【leetcode_easy_array】1365. How Many Numbers Are Smaller Than the Current Number

problem

1365. How Many Numbers Are Smaller Than the Current Number

理解清楚题意，以及计算过程；

solution1: two vector;

code

 

solution2: one vector;

code

 

注意

1. 累加和的计算公式；

2. 求和与所求之间的关系；

3. 所求结果首元素的确定；

 

参考

1. leetcode_1365. How Many Numbers Are Smaller Than the Current Number;

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