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2270. Number of Ways to Split Array #1064

Answered by mah-shamim
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We can approach it using the following steps:

Approach:

  1. Prefix Sum: First, we compute the cumulative sum of the array from the left, which helps in checking the sum of the first i+1 elements.
  2. Total Sum: Compute the total sum of the array, which is useful in checking if the sum of the remaining elements is less than or equal to the sum of the first i+1 elements.
  3. Iterate over the array: For each valid index i (where 0 <= i < n-1), we check if the sum of the first i+1 elements is greater than or equal to the sum of the last n-i-1 elements.
  4. Efficiency: Instead of recalculating the sums repeatedly, use the prefix sum and the total sum for efficient comparisons.

Let's implement this solution …

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mah-shamim
Jan 3, 2025
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@topugit
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topugit Jan 3, 2025
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mah-shamim Jan 3, 2025
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