feat: add queens attack structure

implementation/queens_attack_ii.go

@@ -0,0 +1,7 @@
+package implementation
+
+// https://www.hackerrank.com/challenges/queens-attack-2/problem?isFullScreen=false
+
+func queensAttack(n int32, k int32, r_q int32, c_q int32, obstacles [][]int32) int32 {
+	return 0
+}

implementation/queens_attack_ii_test.go

@@ -0,0 +1,53 @@
+package implementation
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+type QueensAttackIITestCase struct {
+	n         int32
+	k         int32
+	r_q       int32
+	c_q       int32
+	obstacles [][]int32
+	result    int32
+}
+
+func TestQueensAttackII(t *testing.T) {
+	tests := []QueensAttackIITestCase{
+		{
+			n:         1,
+			k:         0,
+			r_q:       1,
+			c_q:       1,
+			result:    0,
+			obstacles: [][]int32{},
+		},
+		{
+			n:         4,
+			k:         0,
+			r_q:       4,
+			c_q:       4,
+			result:    9,
+			obstacles: [][]int32{},
+		},
+		{
+			n:      5,
+			k:      3,
+			r_q:    4,
+			c_q:    3,
+			result: 10,
+			obstacles: [][]int32{
+				{5, 5},
+				{4, 2},
+				{2, 3},
+			},
+		},
+	}
+
+	for _, test := range tests {
+		assert.Equal(t, test.result, queensAttack(test.n, test.k, test.r_q, test.c_q, test.obstacles))
+	}
+}