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Refactor day 2 awk

This commit is contained in:
kageru 2019-12-02 11:59:35 +01:00
parent 2dd93d776e
commit 87551c682f
1 changed files with 20 additions and 9 deletions
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29
2019/02/day2.awk
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@ -1,15 +1,19 @@
{ # There are no scopes, so we just write to `arr` here and use it later.
len = split($1, arr, ","); # Returning the array does not seem to be legal either. Only scalars allowed.
function prepareInput(raw) {
len = split(raw, arr, ",");
for (i=0; i<=len; i++) { for (i=0; i<=len; i++) {
arr[i-1] = arr[i]; arr[i-1] = int(arr[i]);
} }
arr[1] = 12; return len
arr[2] = 2; }
function process(arr, len) {
for (i=0; i<len; i+=4) { for (i=0; i<len; i+=4) {
cmd = int(arr[i]); cmd = arr[i];
e1 = int(arr[i+1]); e1 = arr[i+1];
e2 = int(arr[i+2]); e2 = arr[i+2];
target = int(arr[i+3]); target = arr[i+3];
if (cmd == 1) if (cmd == 1)
arr[target] = arr[e1] + arr[e2]; arr[target] = arr[e1] + arr[e2];
else if (cmd == 2) else if (cmd == 2)
@ -19,5 +23,12 @@
else else
print "Error, invalid command"; print "Error, invalid command";
} }
}
{
len = prepareInput($1);
arr[1] = 12;
arr[2] = 2;
process(arr, len)
print arr[0] print arr[0]
} }