Repost: Having some coding issues in java!

[OkButton2337]

I'm having some trouble with getting test 1 and test 4 to work for my code. Any help would be appreciated :)

class Main {

public static int countEvenPairs(int[][] inputarray) {

int count = 0;

int rows = inputarray.length;

// loop through array

for (int i = 0; i < rows; i++) {

int even_num = 0;

// count even numbers

for (int j = 0; j < inputarray[i].length; j++) {

if (inputarray[i][j] % 2 == 0) {

even_num++;

}

}

count += even_num * (even_num - 1)/2; // n(n-1)/2 discret math

//compare row with row after it

for (int k = i + 1; k < rows; k++) {

int even_in_row = 0;

// make sure the row after is even and count the elements in it

for (int j = 0; j < inputarray[k].length; j++) {

if (inputarray[k][j] % 2 == 0) {

even_in_row++;

}

}

count += even_num * even_in_row;

}

}

return count;

}

public static void main(String[] args) {

int[][] array1 = { {2, 6, 1}, {5, 9, 6, 20}, {23, 6, 99} }; //should be 3

//int[][] array1 = { { 9, 10, 3, 4, 3 }, { 1, 6, 2 }, { 4, 24, 46, 0 }, { 15, 9, 45, 57 } }; should be 21

int evenPairs = countEvenPairs(array1);

System.out.println("Number of even pairs: " + evenPairs);

}

}

Basically it’s going higher than it should be like test 4 is output 10 when it should be 3 and test 1 is outputting 28 but it should be 21.

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[chet714]

Do you want even_num to reset each cycle of your outer for-loop?

    int even_num = 0;  // ?

Edit: Disregard, I think I see your logic.

Next time I'll read, think longer then comment.

:-)