题目描述：
提交：
class Solution: def rangeSum(self, nums: List[int], n: int, left: int, right: int) -> int: l = [] for i in range(n): for j in range(i+1,n+1): l.append(sum(nums[i:j])) l.sort() print(l) return sum(l[left-1:right]) % (10**9 + 7)
原文：https://www.cnblogs.com/oldby/p/13287781.html