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

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
}