I was looking at INTRPATH Codes and found this for so many users.
https://www.codechef.com/viewsolution/24834724
https://www.codechef.com/viewsolution/24837322
https://www.codechef.com/viewsolution/24835822
https://www.codechef.com/viewsolution/24839937
https://www.codechef.com/viewsolution/24844444
https://www.codechef.com/viewsolution/24833195
What is this happening ?