Add: Defanging an IP Address

Author: openset

internal/leetcode/problems_status.go

@@ -217,6 +217,7 @@ var problemStatus = map[int]bool{
 	1046: true,
 	1047: true,
 	1051: true,
+	1108: true,
 	1154: true,
 	1163: true,
 	1185: true,

problems/defanging-an-ip-address/defanging_an_ip_address.go

@@ -1,7 +1,7 @@
-package defanging_an_ip_address
+package problem_1108
 
 import "strings"
 
 func defangIPaddr(address string) string {
-	return strings.Replace(address, ".", "[.]", -1)
+	return strings.ReplaceAll(address, ".", "[.]")
 }

problems/defanging-an-ip-address/defanging_an_ip_address_test.go

@@ -0,0 +1,27 @@
+package problem_1108
+
+import "testing"
+
+type caseType struct {
+	input    string
+	expected string
+}
+
+func TestDefangIPaddr(t *testing.T) {
+	tests := [...]caseType{
+		{
+			input:    "1.1.1.1",
+			expected: "1[.]1[.]1[.]1",
+		},
+		{
+			input:    "255.100.50.0",
+			expected: "255[.]100[.]50[.]0",
+		},
+	}
+	for _, tc := range tests {
+		output := defangIPaddr(tc.input)
+		if output != tc.expected {
+			t.Fatalf("input: %v, output: %v, expected: %v", tc.input, output, tc.expected)
+		}
+	}
+}