input = ["red", "green", "red", "blue", "blue"]
result = 2 (1 red pair + 1 blue pair)
input = ["red", "red", "red", "red", "red", "red"]
result = 3 (3 red pairs)
👉 @seniorFront
Senior Front - канал для front-end программистов, здесь есть много всего про CSS3, Javascript, Html5, Angular, React, видео / статьи / курсы
input = ["red", "green", "red", "blue", "blue"]
result = 2 (1 red pair + 1 blue pair)
input = ["red", "red", "red", "red", "red", "red"]
result = 3 (3 red pairs)
👉 @seniorFront