Rat in a maze hb

[S18LPC-OL0010 (Preesh Tiwari)]

https://hack.codingblocks.com/contests/c/457/398
https://ide.codingblocks.com/#/s/29865

[Abhishek-Vanjani-1385688111468238 (Abhishek Vanjani)]

https://ide.codingblocks.com/#/s/29934

i have made the required changes and commented the mistakes.