uva_232_ Crossword Answers

Discription

    A crossword puzzle consists of a rectangular grid of black and white squares and two lists of definitions (or descriptions).
    One list of definitions is for ``words" to be written left to right across white squares in the rows and the other list is for words to be written down white squares in the columns. (A word is a sequence of alphabetic characters.)
    To solve a crossword puzzle, one writes the words corresponding to the definitions on the white squares of the grid.
    The definitions correspond to the rectangular grid by means of sequential integers on ``eligible" white squares. White squares with black squares immediately to the left or above them are ``eligible." White squares with no squares either immediately to the left or above are also ``eligible." No other squares are numbered. All of the squares on the first row are numbered.
The numbering starts with 1 and continues consecutively across white squares of the first row, then across the eligible white squares of the second row, then across the eligible white squares of the third row and so on across all of the rest of the rows of the puzzle. The picture below illustrates a rectangular crossword puzzle grid with appropriate numbering.

  

An ``across" word for a definition is written on a sequence of white squares in a row starting on a numbered square that does not follow another white square in the same row.

The sequence of white squares for that word goes across the row of the numbered square, ending immediately before the next black square in the row or in the rightmost square of the row.

A ``down" word for a definition is written on a sequence of white squares in a column starting on a numbered square that does not follow another white square in the same column.

The sequence of white squares for that word goes down the column of the numbered square, ending immediately before the next black square in the column or in the bottom square of the column.

Every white square in a correctly solved puzzle contains a letter.

You must write a program that takes several solved crossword puzzles as input and outputs the lists of across and down words which constitute the solutions.

Input


Each puzzle solution in the input starts with a line containing two integers r and c ( tex2html_wrap_inline39 and tex2html_wrap_inline41 ), where r (the first number) is the number of rows in the puzzle and c (the second number) is the number of columns.
The r rows of input which follow each contain c characters (excluding the end-of-line) which describe the solution. Each of those c characters is an alphabetic character which is part of a word or the character ``*", which indicates a black square.
The end of input is indicated by a line consisting of the single number 0.


Output


Output for each puzzle consists of an identifier for the puzzle (puzzle #1:, puzzle #2:, etc.) and the list of across words followed by the list of down words. Words in each list must be output one-per-line in increasing order of the number of their corresponding definitions.
The heading for the list of across words is ``Across". The heading for the list of down words is ``Down".
In the case where the lists are empty (all squares in the grid are black), the Across and Down headings should still appear.
Separate output for successive input puzzles by a blank line.

总结：

①横着度的时候，一个字符的输出，下标直接跳，不会影响后面的输出；竖着读的时候后，同样用一个一个的输出，但是输出一个就把记录序号的数组的相应位置变零，防止影响下面的输入。

②再输入字符串没有空格的情况下，能用scanf就用scanf，gets吃回车会将其转化为'\0'。

③仔细读题，两个输出样例之间有个空行与每个样例以后有个空行不一样，本题中“Separate output for successive input puzzles by a blank line.”就表示每个样例之间有空行，所以最后程序结束的时候不用输出空行。

代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    int a[15][15],count,count2=1,i,j,r,l,c;
    char ch[15][15];
    while(scanf("%d",&r)&&r!=0)
    {
        count=0;
        memset(a,0,sizeof(a));
        scanf("%d",&c);
        for(i=0;i<r;i++) scanf("%s",ch[i]);
        for(i=0;i<r;i++)
        {
            for(j=0;j<c;j++)
            {
                if(ch[i][j]!='*')
                {
                    if(j==0||ch[i][j-1]=='*'||i==0||ch[i-1][j]=='*')
                    {
                        count++;
                        a[i][j]=count;
                    }
                }
            }
        }
        if(count2!=1) printf("\n");
        printf("puzzle #%d:\nAcross\n",count2);count2++;
        for(i=0;i<r;i++)
        {
           j=0;
           while(j<c)
           {
               if(ch[i][j]=='*')
               {
                   j++;
                   continue;
               }

               printf("%3d.%c",a[i][j],ch[i][j]);

               j++;
               for(;j<c&&ch[i][j]!='*';j++)
                printf("%c",ch[i][j]);
               printf("\n");
           }
        }
        printf("Down\n");
        for(i=0;i<r;i++)
        {
            for(j=0;j<c;j++)
            {
                if(a[i][j]!=0&&ch[i][j]!='*')
                {
                    printf("%3d.",a[i][j]);
                    for(l=i;l<r&&ch[l][j]!='*';l++)
                    {
                        printf("%c",ch[l][j]);
                        a[l][j]=0;
                    }
                    printf("\n");
                }
            }
        }
    }

    return 0;
}