С tidyverse
мы можем сделать
library(purrr)
pmap(list(listA, listB), ~ sort(c(...)))
#[[1]]
# [1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 14 15 16 17 18 19 20 21 22 23 24
#[26] 25
#[[2]]
# [1] 26 27 28 29 30 31 32 33 34 35 36 37 38 39 49
данные
listA <- list(c(1, 2, 3, 5, 14, 15, 17, 20), c(26, 27, 29, 32, 35, 49))
listB <- list(c(4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 21, 22,
23, 24, 25), c(28, 30, 31, 33, 34, 36, 37, 38, 39))