3341. Find Minimum Time to Reach Last Room I

[SjxSubham]

Add the following

• Approach
• Intuition
• Solution in Code
• Raise a PR, make sure file name format should be according to the others file in this repo .cpp

[shafaq16]

hey @SjxSubham kindly see my pr #118

[Amber-Mishra-2003]

Added in #145