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X Total Shapes #70

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63 changes: 63 additions & 0 deletions totalXshapes.java
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Original file line number Diff line number Diff line change
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import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

class totalXshapes
{
public static void main (String[] args)
{
Scanner in = new Scanner(System.in);
int test = in.nextInt();
for(int t=0;t<test;++t){
int row = in.nextInt();
int col = in.nextInt();
char arr[][] = new char[row][col];
for(int i=0;i<row;++i){
String str = in.next();
for(int j=0;j<col;++j)
arr[i][j] = str.charAt(j);
}
int rowIndex[] = new int[row*col];
int colIndex[] = new int[row*col];
int front =-1;
int rear =-1;
int numberOfShapes = 0;
for(int i=0;i<row;++i){
for(int j=0;j<col;++j){
if(arr[i][j]=='X'){
++numberOfShapes;
arr[i][j] = 'O';
rowIndex[++rear] = i;
colIndex[rear] = j;
while(front!=rear){
int r = rowIndex[++front];
int c = colIndex[front];
if(r>0 && arr[r-1][c]=='X'){
arr[r-1][c] = 'O';
rowIndex[++rear] = r-1;
colIndex[rear] = c;
}
if(r<row-1 && arr[r+1][c]=='X'){
arr[r+1][c] = 'O';
rowIndex[++rear] = r+1;
colIndex[rear] = c;
}
if(c>0 && arr[r][c-1]=='X'){
arr[r][c-1] = 'O';
rowIndex[++rear] = r;
colIndex[rear] = c-1;
}
if(c<col-1 && arr[r][c+1]=='X'){
arr[r][c+1] = 'O';
rowIndex[++rear] = r;
colIndex[rear] = c+1;
}
}
}
}
}
System.out.println(numberOfShapes);
}
}
}