Implementa Isogram em Golang

Author: verdade

README.md

@@ -1514,6 +1514,64 @@ Com o objetivo de alcançar uma abrangência maior e encorajar mais pessoas a co
                 </a>
             </td>
         </tr>
+  <tr>
+            <td><a href="https://www.geeksforgeeks.org/check-if-all-given-strings-are-isograms-or-not/">Algoritmo Isogram</a></td>
+            <td> <!-- C -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- C++ -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Java -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Python -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Go -->
+                <a href="./src/go/isogram.go">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/go/go-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Ruby -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- JavaScript -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Swift -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Rust -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Scala -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+            <td> <!-- Kotlin -->
+                <a href="./CONTRIBUTING.md">
+                    <img align="center" height="25" src="https://cdn.jsdelivr.net/gh/devicons/devicon/icons/github/github-original.svg" />
+                </a>
+            </td>
+        </tr>
     </table>
     <table align="center">
         <tr>

src/go/isogram.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"fmt"
+	"strings"
+	"unicode"
+)
+
+/*
+	Instructions
+
+Determine if a word or phrase is an isogram.
+
+An isogram (also known as a "non-pattern word") is a word or phrase without a repeating letter,
+however spaces and hyphens are allowed to appear multiple times.
+
+Examples of isograms:
+
+	>> lumberjacks
+	>> background
+	>> downstream
+	>> six-year-old
+
+The word isograms, however, is not an isogram, because the s repeats.
+*/
+func main() {
+	fmt.Println(IsIsogram("isograms"))
+	fmt.Println(IsIsogram("isogram"))
+}
+
+// IsIsogram returns true if the input s is an isogram
+func IsIsogram(word string) bool {
+	word = strings.ToLower(word)
+	for i, c := range word {
+		if unicode.IsLetter(c) && strings.ContainsRune(word[i+1:], c) {
+			return false
+		}
+	}
+	return true
+}