What's the reason behind the Runtime Error?

Правка en1, от Parvej, 2021-12-06 06:25:25

I got a runtime error on the last Atcoder Regular Contest.

The problem is this .

My RE solution here .

Runtime Error Part
RE test case

I always wrote (char) ('a'+k)to get the kth letter from the alphabet and didn't get Runtime Error on any platform.

Why am I getting RE this time?

Теги mysterious runtime error, atcoder.jp

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en1 Английский Parvej 2021-12-06 06:25:25 737 Initial revision (published)