go: add «3191. Minimum Operations to Make Binary Array Elements Equal to One I»

URL:	https://leetcode.com/problems/minimum-operations-to-make-binary-array-elements-equal-to-one-i/
Signed-off-by: Matej Focko <me@mfocko.xyz>

go/minimum-operations-to-make-binary-array-elements-equal-to-one-i.go

@@ -0,0 +1,22 @@
+package main
+
+func minOperations(nums []int) int {
+	n := len(nums)
+
+	count := 0
+	for i := 0; i < n-2; i++ {
+		if nums[i] != 0 {
+			continue
+		}
+
+		nums[i] = 1
+		nums[i+1] = (1 + nums[i+1]) % 2
+		nums[i+2] = (1 + nums[i+2]) % 2
+		count++
+	}
+
+	if nums[n-2] == 0 || nums[n-1] == 0 {
+		return -1
+	}
+	return count
+}