+ Easy
2D Array - DS ---- https://bit.ly/2M3GvV1
Arrays: Left Rotation ---- https://bit.ly/2Fpowrn
Between two sets ---- https://www.hackerrank.com/challenges/between-two-sets/problem
Counting Valleys ---- https://bit.ly/2Gzn2eG
Jumping on the ---- https://bit.ly/2DZWrDU
Kangaroo ---- https://www.hackerrank.com/challenges/kangaroo/problem
Repeated String ---- https://bit.ly/2GRMKdN
Sock Merchant ---- https://bit.ly/2SJegl0
Time Conversion ---- https://www.hackerrank.com/challenges/time-conversion/problem
Medium
New Year Chaos ---- https://bit.ly/2V1BzCX
Count Triplets ---- https://bit.ly/2J6QwTm
minimum Swaps 2 ---- https://bit.ly/2Jt7F6k
- Hard
Array Manipulation ---- https://bit.ly/2WwlF4M