2013
11-12

# Black and white painting

You are visiting the Centre Pompidou which contains a lot of modern paintings. In particular you notice one painting which consists solely of black and white squares, arranged in rows and columns like in a chess board (no two adjacent squares have the same colour). By the way, the artist did not use the tool of problem A to create the painting.

Since you are bored, you wonder how many 8 × 8 chess boards are embedded within this painting. The bottom right corner of a chess board must always be white.

The input contains several test cases. Each test case consists of one line with three integers n, m and c. (8 ≤ n, m ≤ 40000), where n is the number of rows of the painting, and m is the number of columns of the painting. c is always 0 or 1, where 0 indicates that the bottom right corner of the painting is black, and 1 indicates that this corner is white.

The last test case is followed by a line containing three zeros.

For each test case, print the number of chess boards embedded within the given painting.

8 8 0
8 8 1
9 9 1
40000 39999 0
0 0 0

0
1
2
799700028

//* @author:
import java.util.Scanner;
import java.util.Arrays;
public class Main{
public static void main(String args[]){
Scanner sc=new Scanner(System.in);
int n,m,c;
while(sc.hasNext()){
n=sc.nextInt();
if(n==0) break;
m=sc.nextInt();
c=sc.nextInt();
int t=(m-7)*(n-7);
int t1=(t+1)/2;
if (c==0) System.out.printf("%d\n",t-t1);
else System.out.printf("%d\n",t1);

}
}

1. 这道题目的核心一句话是：取还是不取。
如果当前取，则index+1作为参数。如果当前不取，则任用index作为参数。

2. 站长好。我是一个准备创业的互联网小白,我们打算做一个有关国*际*游*学的平台。手上也有了一些境外资源。现阶段的团队现在没有cto.原意出让一些管理股寻找一个靠谱的技术专家做合伙人, 不知道是不是能得到您的帮助。发个帖子或者其他方式。期待您的回应。可以加我微信tianxielemon聊聊。