SQL exercises | January 18, 13:31 MSK |
Магистраль инфузионная Качественные инфузионные насосы Aitecs по доступным ценам. Звоните arxmed.ru купить игры steamplay.ru Средство для удаления сажи в дымоходе отзывы Защита от возгорания сажи в дымоходах syntilor.ru | Author's rating for second-stage exercisesex_num - number of exercises of a given author;
avg_length - the average wording length in symbols; avg_time(min) - the average time (in minutes) which spent for solution of one exercise of a given author by the leaders of rating system (TOP 20); rating - the average time (in minutes) which spent for solution of all the exercises of a given author by the leaders of rating system (TOP 20); avg_ball - the average of points received by participants' voting over all exercises of an author; num_vote - number of votes given for all problems of an author
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