gather input

c3-m3/assignment.md

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+### Instructions
+The goal of this activity is to explore the use of threads by creating a program for sorting integers that uses four goroutines to create four sub-arrays and then merge the arrays into a single array.
+
+### Detail Instruction
+Write a program to sort an array of integers. The program should partition the array into 4 parts, each of which is sorted by a different goroutine. Each partition should be of approximately equal size. Then the main goroutine should merge the 4 sorted subarrays into one large sorted array.
+
+The program should prompt the user to input a series of integers. Each goroutine which sorts ¼ of the array should print the subarray that it will sort. When sorting is complete, the main goroutine should print the entire sorted list.
+
+### Review criterialess 
+Students will receive five points if the program sorts the integers and five additional points if there are four goroutines that each prints out a set of array elements that it is storing.

c3-m3/sortRoutine.go

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+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	// https://stackoverflow.com/questions/39565055/read-a-set-of-integers-separated-by-space-in-golang
+	fmt.Println("Please enter moret than 4 integers")
+	var n int
+	if m, err := fmt.Scan(&n); m != 1 {
+		panic(err)
+	}
+	fmt.Println("Enter the integerss")
+	sli := make([]int, n)
+	ReadN(sli, 0, n)
+
+}
+
+// ReadN dfd
+func ReadN(sli []int, i, n int) {
+	if n == 0 {
+		return
+	}
+	if m, err := fmt.Scan(&sli[i]); m != 1 {
+		panic(err)
+	}
+	// 1,2,3, 4- 3,2,1, 0
+	// e.g subsequent call when n=4 as initial value
+	ReadN(sli, i+1, n-1)
+}