This is the 16384th most frequent Russian word.
решившие
"Those who decided."
Here, 'решившие' is a participle form used to describe the individuals who made the decision prior to taking part.
Решившие принять участие были проинформированы заранее.
Those who decided to participate were informed in advance.
In this example, 'решившие' specifies the students who have actively completed the task.
Решившие задачу ученики получили дополнительные баллы.
Students who solved the problem received extra points.
Here, 'решивших' is used to acknowledge the actions of those individuals who chose to offer support.