結果
| 問題 | 
                            No.2328 Build Walls
                             | 
                    
| コンテスト | |
| ユーザー | 
                             tenten
                         | 
                    
| 提出日時 | 2023-05-30 14:52:04 | 
| 言語 | Java  (openjdk 23)  | 
                    
| 結果 | 
                             
                                WA
                                 
                             
                            
                         | 
                    
| 実行時間 | - | 
| コード長 | 3,304 bytes | 
| コンパイル時間 | 2,938 ms | 
| コンパイル使用メモリ | 88,880 KB | 
| 実行使用メモリ | 64,960 KB | 
| 最終ジャッジ日時 | 2024-12-28 11:54:34 | 
| 合計ジャッジ時間 | 17,839 ms | 
| 
                            ジャッジサーバーID (参考情報)  | 
                        judge5 / judge1 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 3 | 
| other | AC * 20 WA * 14 | 
ソースコード
import java.io.*;
import java.util.*;
import java.util.stream.*;
public class Main {
    static int MOD;
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int h = sc.nextInt() - 2;
        int w = sc.nextInt();
        int[][] field = new int[h][w];
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                field[i][j] = sc.nextInt();
            }
        }
        PriorityQueue<Path> queue = new PriorityQueue<>();
        for (int i = 0; i < h; i++) {
            queue.add(new Path(i * w, 0));
        }
        int[] costs = new int[h * w];
        Arrays.fill(costs, Integer.MAX_VALUE);
        while (queue.size() > 0) {
            Path p = queue.poll();
            int r = p.idx / w;
            int c = p.idx % w;
            if (field[r][c] < 0) {
                continue;
            }
            p.value += field[r][c];
            if (costs[p.idx] <= p.value) {
                continue;
            }
            costs[p.idx] = p.value;
            if (c >= w - 1) {
                continue;
            }
            if (r > 0) {
                queue.add(new Path(p.idx - w + 1, p.value));
                queue.add(new Path(p.idx - w, p.value));
            }
            queue.add(new Path(p.idx + 1, p.value));
            if (r < h - 1) {
                queue.add(new Path(p.idx + w + 1, p.value));
                queue.add(new Path(p.idx + w, p.value));
            }
        }
        int ans = Integer.MAX_VALUE;
        for (int i = w - 1; i < h * w; i += w) {
            ans = Math.min(ans, costs[i]);
        }
        if (ans == Integer.MAX_VALUE) {
            ans = -1;
        }
        System.out.println(ans);
    }
    
    static class Path implements Comparable<Path> {
        int idx;
        int value;
        
        public Path(int idx, int value) {
            this.idx = idx;
            this.value = value;
        }
        
        public int compareTo(Path another) {
            return value - another.value;
        }
    }
}
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