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  1. /* paiza POH! vol.2
  2.  * result:
  3.  * http://p...content-available-to-author-only...a.jp/poh/paizen/result/ce046155af8aab9226be2954d4ee6d5d
  4.  * author: Leonardone @ NEETSDKASU
  5.  */
  6. import java.util.*;
  7. import java.lang.*;
  8. import java.io.*;
  9.  
  10. class Main
  11. {
  12. 	public static void main (String[] args) throws java.lang.Exception
  13. 	{
  14. 		Paiza.getInstance().resolve(new MyResolver());
  15. 	}
  16. }
  17.  
  18. class MyResolver extends Paiza.Resolver
  19. {
  20. 	int[][][][] table = null;
  21. 	int[][] cache = null;
  22.  
  23. 	void debug(String key, String str) {
  24. //		System.out.println(key + " : " + str);
  25. 	}
  26.  
  27. 	void printArray(int[][] array, String str) {
  28. 		/*
  29. 		System.out.println("----");
  30. 		System.out.println("Array : " + array.length + "x" + array[0].length + " :: " + str);
  31. 		for (int i = 0; i < array.length; i++) {
  32. 			for (int j = 0; j < array[i].length; j++) {
  33. 				System.out.print(array[i][j] + " ");
  34. 			}
  35. 			System.out.println();
  36. 		}
  37. 		System.out.println("----");
  38. 		*/
  39. 	}
  40.  
  41.  
  42. 	@Override
  43. 	public void setHome(Paiza.Home home) {
  44. 		super.setHome(home);
  45.  
  46. 		table = new int[301][301][][];
  47. 		cache = new int[301][301];
  48.  
  49. 		int[][] temp = table[1][1] = new int[home.getH()][home.getW()];
  50. 		int count = 0;
  51.  
  52. 		for (int y = 0; y < home.getH(); y++) {
  53. 			for (int x = 0; x < home.getW(); x++) {
  54. 				if (home.isSpace(x, y)) {
  55. 					count++;
  56. 				} else {
  57. 					temp[y][x] = 1;
  58. 				}
  59. 			}
  60. 		}
  61.  
  62. 		cache[1][1] = count + 1;
  63. 	}
  64.  
  65. 	@Override
  66. 	public int resolve(Paiza.Widget widget) {
  67. 		if (widget.getS() > home.getH() || widget.getT() > home.getW()) {
  68. 			return 0;
  69. 		}
  70. 		if (cache[widget.getS()][widget.getT()] > 0) {
  71. 			return cache[widget.getS()][widget.getT()] - 1;
  72. 		}
  73. 		return tatami(widget);
  74. 	}
  75.  
  76. 	private int tatami(Paiza.Widget widget) {
  77. 		int e = Math.max(widget.getS(), widget.getT());
  78. 		int tx = 1, ty = 1, x, y;
  79. 		int[][] temp1, temp2;
  80.  
  81. 		debug("tatami", widget.getS() + "," + widget.getT());
  82.  
  83. 		for (int i = 1; i <= e; i++) {
  84. 			tx = 0;
  85. 			ty = 0;
  86.  
  87. 			y = widget.getS();
  88. 			x = widget.getT() - i;
  89.  
  90. 			if (x < 1) {
  91. 				y -= - x + 1;
  92. 				x = 1;
  93. 			}
  94.  
  95. 			while (x <= widget.getT() && y > 0) {
  96. 				debug("seek", y + "," + x);
  97. 				if (table[y][x] != null) {
  98. 					tx = x;
  99. 					ty = y;
  100. 					break;
  101. 				}
  102. 				x++;
  103. 				y--;
  104. 			}
  105.  
  106. 			if (tx != 0) {
  107. 				break;
  108. 			}
  109. 		}
  110.  
  111. 		if (tx == 0 || ty == 0) {
  112. 			tx = 1;
  113. 			ty = 1;
  114. 		}
  115.  
  116. 		printArray(table[ty][tx], "tytx: " + ty + "," + tx);
  117.  
  118. 		if (ty != widget.getS()) {
  119. 			temp1 = table[ty][tx];
  120. 			for (y = ty + 1; y <= widget.getS(); y++) {
  121. 				if (table[y][tx] != null) {
  122. 					printArray(table[y][tx], "skip1: " + y + "," + tx);
  123. 					temp1 = table[y][tx];
  124. 					continue;
  125. 				}
  126. 				temp2 = table[y][tx] = new int[temp1.length - 1][temp1[0].length];
  127. 				for (int i = 0; i < temp2.length; i++) {
  128. 					for (int j = 0; j < temp2[0].length; j++) {
  129. 						temp2[i][j] = temp1[i][j] + temp1[i + 1][j];
  130. 					}
  131. 				}
  132. 				printArray(temp2, "make1: " + y + "," + tx);
  133. 				temp1 = temp2;
  134. 			}
  135. 			ty = widget.getS();
  136. 		}
  137.  
