Why json answer is not readable? Maybe there is a small error in the response format ...

I re-tested the json output format on a small number of files. And in my opinion, the conclusion corresponds to the technical task. I attach screenshots ...

I tested the raw data you proposed with the top parameter. And my algorithm worked without errors. The "segmentation fault" error did not appear. I enclose the screenshots, the approximate working time is visible on the screenshots ...

Final score for this submission (out of 100):

Languages: 13.21
News EN: 0
News RU: 11.46
Categories EN: 42.62
Categories RU: 47.36
Threads EN: 14.56
Threads RU: 11.47
Top news EN: 9.06
Top news RU: 9.34

These data reflect the relative accuracy, precision and speed of the algorithm as compared to the other submissions.

In our preliminary tests, this submission received the following scores (out of 100):

Languages: 92
News EN: 87
News RU: 80
Categories EN: 74
Categories RU: 65
Threads EN: 57
Threads RU: 30
Top EN: 39
Top RU: 36

This is not the final result, please stay tuned for updates. We apologize for the delay.

В ходе предварительного тестирования алгоритма были выявлены следующие недостатки в ранжировании:

– Отсутствуют многие главные сюжеты в разделе ‘Main’ и внутри категорий. 

– Во многих сюжетах некорректный дублирующийся заголовок. Заголовки большей части сюжетов слишком размытые (информация не подаётся в краткой нейтральной форме). 

– Нарушена сортировка статей практически во всех сюжетах: релевантные статьи смешаны с нерелевантными.

#comment9925
This submission was unable to deliver results for stages 2-5 of the test (news/categories/threads/top) due to an issue on our side. The issue has been fixed and will not result in a penalty during final scoring.

The algorithm has been relaunched, kindly check the new results.