Number of Ways to Split Array

export function waysToSplitArray(nums: number[]): number {
  const n = nums.length;
  const total = nums.reduce((acc, num) => acc + num, 0);
 
  let sum = 0;
  let answer = 0;
  for (let i = 0; i < n - 1; i++) {
    sum += nums[i];
    if (total <= 2 * sum) {
      answer += 1;
    }
  }
  return answer;
}