結果

問題 No.496 ワープクリスタル (給料日前編)
ユーザー hiromi_ayasehiromi_ayase
提出日時 2017-03-24 22:41:47
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 4,343 bytes
コンパイル時間 2,614 ms
コンパイル使用メモリ 80,928 KB
実行使用メモリ 41,204 KB
最終ジャッジ日時 2024-07-05 22:06:07
合計ジャッジ時間 5,426 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge2
このコードへのチャレンジ
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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 55 ms
36,948 KB
testcase_01 AC 55 ms
36,836 KB
testcase_02 AC 54 ms
36,668 KB
testcase_03 AC 55 ms
37,036 KB
testcase_04 WA -
testcase_05 AC 56 ms
37,032 KB
testcase_06 AC 87 ms
38,400 KB
testcase_07 AC 56 ms
36,812 KB
testcase_08 AC 109 ms
39,840 KB
testcase_09 AC 137 ms
41,204 KB
testcase_10 AC 58 ms
37,004 KB
testcase_11 AC 57 ms
37,060 KB
testcase_12 AC 63 ms
37,504 KB
testcase_13 AC 82 ms
38,172 KB
testcase_14 AC 96 ms
39,172 KB
testcase_15 WA -
testcase_16 WA -
testcase_17 WA -
testcase_18 AC 90 ms
38,856 KB
testcase_19 WA -
testcase_20 AC 94 ms
38,608 KB
testcase_21 AC 63 ms
36,944 KB
testcase_22 WA -
testcase_23 AC 112 ms
39,132 KB
testcase_24 AC 108 ms
39,744 KB
testcase_25 AC 108 ms
39,740 KB
testcase_26 AC 114 ms
39,220 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;
import java.util.PriorityQueue;


public class Main {
  public static void main(String[] args) {
    FastScanner sc = new FastScanner();
    int gx = sc.nextInt();
    int gy = sc.nextInt();
    int N = sc.nextInt();
    int F = sc.nextInt();
    
    int[][] w = new int[N + 2][3];
    for (int i = 0; i < N; i ++) {
      w[i][0] = sc.nextInt();
      w[i][1] = sc.nextInt();
      w[i][2] = sc.nextInt();
    }
    w[N] = new int[]{1, 0, F};
    w[N + 1] = new int[]{0, 1, F};
    
    System.out.println(dijkstra(gx, gy, w));
    
  }

  public static long dijkstra(int gx, int gy, int[][] w) {

    long[][] distance = new long[gx + 1][gy + 1];
    boolean[][] visited = new boolean[gx + 1][gy + 1];

    for (int i = 0; i <= gx; i++) {
      for (int j = 0; j <= gy; j++) {
        distance[i][j] = Integer.MAX_VALUE / 3;
      }
    }

    PriorityQueue<int[]> queue = new PriorityQueue<>((a, b) -> {
      if (distance[a[0]][a[1]] == distance[b[0]][b[1]]) {
        return a[0] * 1000 + a[1] - b[0] * 1000 + b[1];
      } else {
        return Long.compare(distance[a[0]][a[1]], distance[b[0]][b[1]]);
      }
    });
    distance[0][0] = 0;
    queue.add(new int[]{0, 0});

    
    while (queue.size() > 0) {
        int[] elem = queue.poll();
        int x = elem[0];
        int y = elem[1];
        long len = distance[x][y];
        visited[x][y] = true;

        for (int[] v : w) {
          int nx = x + v[0];
          int ny = y + v[1];
            if (nx <= gx && ny <= gy && !visited[nx][ny]) {
                long newCost = len + v[2];
                if (newCost < distance[nx][ny]) {
                    queue.add(new int[]{nx, ny});
                    distance[nx][ny] = newCost;
                }
            }
        }
    }
    return distance[gx][gy];
  }
}


class FastScanner {
	public static String debug = null;

	private final InputStream in = System.in;
	private int ptr = 0;
	private int buflen = 0;
	private byte[] buffer = new byte[1024];
	private boolean eos = false;

	private boolean hasNextByte() {
		if (ptr < buflen) {
			return true;
		} else {
			ptr = 0;
			try {
				if (debug != null) {
					buflen = debug.length();
					buffer = debug.getBytes();
					debug = "";
					eos = true;
				} else {
					buflen = in.read(buffer);
				}
			} catch (IOException e) {
				e.printStackTrace();
			}
			if (buflen < 0) {
				eos = true;
				return false;
			} else if (buflen == 0) {
				return false;
			}
		}
		return true;
	}

	private int readByte() {
		if (hasNextByte())
			return buffer[ptr++];
		else
			return -1;
	}

	private static boolean isPrintableChar(int c) {
		return 33 <= c && c <= 126;
	}

	private void skipUnprintable() {
		while (hasNextByte() && !isPrintableChar(buffer[ptr]))
			ptr++;
	}

	public boolean isEOS() {
		return this.eos;
	}

	public boolean hasNext() {
		skipUnprintable();
		return hasNextByte();
	}

	public String next() {
		if (!hasNext())
			throw new NoSuchElementException();
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while (isPrintableChar(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}

	public long nextLong() {
		if (!hasNext())
			throw new NoSuchElementException();
		long n = 0;
		boolean minus = false;
		int b = readByte();
		if (b == '-') {
			minus = true;
			b = readByte();
		}
		if (b < '0' || '9' < b) {
			throw new NumberFormatException();
		}
		while (true) {
			if ('0' <= b && b <= '9') {
				n *= 10;
				n += b - '0';
			} else if (b == -1 || !isPrintableChar(b)) {
				return minus ? -n : n;
			} else {
				throw new NumberFormatException();
			}
			b = readByte();
		}
	}

	public int nextInt() {
		return (int) nextLong();
	}

	public long[] nextLongList(int n) {
		return nextLongTable(1, n)[0];
	}

	public int[] nextIntList(int n) {
		return nextIntTable(1, n)[0];
	}

	public long[][] nextLongTable(int n, int m) {
		long[][] ret = new long[n][m];
		for (int i = 0; i < n; i ++) {
			for (int j = 0; j < m; j ++) {
				ret[i][j] = nextLong();
			}
		}
		return ret;
	}

	public int[][] nextIntTable(int n, int m) {
		int[][] ret = new int[n][m];
		for (int i = 0; i < n; i ++) {
			for (int j = 0; j < m; j ++) {
				ret[i][j] = nextInt();
			}
		}
		return ret;
	}
}
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