Блог пользователя Hasv

Автор Hasv, 5 лет назад, По-английски

it will be nice idea if people which their rating less than 1900 to be allowed to make private groups and make contest to train with their friends, colleagues. Advantages: 1. practice more and make practice more fun. 2. encourage you to solve problem faster. 3. know new ideas. 4. practice particular type of questions each contest.

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