ProjectEuler - #22 - Names Scores

projecteuler_22v1.sh

#!/bin/bash


sed 's/"//g;s/,/\n/g' 0022_names.txt |
sort |
gawk  '
BEGIN { S = 0 }
{
    sum = 0
    for (i = 1; i <= length($0); i++) {
        char = substr($0, i, 1)
        value = ord(char) - ord("A") + 1
        sum += value
    }
    #print NR , $0 , sum
    S += NR * sum
}

# Function to get ASCII value of a character
function ord(c) {
    return index("ABCDEFGHIJKLMNOPQRSTUVWXYZ", c)
}
END { print S } '

projecteuler_22v2.sh

#!/bin/bash

sed 's/"//g; s/,/\n/g' 0022_names.txt |
sort |
gawk '
BEGIN { S = 0 }
{
    sum = 0
    # Calculate alphabetical position of each character directly
    for (i = 1; i <= length($0); i++) {
        char = substr($0, i, 1)
        value = index("ABCDEFGHIJKLMNOPQRSTUVWXYZ", char)
        sum += value
    }
    S += NR * sum
}
END { print S }'