题目链接:
https://leetcode-cn.com/problems/running-sum-of-1d-array/
class Solution {
public int[] runningSum(int[] nums) {
for (int i = 1; i < nums.length; i++) {
nums[i]+=nums[i-1];
}
return nums;
}
}
输出当前值之前所有值的累加和









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