{ "data": { "question": { "questionId": "3477", "questionFrontendId": "3192", "boundTopicId": null, "title": "Minimum Operations to Make Binary Array Elements Equal to One II", "titleSlug": "minimum-operations-to-make-binary-array-elements-equal-to-one-ii", "content": "
You are given a binary array nums
.
You can do the following operation on the array any number of times (possibly zero):
\n\ni
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.
\n\nReturn the minimum number of operations required to make all elements in nums
equal to 1.
\n
Example 1:
\n\nInput: nums = [0,1,1,0,1]
\n\nOutput: 4
\n\nExplanation:
\nWe can do the following operations:
i = 1
. The resulting array will be nums = [0,0,0,1,0]
.i = 0
. The resulting array will be nums = [1,1,1,0,1]
.i = 4
. The resulting array will be nums = [1,1,1,0,0]
.i = 3
. The resulting array will be nums = [1,1,1,1,1]
.Example 2:
\n\nInput: nums = [1,0,0,0]
\n\nOutput: 1
\n\nExplanation:
\nWe can do the following operation:
i = 1
. The resulting array will be nums = [1,1,1,1]
.\n
Constraints:
\n\n1 <= nums.length <= 105
0 <= nums[i] <= 1
nums[0]
to 1 is by performing an operation with index i = 0
.",
"Iterate from left to right and perform an operation at each index i where nums[i] is 0, and keep track of how many operations are currently performed on the suffix."
],
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