-10-08 18:13:11 |
| 合計ジャッジ時間 | 13,760 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 28 |
ソースコード
import java.io.*;
import java.util.*;
public class Main_yukicoder190 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
Printer pr = new Printer(System.out);
int n = sc.nextInt();
int[] a = new int[2 * n];
for (int i = 0; i < 2 * n; i++) {
a[i] = sc.nextInt();
}
Arrays.sort(a);
int z = lower_bound(a, -1, 2 * n, 0);
int p = upper_bound(a, -1, 2 * n, 0);
int wet = 0;
int pcnt = 0;
for (int i = p, j = p - 1; i < 2 * n; i++) {
if (j < 0 || a[j] + a[i] <= 0) {
pcnt++;
} else {
wet++;
j--;
}
}
wet += pcnt / 2;
int dry = 0;
int mcnt = 0;
for (int i = z - 1, j = z; i >= 0; i--) {
if (j >= 2 * n || a[j] + a[i] >= 0) {
mcnt++;
} else {
dry++;
j++;
}
}
dry += mcnt / 2;
int moist = 0;
for (int i = p, j = z - 1; i < 2 * n && j >= 0; ) {
if (a[j] + a[i] == 0) {
moist++;
i++;
j--;
} else if (a[j] + a[i] > 0) {
j--;
} else {
i++;
}
}
moist += (p - z) / 2;
pr.printf("%d %d %d\n", dry, wet, moist);
pr.close();
sc.close();
}
private static int lower_bound(int[] data, int l, int r, int value) {
while (r - l > 1) {
int mid = l + (r - l) / 2;
if (data[mid] >= value) {
// if (data[mid] > value) {
r = mid;
} else {
l = mid;
}
}
return r;
// return l + 1;
}
private static int upper_bound(int[] data, int l, int r, int value) {
while (r - l > 1) {
int mid = l + (r - l) / 2;
// if (data[mid] >= value) {
if (data[mid] > value) {
r = mid;
} else {
l = mid;
}
}
return r;
// return l + 1;
}
@SuppressWarnings("unused")
private static class Scanner {
BufferedReader br;
Iterator<String> it;
Scanner (InputStream in) {
br = new BufferedReader(new InputStreamReader(in));
}
String next() throws RuntimeException {
try {
if (it == null || !it.hasNext()) {
it = Arrays.asList(br.readLine().split(" ")).iterator();
}
return it.next();
} catch (IOException e) {
throw new IllegalStateException();
}
}
int nextInt() throws RuntimeException {
return Integer.parseInt(next());
}
long nextLong() throws RuntimeException {
return Long.parseLong(next());
}
float nextFloat() throws RuntimeException {
return Float.parseFloat(next());
}
double nextDouble() throws RuntimeException {
return Double.parseDouble(next());
}
void close() {
try {
br.close();
} catch (IOException e) {
// throw new IllegalStateException();
}
}
}
private static class Printer extends PrintWriter {
Printer(PrintStream out) {
super(out);
}
}
}