1000){
echo "KILLED due to 1000 executions.";
break;
}
//INSTRUCTIOnS
$instr = array_reverse( str_split( substr($input0[$batchPos],0,-2) ) );
$mode1 = @$instr[0];
$mode2 = @$instr[1];
$mode3 = @$instr[2];
$opcode = substr($input1[$batchPos],-2);
if($opcode == 99){
$debug[] = $batchPos.": ".$input1[$batchPos].",".$input1[$batchPos+1].", ".$input1[$batchPos+2].", ".$input1[$batchPos+3];
$debug[] = "Opcode $opcode: halts."."
\n";
$batchPos += 9999999; //PLEASE HALT DAMMIT
break;
}
elseif($opcode == 1){
$debug[] = $batchPos.": ".$input1[$batchPos].",".$input1[$batchPos+1].", ".$input1[$batchPos+2].", ".$input1[$batchPos+3];
$newVal = (getValue($input1, $batchPos+1, $mode1) + getValue($input1, $batchPos+2, $mode2));
$debug[] = "Set new value to ".$newVal." (".getValue($input1, $batchPos+1, $mode1)."+".getValue($input1, $batchPos+2, $mode2).")";
$input1 = setValue($input1, $batchPos+3, $newVal, $mode3);
$batchPos += 4;
}
elseif($opcode == 2){
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2].", ".$input1[$batchPos+3];
$newVal = (getValue($input1, $batchPos+1, $mode1) * (getValue($input1, $batchPos+2, $mode2)));
$input1 = setValue($input1, $batchPos+3, $newVal, $mode3);
$debug[] = "Set new value to ".$newVal;
$batchPos += 4;
}
// ADDED for day 5
elseif($opcode == 3){ // Requires some input.
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1];
if(!empty($inputParam)){
$newValue = array_shift($inputParam);
$input1 = setValue($input1, $batchPos+1, $newValue, $mode1);
$debug[] = "Set ".$input1[$batchPos+1]."'s value to: ".$newValue;
// array_shift($inputParam);
}
else {
echo "Wait for number!"."
";
$debug[] = "Wait for number...";
break;
}
$batchPos += 2;
}
elseif($opcode == 4){
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2];
// $output[] = "Opcode 4: ".$input1[ ($mode1 == 1?$batchPos+1:$input1[$batchPos+1]) ];
$output[] = getValue($input1, $batchPos+1, $mode1);
$debug[] = "Outputs: ".getValue($input1, $batchPos+1, $mode1);
$batchPos += 2;
}
// DAY 5, part 2:
elseif($opcode == 5){ //jump-if-true
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2];
if(getValue($input1, $batchPos+1, $mode1) != 0){
// if($input1[$batchPos+1] != 0 && $jumps < 10){
// $batchPos = $input1[ ($mode2 == 1?$batchPos+2:$input1[$batchPos+2]) ];
$newBatchPos = getValue($input1, $batchPos+2, $mode2);
$debug[] = "Jumped to ".$newBatchPos." (first value: ".getValue($input1, $batchPos+1, $mode1).")";
// $output[] = "Jumped to ".$newBatchPos;
$batchPos = $newBatchPos;
}
else {
$batchPos += 3;
}
}
elseif($opcode == 6){ //jump-if-false
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2];
if(getValue($input1, $batchPos+1, $mode1) == 0){
$newBatchPos = getValue($input1, $batchPos+2, $mode2);
$debug[] = "Jumped to ".$newBatchPos." (first value: ".getValue($input1, $batchPos+1, $mode1).")";
// $output[] = "Jumped to ".$newBatchPos;
$batchPos = $newBatchPos;
}
else {
$batchPos += 3;
}
}
elseif($opcode == 7){ //less than
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2].", ".$input1[$batchPos+3];
