蓝桥杯——字母阵列(2018JavaC组第3题)

字母阵列(18JavaC3)

标题：字母阵列

仔细寻找，会发现：在下面的8x8的方阵中，隐藏着字母序列："LANQIAO"。

SLANQIAO

ZOEXCCGB

MOAYWKHI

BCCIPLJQ

SLANQIAO

RSFWFNYA

XIFZVWAL

COAIQNAL

我们约定: 序列可以水平，垂直，或者是斜向；

并且走向不限（实际上就是有一共8种方向）。

上图中一共有4个满足要求的串。

下面有一个更大的（100x100）的字母方阵。

你能算出其中隐藏了多少个“LANQIAO”吗？

FOAIQNALWIKEGNICJWAOSXDHTHZPOLGYELORAUHOHCZIERPTOOJUITQJCFNIYYQHSBEABBQZPNGYQTCLSKZFCYWDGOAIADKLSNGJ

GSOZTQKCCSDWGUWAUOZKNILGVNLMCLXQVBJENIHIVLRPVVXXFTHQUXUAVZZOFFJHYLMGTLANQIAOQQILCDCJERJASNCTLYGRMHGF

TSDFYTLVIBHKLJVVJUDMKGJZGNNSTPVLCKTOFMUEUFSVQIAUVHNVFTGBDDARPKYNNCUOYUAZXQJNOEEYKLFRMOEMHUKJTPETHLES

FKVINSLWEVGAGMKVFVIUBMYOIAFHLVNKNTYKTZWVXQWRWIGPENFXYDTKRVPKRTHMGHVYOCLDCKMEKRLGEKBYUCLOLYPAKPFSOREH

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XWMYRTAFGFOCNHLBGNGOXPJSTWLZUNNAGIRETGXFWAQSSJPFTQAXMTQWMZWYVEPQERKSWTSCHSQOOBGXAQTBCHOEGBDVKGWJIFTG

ZWWJEIISPLMXIMGHOOGDRZFTGNDDWDWMNUFWJYJGULPHNUFSAQNNIUVAAFZIAZKFXXNWCEABGJAUMGYEIEFVQXVHHHEDYUITRCQB

XZHDPZQTOBECJVBZLACVXACZEDYOGVAVQRNWEOWGRAQYUEUESTEDQTYJUTEFOOITSHDDZHONJGBRCWNEQLZUTBNQIADKNFIOMWZR

EBFKCVNLURZSNPOLTISRPDTNUMCDGKTYRGIOVEPTUTSBAWQKWWEUWIWHAANUZUADGZEATZOQICWFUJTWNZDBKLQNELWVTBNDLNFH

PESISEATZNCDFRMXBQUKBFTIGYSFCWVHPMSUSDKPSCOMVLDOHYQVFHAJKRDTAVLIMNZBZSMLMRTLRPSLAHXDBASDMWAAYBPYVJZF

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请提交一个整数，不要填写任何多余的内容。

参考答案：

41

参考代码：

package bb;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.Arrays;
public class JC18_3字母阵列 {
	static char[][] arr2D = new char[100][100];
	static int count = 0;
	public static void main(String[] args) throws IOException {
		// 读入文件
		FileReader fr = new FileReader("JavaC3.txt");
		BufferedReader br = new BufferedReader(fr);
		String sLine;
		int lineNo = 0;
		while ((sLine = br.readLine()) != null) {
			arr2D[lineNo] = sLine.toCharArray();
			lineNo++;
		}
		br.close();
		fr.close();
		// 打印二维数组
		for (int i = 0; i < arr2D.length; i++) {
			System.out.println(Arrays.toString(arr2D[i]));
		}
		// 匹配
		for (int i = 0; i < 100; i++) {
			for (int j = 0; j < 100; j++) {
				if (arr2D[i][j] == 'L') {
					fun(i, j);
				}
			}
		}
		System.out.println(count);
	}
	static void fun(int x, int y) {
		boolean state;
		String str = "LANQIAO";
		int a, b, index;
		// 向上
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x >= 6) {
			while (state && index < 7) {
				a--;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "向上");
				count++;
			}
		}
		// 向下
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x <= 93) {
			while (state && index < 7) {
				a++;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "向下");
				count++;
			}
		}
		// 向左
		state = true;
		a = x;
		b = y;
		index = 1;
		if (y >= 6) {
			while (state && index < 7) {
				b--;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "向左");
				count++;
			}
		}
		// 向右
		state = true;
		a = x;
		b = y;
		index = 1;
		if (y <= 93) {
			while (state && index < 7) {
				b++;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "向右");
				count++;
			}
		}
		// 左上
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x >= 6 && y >= 6) {
			while (state && index < 7) {
				a--;
				b--;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "左上");
				count++;
			}
		}
		// 右上
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x >= 6 && y <= 93) {
			while (state && index < 7) {
				a--;
				b++;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "右上");
				count++;
			}
		}
		// 左下
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x <= 93 && y >= 6) {
			while (state && index < 7) {
				a++;
				b--;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "左下");
				count++;
			}
		}
		// 右下
		state = true;
		a = x;
		b = y;
		index = 1;
		if (x <= 93 && y <= 93) {
			while (state && index < 7) {
				a++;
				b++;
				if (arr2D[a][b] == str.charAt(index)) {
					index++;
				} else {
					state = false;
				}
			}
			if (index == 7) {
				System.out.println(x + "  " + y + "右下");
				count++;
			}
		}
	}
}