Ultimately, the most rigorous traceability solutions, including QR codes and microchips, won't be useful if people don't actually check them as a condition of making their purchases. Imitators can simply counterfeit QR code labels, for example.
To work around this, I started pre-allocating…everything:
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quickSortRecursive(arr, pivotIdx + 1, high); // 排序右半部分
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Мир Российская Премьер-лига|19-й тур