This is the 7864th most frequent Russian word.
кандидатам
The word "кандидатам" in English means "to candidates" (dative plural form of "кандидат").
The word 'кандидатам' here is used in the dative plural form to indicate recipients of the action, i.e., 'candidates' to whom the tasks are offered.
Мы предлагаем интересные задачи всем нашим кандидатам.
We offer interesting tasks to all our candidates.
In this sentence, 'кандидатам' also takes the dative plural form to show who received the information, referring to 'the candidates'.
Вы дали кандидатам необходимую информацию перед собеседованием.
You gave the candidates the necessary information before the interview.
Here, 'кандидатам' is again in the dative plural form and is used as a part of an indirect object clause to indicate the candidates who passed the test as the recipients of the job offer.