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Doughnut charts can be a perfect tool to visualize results or percentage of achieved goals.The charts can be a bit...
In this week’s challenge, you need to help your local post office whose package sorting system is broken. The packages...
In our first quiz the task is simple – but not too easy: find the secret codes in a list...
Is it…? Is it worth the time you need to spend before you learn the function… and even after? There...