54 finish

Author: aQua

Algorithms/0054.spiral-matrix/spiral-matrix.go

@@ -8,7 +8,10 @@ func spiralOrder(matrix [][]int) []int {
 	}
 
 	c := len(matrix[0])
-
+	if c == 0 {
+		return []int{}
+	}
+	
 	if len(matrix) == 1 {
 		return matrix[0]
 	}

Algorithms/0054.spiral-matrix/spiral-matrix_test.go

@@ -27,6 +27,19 @@ func Test_Problem0054(t *testing.T) {
 
 	qs := []question{
 
+		question{
+			para{
+				[][]int{
+					[]int{},
+					[]int{},
+					[]int{},
+				},
+			},
+			ans{
+				[]int{},
+			},
+		},
+
 		question{
 			para{
 				[][]int{