1480 & 1512

[harryleonardo]

Adding :

1480.Running-Sum-of-1d-Array
1512.Number-of-Good-Pairs

Both of them implemented using Golang and also already covered by unit test.

[codecov-commenter]

Codecov Report

Merging #71 into master will increase coverage by 0.03%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #71      +/-   ##
==========================================
+ Coverage   71.59%   71.63%   +0.03%     
==========================================
  Files         521      523       +2     
  Lines        9355     9366      +11     
==========================================
+ Hits         6698     6709      +11     
  Misses       2399     2399              
  Partials      258      258              

Impacted Files	Coverage Δ
...ng-Sum-of-1d-Array/1480.Running-Sum-of-1d-Array.go	100.00% <100.00%> (ø)
....Number-of-Good-Pairs/1512.Number-of-Good-Pairs.go	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 5830c8d...44f8b5b. Read the comment docs.

[halfrost]

1480 这道题你的解法不够好，没有 beat 100%，我重新写了一版，其实只用一层循环就可以解决了。时间复杂度 O(n)。