  138. 		if (tx != widget.getT()) {
  139. 			temp1 = table[ty][tx];
  140. 			for (x = tx + 1; x <= widget.getT(); x++) {
  141. 				if (table[ty][x] != null) {
  142. 					printArray(table[ty][x], "skip2: " + ty + "," + x);
  143. 					temp1 = table[ty][x];
  144. 					continue;
  145. 				}
  146. 				temp2 = table[ty][x] = new int[temp1.length][temp1[0].length - 1];
  147. 				for (int i = 0; i < temp2.length; i++) {
  148. 					for (int j = 0; j < temp2[0].length; j++) {
  149. 						temp2[i][j] = temp1[i][j] + temp1[i][j + 1];
  150. 					}
  151. 				}
  152. 				printArray(temp2, "make2: " + ty + "," + x);
  153. 				temp1 = temp2;
  154. 			}
  155. 			tx = widget.getT();
  156. 		}
  157.  
  158. 		temp1 = table[ty][tx];
  159. 		int count = 0;
  160. 		for (int i = 0; i < temp1.length; i++) {
  161. 			for (int j = 0; j < temp1[0].length; j++) {
  162. 				if (temp1[i][j] == 0) {
  163. 					count++;
  164. 				}
  165. 			}
  166. 		}
  167. 		cache[ty][tx] = count + 1;
  168. 		return count;
  169. 	}
  170.  
  171. }
  172.  
  173. final class Paiza
  174. {
  175. 	public static abstract class Resolver
  176. 	{
  177. 		protected Paiza.Home home;
  178.  
  179. 		public void setHome(Paiza.Home home) {
  180. 			this.home = home;
  181. 		}
  182.  
  183. 		public abstract int resolve(Paiza.Widget widget);
  184. 	}
  185.  
  186. 	public static Paiza getInstance() throws java.lang.Exception {
  187. 		if (paiza == null) {
  188. 			paiza = new Paiza();
  189. 		}
  190. 		return paiza;
  191. 	}	
  192.  
  193. 	public void resolve(Resolver resolver) {
  194. 		init(resolver);
  195. 		for (Widget widget : widgets) {
  196. 			answer(resolver.resolve(widget));
  197. 		}
  198. 		flush();
  199. 	}
  200.  
  201.  
  202. 	public final class Home
  203. 	{
  204. 		private final int H;
  205. 		private final int W;
  206. 		private int[][] display;
  207. 		private Home(int H, int W) {
  208. 			this.H = H;
  209. 			this.W = W;
  210. 			display = new int[H][W];
  211. 		}
  212.  
  213. 		private void setDisplay(int x, int y, int e) {
  214. 			display[y][x] = e;
  215. 		}
  216.  
  217. 		public int getH() {
  218. 			return H;
  219. 		}
  220.  
  221. 		public int getW() {
  222. 			return W;
  223. 		}
  224.  
  225. 		public boolean isSpace(int x, int y) {
  226. 			return display[y][x] == 0;
  227. 		}
  228. 	}
  229.  
  230. 	public final class Widget
  231. 	{
  232. 		private final int s;
  233. 		private final int t;
  234. 		private Widget(int s, int t) {
  235. 			this.s = s;
  236. 			this.t = t;
  237. 		}
  238.  
  239. 		public int getS() {
  240. 			return s;
  241. 		}
  242.  
  243. 		public int getT() {
  244. 			return t;
  245. 		}
  246. 	}
  247.  
  248. 	private static Paiza paiza = null;
  249.  
  250. 	private Home home;
  251. 	private ArrayList<Widget> widgets;
  252.  
  253. 	private Paiza() throws java.lang.Exception {
  254. 		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  255. 		String[] hw = in.readLine().split(" ");
  256. 		home = new Home(Integer.parseInt(hw[0]), Integer.parseInt(hw[1]));
  257. 		for (int y = 0; y < home.getH(); y++) {
  258. 			String line = in.readLine();
  259. 			for (int x = 0; x < home.getW(); x++) {
  260. 				home.setDisplay(x, y, (int)(line.charAt(x) - '0'));
  261. 			}
  262. 		}
  263. 		int N = Integer.parseInt(in.readLine());
  264. 		widgets = new ArrayList<Widget>(N);
  265. 		for (int i = 0; i< N; i++) {
  266. 			String[] st = in.readLine().split(" ");
  267. 			widgets.add(new Widget(Integer.parseInt(st[0]), Integer.parseInt(st[1])));
  268. 		}
  269. 	}
  270.  
  271. 	private StringBuilder output = null;
  272. 	private static final String NEWLINE = System.getProperty("line.separator");
  273.  
  274. 	private void init(Resolver resolver) {
  275. 		resolver.setHome(home);
  276. 		output = new StringBuilder(widgets.size() * 6);
  277. 	}
  278.  
  279. 	private void answer(int count) {
  280. 		output.append(count);
  281. 		output.append(NEWLINE);
  282. 	}
  283.  
  284. 	private void flush() {
  285. 		System.out.print(output);
  286. 	}
  287. }
  288.  
Success #stdin #stdout 0.07s 381248KB
comments (?)
stdin 
5 5
00000
00100
00010
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7
2 2
1 1
3 2
3 2
2 3
3 1
1 3
stdout 
6
20
2
2
1
6
7
https://ideone.com/PKR7Ha
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
secret

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