結果
| 問題 |
No.1166 NADA DNA
|
| ユーザー |
tenten
|
| 提出日時 | 2023-06-21 11:26:51 |
| 言語 | Java (openjdk 23) |
| 結果 |
AC
|
| 実行時間 | 441 ms / 3,000 ms |
| コード長 | 3,593 bytes |
| コンパイル時間 | 2,662 ms |
| コンパイル使用メモリ | 87,812 KB |
| 実行使用メモリ | 63,540 KB |
| 最終ジャッジ日時 | 2024-06-28 21:04:23 |
| 合計ジャッジ時間 | 11,085 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 * 2 |
| other | AC * 20 |
ソースコード
import java.io.*;
import java.util.*;
import java.util.stream.*;
public class Main {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner();
int n = sc.nextInt();
int length = sc.nextInt();
char[][] inputs = new char[n][];
for (int i = 0; i < n; i++) {
inputs[i] = sc.next().toCharArray();
}
ArrayList<Bridge> bridges = new ArrayList<>();
for (int i = 0; i < n; i++) {
for (int j = i + 1; j < n; j++) {
int count = 0;
for (int k = 0; k < length; k++) {
if (inputs[i][k] != inputs[j][k]) {
count++;
}
}
bridges.add(new Bridge(i, j, count));
}
}
Collections.sort(bridges);
long ans = 0;
UnionFindTree uft = new UnionFindTree(n);
for (Bridge x : bridges) {
if (!uft.same(x)) {
uft.unite(x);
ans += x.value;
}
}
System.out.println(ans);
}
static class Bridge implements Comparable<Bridge> {
int left;
int right;
int value;
public Bridge(int left, int right, int value) {
this.left = left;
this.right = right;
this.value = value;
}
public int compareTo(Bridge another) {
return value - another.value;
}
}
static class UnionFindTree {
int[] parents;
public UnionFindTree(int size) {
parents = new int[size];
for (int i = 0; i < size; i++) {
parents[i] = i;
}
}
public int find(int x) {
if (x == parents[x]) {
return x;
} else {
return parents[x] = find(parents[x]);
}
}
public boolean same(int x, int y) {
return find(x) == find(y);
}
public boolean same(Bridge x) {
return same(x.left, x.right);
}
public void unite(int x, int y) {
parents[find(x)] = find(y);
}
public void unite(Bridge x) {
unite(x.left, x.right);
}
}
}
class Utilities {
static String arrayToLineString(Object[] arr) {
return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
}
static String arrayToLineString(int[] arr) {
return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
}
}
class Scanner {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st = new StringTokenizer("");
StringBuilder sb = new StringBuilder();
public Scanner() throws Exception {
}
public int nextInt() throws Exception {
return Integer.parseInt(next());
}
public long nextLong() throws Exception {
return Long.parseLong(next());
}
public double nextDouble() throws Exception {
return Double.parseDouble(next());
}
public int[] nextIntArray() throws Exception {
return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
}
public String next() throws Exception {
while (!st.hasMoreTokens()) {
st = new StringTokenizer(br.readLine());
}
return st.nextToken();
}
}
tenten