fork(3) download 
  1. /* paiza POH! vol.2
  2.  * result:
  3.  * http://p...content-available-to-author-only...a.jp/poh/paizen/result/4873b83843353ec38dd4283391488ae2
  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.  
  21. 	int[][] table = null;
  22. 	int[][] cache = null;
  23.  
  24. 	@Override
  25. 	public void setHome(Paiza.Home home) {
  26. 		super.setHome(home);
  27.  
  28. 		table = new int[home.getH() + 1][home.getW() + 1];
  29. 		cache = new int[home.getH() + 1][home.getW() + 1];
  30.  
  31. 		int[][] space2right = new int[home.getH()][home.getW()];
  32.  
  33. 		for (int y = 0; y < home.getH(); y++) {
  34. 			int count = 0;
  35. 			for (int x = home.getW() - 1; x >= 0; x--) {
  36. 				if (home.isSpace(x, y)) {
  37. 					count++;
  38. 				} else {
  39.  
  40. 					count = 0;
  41. 				}
  42. 				space2right[y][x] = count;
  43. 			}
  44. 		}
  45.  
  46. 		for (int y = 0; y < home.getH(); y++) {
  47. 			for (int x = 0; x < home.getW(); x++) {
  48. 				if (space2right[y][x] == 0) {
  49. 					continue;
  50. 				}
  51. 				int min = space2right[y][x];
  52. 				int d = 1;
  53. 				for (int ty = y; ty < home.getH() && space2right[ty][x] > 0; ty++) {
  54. 					if (space2right[ty][x] < min) {
  55. 						min = space2right[ty][x];
  56. 					}
  57. 					table[d][min]++;
  58. 					d++;
  59. 				}
  60. 			}
  61. 		}
  62.  
  63. 	} // setHome()
  64.  
  65. 	@Override
  66. 	public int resolve(Paiza.Widget widget) {
  67. 		int s = widget.getS();
  68. 		int t = widget.getT();
  69. 		if (s > home.getH() || t > home.getW()) {
  70. 			return 0;
  71. 		}
  72. 		if (cache[s][t] > 0) {
  73. 			return cache[s][t] - 1;
  74. 		}
  75. 		int count = 0;
  76. 		for (int i = t; i <= home.getW(); i++) {
  77. 			count += table[s][i];
  78. 		}
  79. 		cache[s][t] = count + 1;
  80. 		return count;
  81. 	} // resolve()
  82.  
  83. }
  84.  
  85. final class Paiza
  86. {
  87. 	public static abstract class Resolver
  88. 	{
  89. 		protected Paiza.Home home;
  90.  
  91. 		public void setHome(Paiza.Home home) {
  92. 			this.home = home;
  93. 		}
  94.  
  95. 		public abstract int resolve(Paiza.Widget widget);
  96. 	}
  97.  
  98. 	public static Paiza getInstance() throws java.lang.Exception {
  99. 		if (paiza == null) {
  100. 			paiza = new Paiza();
  101. 		}
  102. 		return paiza;
  103. 	}	
  104.  
  105. 	public void resolve(Resolver resolver) {
  106. 		init(resolver);
  107. 		for (Widget widget : widgets) {
  108. 			answer(resolver.resolve(widget));
  109. 		}
  110. 		flush();
  111. 	}
  112.  
  113.  
  114. 	public final class Home
  115. 	{
  116. 		private final int H;
  117. 		private final int W;
  118. 		private int[][] display;
  119. 		private Home(int H, int W) {
  120. 			this.H = H;
  121. 			this.W = W;
  122. 			display = new int[H][W];
  123. 		}
  124.  
  125. 		private void setDisplay(int x, int y, int e) throws java.lang.Exception {
  126. 			if (x < 0 || x >= W) {
  127. 				throw new ArrayIndexOutOfBoundsException("x : " + x);
  128. 			}
  129. 			if (y < 0 || y >= H) {
  130. 				throw new ArrayIndexOutOfBoundsException("y : " + y);
  131. 			}
  132. 			if (e != 0 && e != 1) {
  133. 				throw new IllegalArgumentException("e");
  134. 			}
  135. 			display[y][x] = e;
  136. 		}
  137.  
  138. 		public int getH() {
  139. 			return H;
  140. 		}
  141.  
  142. 		public int getW() {
  143. 			return W;
  144. 		}
  145.  
  146. 		public boolean isSpace(int x, int y) {
  147. 			if (x < 0 || y < 0 || x >= W || y >= H) {
  148. 				return false;
  149. 			}
  150. 			return display[y][x] == 0;
  151. 		}
  152. 	}
  153.  
  154. 	public final class Widget
  155. 	{
  156. 		private final int s;
  157. 		private final int t;
  158. 		private Widget(int s, int t) {
  159. 			this.s = s;
  160. 			this.t = t;
  161. 		}
  162.  
  163. 		public int getS() {
  164. 			return s;
  165. 		}
  166.  
  167. 		public int getT() {
  168. 			return t;
  169. 		}
  170. 	}
  171.  
  172. 	private static Paiza paiza = null;
  173.  
  174. 	private Home home;
  175. 	private ArrayList<Widget> widgets;
  176.  
  177. 	private Paiza() throws java.lang.Exception {
  178. 		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
  179. 		String[] hw = in.readLine().split(" ");
  180. 		home = new Home(Integer.parseInt(hw[0]), Integer.parseInt(hw[1]));
  181. 		for (int y = 0; y < home.getH(); y++) {
  182. 			String line = in.readLine();
  183. 			for (int x = 0; x < home.getW(); x++) {
  184. 				home.setDisplay(x, y, (int)(line.charAt(x) - '0'));
  185. 			}
  186. 		}
  187. 		int N = Integer.parseInt(in.readLine());
  188. 		widgets = new ArrayList<Widget>(N);
  189. 		for (int i = 0; i< N; i++) {
  190. 			String[] st = in.readLine().split(" ");
  191. 			widgets.add(new Widget(Integer.parseInt(st[0]), Integer.parseInt(st[1])));
  192. 		}
  193. 	}
  194.  
  195. 	private StringBuilder output = null;
  196. 	private static final String NEWLINE = System.getProperty("line.separator");
  197.  
  198. 	private void init(Resolver resolver) {
  199. 		resolver.setHome(home);
  200. 		output = new StringBuilder(widgets.size() * 6);
  201. 	}
  202.  
  203. 	private void answer(int count) {
  204. 		output.append(count);
  205. 		output.append(NEWLINE);
  206. 	}
  207.  
  208. 	private void flush() {
  209. 		System.out.print(output);
  210. 	}
  211. }
  212.  
Success #stdin #stdout 0.08s 380224KB
comments (?)
stdin 
5 5
00000
00100
00010
10001
10000
3
2 2
1 1
3 2
stdout 
6
20
2
https://ideone.com/sUzP3R
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!