uvaoj-232:crossword answer
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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 theother 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 squaresimmediately to the left or above them are ``eligible." White squares with nosquares either immediately to the left or above are also ``eligible." No othersquares 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 ina 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 acolumn 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 integersrandc ( and ), wherer (the first number) is the number ofrows in the puzzle andc (the second number) is the number of columns.
The rrows of input which follow each containc characters (excluding the end-of-line) which describe the solution. Each of thosec characters is an alphabeticcharacter which is part of a word or the character ``*", which indicates ablack 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 downwords. 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), theAcross andDown headings should still appear.
Separate output for successive input puzzlesby a blank line.
Sample Input
2 2AT*O6 7AIM*DEN*ME*ONEUPON*TOSO*ERIN*SA*OR*IES*DEA0
Sample Output
puzzle #1:Across 1.AT 3.ODown 1.A 2.TOpuzzle #2:Across 1.AIM 4.DEN 7.ME 8.ONE 9.UPON 11.TO 12.SO 13.ERIN 15.SA 17.OR 18.IES 19.DEADown 1.A 2.IMPOSE 3.MEO 4.DO 5.ENTIRE 6.NEON 9.US 10.NE 14.ROD 16.AS 18.I 20.A
题解:刘汝佳白书58页练习题3-6,模拟题,水题,重点在于细心;
分两个部分,输入和输出;
输入的时候注意给每个位置的方块进行编码,我是用getchar进行字符的输入,这样可以从1开始进行循环输入,在判定的时候比较方便;
输出注意%3d,空行,冒号什么的,我被一个冒号卡了一个小时,真心悲伤啊;
详细代码如下:
code:
#include <iostream>
#include <string>
#include <cstring>
#include <algorithm>
using namespace std;
char m[20][20];
int num[20][20];
int main()
{
int time=0;
int rows,cols;
int cnt;
bool flag=0;
while(cin>>rows&&rows&&cin>>cols)
{
cout<<endl;
flag=1;
memset(m, '*' ,sizeof m);
memset(num, 0 ,sizeof num);
cnt=0;
for(int i=1; i<=rows; i++)
{
for(int j=1; j<=cols; j++)
{
cin>>m[i][j];
if((m[i][j-1]=='*'||m[i-1][j]=='*')&&m[i][j]!='*')
{
num[i][j]=++cnt;
}
}
}
cout<<"puzzle #"<<++time<<':'<<endl;
cout<<"Across"<<endl;
for(int i=1; i<=rows; i++)
{
for(int j=1; j<=cols; j++)
{
if(m[i][j-1]=='*'&&m[i][j]!='*')
{
printf("%3d.",num[i][j]);
while(m[i][j]!='*'&&j<=cols)
{
cout<<m[i][j];
j++;
}
cout<<endl;
}
}
}
//
cout<<"Down"<<endl;
for(int i=1; i<=rows; i++)
{
for(int j=1; j<=cols; j++)
{
if(m[i-1][j]=='*'&&num[i][j]!=0)
{
printf("%3d.",num[i][j]);
int k=i;
while(m[k][j]!='*'&&k<=rows)
{
cout<<m[k][j];
k++;
}
cout<<endl;
}
}
}
}
return 0;
}
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