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December 3, 2023 01:25
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2023 advent of code day 1
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# first star | |
df <- read.table(text = puzzle_input, header = FALSE, sep = "\n") | |
df$digits <- as.numeric(paste0(sub(".*?(\\d).*", "\\1", df$V1), sub(".*(\\d+).*$", "\\1", df$V1))) | |
sum_cal_values <- sum(df$digits) | |
# second star | |
df$V2 <- sapply(df$V1, function(x){ | |
gsub("one", "o1e", | |
gsub("two", "t2o", | |
gsub("three", "thr3e", | |
gsub("four", "f4r", | |
gsub("five", "f5e", | |
gsub("six", "s6x", | |
gsub("seven", "se7n", | |
gsub("eight", "e8t", | |
gsub("nine", "n9e", x))))))))) | |
}) | |
df$digits_V2 <- as.numeric(paste0(sub(".*?(\\d).*", "\\1", df$V2), sub(".*(\\d+).*$", "\\1", df$V2))) | |
sum_cal_values_V2 <- sum(df$digits_V2) |
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