Why this run time error is getting?

[prakash_342]

Here I was getting a runtime error but If I give custom input or If I execute in Non-IDE it is working am I close the scanner to resolve this error?

[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.

[prakash_342]

Yeah got it to buddy thanks for your responce.

[nhapho]

Good