### NaimSS's blog

By NaimSS, history, 10 months ago,

Yesterday was the UNICAMP Selection Contest and it is now available to everyone! Statements are available in Portuguese and English and editorial is available in Portuguese.

I would like to thank the organization team from UNICAMP Fábio Usberti (bituser) and Tiago Domingos (tdas), our testers Dranoel321, emaneru, Leonardo_Paes, LoboLobo, Luca, MvKaio, nathan_luiz and perchuts, and LoboLobo for coming with the idea for problem H — "Team Division".

Congratulations for our top 3 winners:

The contest was done in memorial of Technoblade, legendary Minecraft Youtuber, so he will appear in a lot of the problems. I hope you enjoy, and remember, TechnobladeNeverDies!

Link to the contest: UNICAMP Selection Contest 2023.

Editorial is available in the Contest material.

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By NaimSS, history, 11 months ago,

Last week we had a local Contest available here (statements only in portuguese), and I was surprised when the easiest problem was getting a lot of Wrong Answers on test 1. All of them seemed correct, gave the correct output locally and were using GNU C11. For some reason, re-submitting the same code in GNU C++ gave AC. Why?

## Problem Statement

Given the formula of gravitational attraction $F = \frac{G\cdot M_1 \cdot M_ 2}{d^2}$, find the value of $G$ given the mass of the 2 objects, the force and their positions on space (which is only a line).

## The code

WA on 1

AC

After seeing this, I made an announcement for people to submit their problem using GNU C++ and a ton of AC came in... as a setter I was frustrated by such a bug and want to know why that happened :(

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