Create: 0367, 0034, and 1898 for golang

[margen2]

• File(s) Modified: 0367-valid-perfect-square.go, 0034-find-first-and-last-position-of-element-in-sorted-array.go, 1898-maximum-number-of-removable-characters.go
• Language(s) Used: golang
• Submission URL:

• 0367: https://leetcode.com/problems/valid-perfect-square/submissions/949861770/
• 0034: https://leetcode.com/problems/find-first-and-last-position-of-element-in-sorted-array/submissions/949862522/
• 1898: https://leetcode.com/problems/maximum-number-of-removable-characters/submissions/949863698/

Important

Please make sure the file name is lowercase and a duplicate file does not already exist before merging.