Add more patterns c programs

[ekta1810]

[ekta1810]

I want to add more pattern c programs. kindly assign this issue to me.

[panditakshay402]

I want to add more pattern c programs. kindly assign this issue to me.

you can directly do commit and PR ,but must follow Readme.md Rules @ekta1810

[Taj-2006]

please assign this task to me