3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution

In this guide, you will get 3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution with the best time and space complexity. The solution to Minimum Operations to Make Binary Array Elements Equal to One II problem is provided in various programming languages like C++, Java, and Python. This will be helpful for you if you are preparing for placements, hackathons, interviews, or practice purposes. The solutions provided here are very easy to follow and include detailed explanations.

Table of Contents

  1. Problem Statement
  2. Complexity Analysis
  3. Minimum Operations to Make Binary Array Elements Equal to One II solution in C++
  4. Minimum Operations to Make Binary Array Elements Equal to One II solution in Java
  5. Minimum Operations to Make Binary Array Elements Equal to One II solution in Python
  6. Additional Resources
3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution image

Problem Statement of Minimum Operations to Make Binary Array Elements Equal to One II

You are given a binary array nums.
You can do the following operation on the array any number of times (possibly zero):

Choose any index i from the array and flip all the elements from index i to the end of the array.

Flipping an element means changing its value from 0 to 1, and from 1 to 0.
Return the minimum number of operations required to make all elements in nums equal to 1.

Example 1:

Input: nums = [0,1,1,0,1]
Output: 4
Explanation:
We can do the following operations:

Choose the index i = 1. The resulting array will be nums = [0,0,0,1,0].
Choose the index i = 0. The resulting array will be nums = [1,1,1,0,1].
Choose the index i = 4. The resulting array will be nums = [1,1,1,0,0].
Choose the index i = 3. The resulting array will be nums = [1,1,1,1,1].

See also  2554. Maximum Number of Integers to Choose From a Range I LeetCode Solution

Example 2:

Input: nums = [1,0,0,0]
Output: 1
Explanation:
We can do the following operation:

Choose the index i = 1. The resulting array will be nums = [1,1,1,1].

Constraints:

1 <= nums.length <= 105
0 <= nums[i] <= 1

Complexity Analysis

  • Time Complexity: O(n)
  • Space Complexity: O(1)

3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution in C++

class Solution {
 public:
  int minOperations(vector<int>& nums) {
    int ans = 0;
    int target = 1;

    for (const int num : nums)
      if (num != target) {
        target ^= 1;
        ++ans;
      }

    return ans;
  }
};
/* code provided by PROGIEZ */

3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution in Java

class Solution {
  public int minOperations(int[] nums) {
    int ans = 0;
    int target = 1;

    for (final int num : nums)
      if (num != target) {
        target ^= 1;
        ++ans;
      }

    return ans;
  }
}
// code provided by PROGIEZ

3192. Minimum Operations to Make Binary Array Elements Equal to One II LeetCode Solution in Python

class Solution:
  def minOperations(self, nums: list[int]) -> int:
    ans = 0
    target = 1

    for num in nums:
      if num != target:
        ans += 1
        target ^= 1

    return ans
 # code by PROGIEZ

Additional Resources

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