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Runtime error on test 1 (Who?)
By logistic, history, 5 years ago, In English

Hello everyone! Lately I stumbled upon a strange issue, when I was solving 1324C - Frog Jumps. I usually wrap my code with a template (defines etc.), so here is submission 73465768, which is getting runtime error on test 1. However when I rewrote my code without this template it got accepted 73465554! Can anyone explain me why the code with a template gets runtime error?

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5 years ago, # |
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The real problem with the first submission is not the template; it is reading the number of test cases t using the scanf macro #define sc(x) scanf("%d", &x) after turning off the synchronization between ios_base and stdio using ios_base::sync_with_stdio(false). All subsequent calls cin >> s inside the solve() function return an empty string.

Check the following output of your code.

https://ideone.com/W7vipx

You just need to replace sc(t) in the main() function with cin >> t.

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