Add solution for Challenge 19 by azs0309

challenge-19/submissions/azs0309/solution-template.go

@@ -0,0 +1,95 @@
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	// Example slice for testing
+	numbers := []int{3, 1, 4, 1, 5, 9, 2, 6}
+
+	// Test FindMax
+	max := FindMax(numbers)
+	fmt.Printf("Maximum value: %d\n", max)
+
+	// Test RemoveDuplicates
+	unique := RemoveDuplicates(numbers)
+	fmt.Printf("After removing duplicates: %v\n", unique)
+
+	// Test ReverseSlice
+	reversed := ReverseSlice(numbers)
+	fmt.Printf("Reversed: %v\n", reversed)
+
+	// Test FilterEven
+	evenOnly := FilterEven(numbers)
+	fmt.Printf("Even numbers only: %v\n", evenOnly)
+}
+
+// FindMax returns the maximum value in a slice of integers.
+// If the slice is empty, it returns 0.
+func FindMax(numbers []int) int {
+	if len(numbers) == 0{
+	 return 0
+	}
+	max := numbers[0]
+	for _ , number := range numbers[1:] {
+	    if max < number{
+	       max = number
+	    }
+	}
+
+	return max
+}
+
+// RemoveDuplicates returns a new slice with duplicate values removed,
+// preserving the original order of elements.
+func RemoveDuplicates(numbers []int) []int {
+	if len(numbers) == 0{
+	 return []int{}
+	}
+	result := make([]int,0,len(numbers))
+
+	result = append(result, numbers[0])
+	for _, number := range numbers {
+	    found := false
+	    for _, inresult := range result {
+	        if number == inresult {
+	            found = true
+	            }
+	        }
+	   if !found {
+	       result = append(result, number)
+	   }
+	}
+	return result
+}
+
+// ReverseSlice returns a new slice with elements in reverse order.
+func ReverseSlice(slice []int) []int {
+    if len(slice) == 0{
+	 return []int{}
+	}
+// 	if len(slice) == 1{
+// 	 return slice
+// 	}
+	reversed := make([]int,0,len(slice))
+	for i := len(slice)-1; i >= 0 ; i-- {
+	    reversed = append(reversed,slice[i])
+	}
+	return reversed
+}
+
+// FilterEven returns a new slice containing only the even numbers
+// from the original slice.
+func FilterEven(numbers []int) []int {
+	if len(numbers) == 0{
+	 return []int{}
+	}
+	filtered := make([]int,0)
+	for _, number := range numbers {
+	    if number%2 == 0 {
+	        filtered = append(filtered, number)
+	    }
+	}
+	return filtered
+}