On 11Oct2020 18:54, None <olivares33561@xxxxxxxxxxxxxx> wrote:
>The play 15 different sets of numbers and to check if they won any prize a script using a chain of if statements or case statements would be correct to implement this. AWK may also do the job?
>There are six numbers that we need to check let us suppose that we had the numbers in a file numbers.dat and it has the fifteen combinations
>
>2 - 3 - 5 - 7 - 11 - 13
>...
>...
>15 versions
>
>Check against the winning numbers
>
>2 - 7 - 23 - 38 - 51 - 53
>
>Faster way to check compare string? Compare numbers one by one and check for at least 3
This feels somewhat like homework, so I'll provide suggests instead of
complete code. Besides, you probably want to write it yourself.
_If_ you're doing this in the shell (/bin/sh), a case statement is a
surprisingly quick way to test the presence of a value against a list.
Suppose you've got one number in $value. Suppose you have the list to
compare against in $numbers as a string separated by commas. Then this:
case ",$numbers," in
*",$value,"*)
echo "$value is present in $numbers!"
;;
esac
can be used to check. Since you're counting matches set a counter to 0
and iterate over the values, and increment the counter once in the case
statement. Check the counter after the loop.
If you've really got a string like "2 - 3 - 5 - 7 - 11 - 13" it is
trivial to use " - " as the separator instead of a comma.
You can easily write a shell function to compare a batch of values.
Then you can iterate over the file in numbers.dat looking counting the
matches for each line:
while read numbers
do
... compare $numbers against your picked numbers ...
done < numbers.dat
This if-statement:
>If (successful numbers >= 3)
> Write you have won $3
>If (successful numbers >= 4)
> Write you have won $56
>If (successful numbers >= 5)
> Write you have won $156
>If (successful numbers > 5)
> Write you are a millionaire and have won the jackpot
Is better written as a case statement, testing the count from your
comparison function.
case $count in
......... the various values ...
5) echo "156" ;;
6) echo "you are a millionaire" ;;
esac
Cheers,
Cameron Simpson <cs@xxxxxxxxxx>
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