https://leetcode.com/problems/number-of-ways-to-split-array/description/


Count splits left_sum >= right_sum #medium #prefix_sum

https://leetcode.com/problems/minimum-number-of-operations-to-move-all-balls-to-each-box/description/


Sum distances to all 1 for every position #medium #prefix_sum

https://leetcode.com/problems/grid-game/description/


Maximum of minimized paths #medium #prefix_sum

https://leetcode.com/problems/number-of-sub-arrays-with-odd-sum/description/


Count odd sum subarrays #medium #prefix_sum

https://leetcode.com/problems/maximum-absolute-sum-of-any-subarray/description/


Max abs of subarray sum #medium #prefix_sum

# 09.12.2025
[3583. Count Special Triplets](https://leetcode.com/problems/count-special-triplets/description) medium

Count a[i]==a[j]*2==a[k] #medium #prefix_sum