ข้อ 2
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<?php
// 64160267 kanokpol promtha
// DiagonalDifference
function exam02($arry){
$arrDiag = count($arry);
//ซ้าย
$firstD = 0;
// ขวา
$secondD = 0;
$i = 0;
for($j = 0; $j < $arrDiag; $j++){
$firstD += $arry[$i++][$j];
$secondD += $arry[$arrDiag - $i][$j];
}
// ซ่าย - ขวา
return abs($firstD - $secondD);
}
function test_01(){
if(exam02([[1,2],[3,4]]) == 0){
echo "pass";
} else {
echo "fail";
}
if(exam02([[1,2,4],
[4,5,9],
[7,8,9]]) == 1){
echo "pass";
} else {
echo "fail";
}
}
test_01();
Php
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