go: add «945. Minimum Increment to Make Array Unique»

Signed-off-by: Matej Focko <me@mfocko.xyz>

go/minimum-increment-to-make-array-unique.go

@@ -0,0 +1,17 @@
+package minimum_increment_to_make_array_unique
+
+import "slices"
+
+func minIncrementForUnique(nums []int) int {
+	slices.Sort(nums)
+
+	moves := 0
+	for i := 1; i < len(nums); i++ {
+		if nums[i] <= nums[i-1] {
+			moves += nums[i-1] + 1 - nums[i]
+			nums[i] = nums[i-1] + 1
+		}
+	}
+
+	return moves
+}