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Doubt regarding sqrt function in G++ 17 and 23
By Dark_Knight_3, history, 2 hours ago, In English

In the recent Codeforces Round 976 (Div. 2) and Divide By Zero 9.0 contest, I submitted my solution for 2020B - Brightness Begins in C++ 23. There, I got the wrong answer on G++ 23, but after the contest, I solved it by changing the language to G++ 17, and it got accepted. So what was the problem? Should I be using G++ 17 or G++ 23? What should be considered when using the built-in sqrt() function? Like precision, etc.. G++ 17 solution 283662762 G++ 23 solution 283597439

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2 hours ago, # |
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Auto comment: topic has been updated by Dark_Knight_3 (previous revision, new revision, compare).

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2 hours ago, # |
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2 hours ago, # |
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You should be using either sqrtl or binary search.

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    119 minutes ago, # ^ |
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    But the same code that got WA on 8 with G++ 23 got accepted with G++ 17. In that code, sqrt() worked. I was having this confusion.

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      114 minutes ago, # ^ |
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      The sqrt function works using floating points. So maybe precision error varies among compilers.

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      109 minutes ago, # ^ |
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      The same thing happened to me too XD

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