Here is how my code is supposed to work. First it takes a number of test cases in variable t. Now the number of text cases can be anything upto 100000. Then it takes two inputs, one for a row and another for a column. Input sample- 

```
3
2 3
6 7
10 10

```

what is supposed to happen is this- 

```
We have the following matrix 
1 0 0 0 0 0 ...
2 2 0 0 0 0 ...
3 3 3 0 0 0 ...
4 4 4 4 0 0 ... 
5 5 5 5 5 0 ... 
6 6 6 6 6 6 ...
and so on ... 
The matrix is created as follows, first row contains one 1 and rest 0's, second row
contains 2 twos and rest zeros, third row contains 3 threes and so on.

Given R and C, calculate the count of even and odd numbers in sub matrix[R,C].
0 is neither odd nor even and 1 based indexing is used i.e. matrix[1,1]=1

Output
For each test case print count of even and odd numbers in sub matrix[R,C].

```

Output Sample- 

```
2 1
12 9
30 25

```

now everything works fine for small numbers in my code. The maximum value of the row and column is supposed to be 100000 each. That's where the problem occurs.For input value of 25000 in either row or column, the code works fine, but if I enter around 30000 or greater value for any of them I get stackoverflowerror.

Here is my complete code- 

```
import java.util.Scanner;

public class TestClass {
public static void main(String args[]) throws Exception {

    Scanner input = new Scanner(System.in);
    int t = input.nextInt();
    int[][] storage = new int[t][2];

    for (int i = 0; i < t; i++) {
        for (int j = 0; j < 2; j++) {
            int x = input.nextInt();
            storage[i][j] = x;

        }
    }
    TestClass test = new TestClass();
    for (int i = 0; i < storage.length; i++) {
        int a = storage[i][0];
        int b = storage[i][1];
        test.theMethod(a, b);
    }
    input.close();
}

public void theMethod(int x, int y) {
    int d = x - y;
    int first = 0;
    int second = 0;
    int[][] resultarray = new int[1][2];
    if (x % 2 == 0) {
        if (x >= 1) {
            if (y >= x) {
                first = number(x);
                second = number(x - 1) + 1;
                resultarray[0][0] = first;
                resultarray[0][1] = second;
            } else if (y < x) {
                first = (number(x) - number(d)) - 1;
                second = (number(x - 1) - number(d - 1)) + 1;
                resultarray[0][0] = first;
                resultarray[0][1] = second;
            }
        }
    } else if (x % 2 != 0) {
        if (x >= 1) {
            if (y >= x) {
                first = number(x) + 1;
                second = number(x - 1);
                resultarray[0][0] = first;
                resultarray[0][1] = second;
            } else if (y < x) {
                first = (number(x) - number(d));
                second = number(x - 1) - number(d - 1);
                resultarray[0][0] = second;
                resultarray[0][1] = first;
            }
        }
    }
    for (int i = 0; i < resultarray.length; i++) {
        for (int j = 0; j < resultarray[i].length; j++) {
            System.out.print(resultarray[i][j]);
            System.out.print(" ");
        }
        System.out.println();
    }

}

public int number(int x) {
    if (x == 1 || x == 0) {
        x = 0;
    } else if (x > 1) {
        x = x + number(x - 2);      //*****this is the error line
    }
    return x;
}
}

```

The error stack trace - 

```
Exception in thread "main" java.lang.StackOverflowError
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)
at TestClass.number(TestClass.java:74)

```

Now, for values greater than 25000 or somewhere around 30000 maybe , this error is displayed. One thing I would like to mention is, I have tried using long for every int value in this program, but I still get the same error for surprisingly even lower input values. Anyone knows what am i doing wrong?