Unable to scan input in java . my code perfectly work on eclipse codechef complier can not scan input show error....i try both scanner and bufferedReader.... help plssss?

[nikhil_2911]

when i run with custom input it run successfully but when i run it it shows error
help fast…
thanks in advance

[ssjgz]

New to Codechef. Can't understand the platform

One thing that trips up all people migrating from Hackerrank (hello :)) is that clicking “Run” (not “Submit”) here on Codechef does not run your code with the sample testcases - instead, it runs it with empty input (so attempts to read anything from stdin will fail, or give weird values). If you click “Run”, you must provide Custom Input.