Counting values in multiple columns

everyone.
Here’s the problem:

Column1  Column2
da          fa
fa          da
ra          da
ta          ta

I need to count how many times each string appears in both columns: I mean, "da" appears 1 time in Column1 and 2 times in Column2, so I need the count of 3. Ps.: I can’t stack them, because it will generate new rows with null values in my dataframe.

>Solution :

Using pivot_longer

library(dplyr)
library(tidyr)

df1 %>% pivot_longer(cols = everything()) %>% count(value)
# A tibble: 4 × 2
  value     n
  <chr> <int>
1 da        3
2 fa        2
3 ra        1
4 ta        2