Want to add cses problems of dp in c++

[SanyamAgrawal07]

I would like to add the following problems:

1)https://cses.fi/problemset/task/1633
2)https://cses.fi/problemset/task/1634
3)https://cses.fi/problemset/task/1635
4)https://cses.fi/problemset/task/1637
5)https://cses.fi/problemset/task/1638

PLEASE ASSIGN ME THIS ISSUE UNDER HACKTOBERFEST

[ABHISHEK-AMRUTE]

Assigned

[SanyamAgrawal07]

@ABHISHEK-AMRUTE Please do check out my PR #135

[SanyamAgrawal07]

@ABHISHEK-AMRUTE Please review my PR #135