Confusion Matrix

Build the $2\times 22\backslash times2$ confusion matrix of binary labels and predictions. Rows are the actual class and columns are the predicted class.

Implement solve(y,pred).

Returns. Return a $2\times 22\backslash times2$ integer array [[TN, FP], [FN, TP]].

Examples

Example 1

Input:

solve([0, 1, 1, 0], [0, 1, 0, 1])

Output:

[[1, 1], [1, 1]]

Example 2

Input:

solve([1, 1, 1, 0], [1, 1, 0, 0])

Output:

[[1, 0], [1, 2]]