widest-pair-of-indices-with-equal-range-sum

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1983. Widest Pair of Indices With Equal Range Sum (Medium)

Hints

Hint 1

Keep prefix sums of both arrays.

Hint 2

Can the difference between the prefix sums at an index help us?

Hint 3

What happens if the difference between the two prefix sums at an index a is x, and x again at a different index b?

Hint 4

This means that the sum of nums1 from index a + 1 to index b is equal to the sum of nums2 from index a + 1 to index b.