if(getValue($input1, $batchPos+1, $mode1) < getValue($input1, $batchPos+2, $mode2)){
$debug[] = "Value: ".getValue($input1, $batchPos+1, $mode1)." < ".getValue($input1, $batchPos+2, $mode2);
// $input1[($mode3 == 1?$batchPos+3:$input1[$batchPos+3])] = 1;
$input1 = setValue($input1, $batchPos+3, 1, $mode3);
}
else {
$debug[] = "Value: ".getValue($input1, $batchPos+1, $mode1)." !< ".getValue($input1, $batchPos+2, $mode2);
// $input1[($mode3 == 1?$batchPos+3:$input1[$batchPos+3])] = 0;
$input1 = setValue($input1, $batchPos+3, 0, $mode3);
}
$batchPos += 4;
}
elseif($opcode == 8){
$debug[] = $batchPos.": ".$input1[$batchPos].", ".$input1[$batchPos+1].", ".$input1[$batchPos+2].", ".$input1[$batchPos+3];
if($input1[($mode1 == 1?$batchPos+1:$input1[$batchPos+1])] == $input1[($mode2 == 1?$batchPos+2:$input1[$batchPos+2])]){
$input1[($mode3 == 1?$batchPos+3:$input1[$batchPos+3])] = 1;
}
else {
$input1[($mode3 == 1?$batchPos+3:$input1[$batchPos+3])] = 0;
}
$batchPos += 4;
}
else {
$debug[] = $batchPos.": Unknown opcode: $input1[$batchPos]";
$output[] = "Unknown opcode: $input1[$batchPos]";
break;
}
}
if(empty($output)){ $output[] = "No outputs. Here is first value: ".$input1[0]; }
if($printDebug && !empty($debug)){
echo "
\nDebug: (Intcode(".'$input'.", ".implode(",",$orgInputs)."))
".implode("
\n", $debug)."
\n"."
";
$debug = [];
}
return implode("
\n", $output);
}
/*
each amp runs an intcode
phase settings, run exactly once
*/
$input = "3,15,3,16,1002,16,10,16,1,16,15,15,4,15,99,0,0";
$input = "3,23,3,24,1002,24,10,24,1002,23,-1,23,101,5,23,23,1,24,23,23,4,23,99,0,0";
$input = "3,31,3,32,1002,32,10,32,1001,31,-2,31,1007,31,0,33,1002,33,7,33,1,33,31,31,1,32,31,31,4,31,99,0,0,0";
$input = file_get_contents("day7.txt");
// echo Intcode($input,13,0);
// die();
$maxThrust = 0;
$lastOutput = 0;
for($a=0;$a<=4;$a++){
for($b=0;$b<=4;$b++){
if($b!=$a){
for($c=0;$c<=4;$c++){
if($c!=$b && $c!=$a){
for($d=0;$d<=4;$d++){
if($d!=$c && $d!=$b && $d!=$a){
for($e=0;$e<=4;$e++){
if($e!=$d && $e!=$c && $e!=$b && $e!=$a){
// if("$a,$b,$c,$d,$e"==="1,0,2,3,4"){ $printDebug=true; }
// else { $printDebug=false; }
//// echo "$a,$b,$c,$d,$e
";
$output = "";
$lastOutput = 0;
foreach(array($a,$b,$c,$d,$e) as $key => $phase){
// echo Intcode($input, $phase);
// echo "Last output: ".$lastOutput."
";
$temp = Intcode($input, [$phase, $lastOutput]);
// echo "
";
// $output .= $temp.",";
$output = $temp;
$lastOutput = $temp;
if(!is_numeric($lastOutput)){
echo "Trying to do ".'Intcode($input, '.$lastOutput.', '."$phase);"."
";
echo "Couldn't continue. lastOutput is not a number: ".$lastOutput."";
break;
}
// $debug[] = "Output: ".$temp;
// $lastOutput = Intcode($input, $lastOutput, $phase);
// echo $lastOutput.",";
// $output += $lastOutput;
}
// $printDebug=false;
// if($a == 1){
// echo $temp;
// break(5);
// }
echo $temp." ($a,$b,$c,$d,$e)
";
if($output > $maxThrust){
$maxThrust = $output;
}
// echo "
\nDebug:
".implode("
\n", $debug)."
\n"."
";
}
}
}
}
}
}
}
}
}
// print_r($out);
echo "Max thruster signal: ".$maxThrust."
";
// 4848201312 : TOO HIGH
// 43012 : TOO LOW
?>