从扑克牌中随机抽取5张牌,判断是不是一个顺子,即这5张牌是不是连续的2-10位数字本身,A为1,J为11,Q为12,K为13,而大小王可以看成任意数字
function isStraight($num1, $num2, $num3, $num4, $num5){ $startNumArr = [$num1, $num2, $num3, $num4, $num5]; $numCountStatic = array_count_values($startNumArr); $zeroCount = 0; foreach ($numCountStatic as $num => $count) { if ($num === 0) { if ($count > 2) { return false; } $zeroCount = $count; } else if ($count>1) { return false; //这里有个歧义,不考虑重复数字不影响顺子组成的话,去掉该判断 } else if ($num > 13){ return false; } } $uniqNumArr = array_unique($startNumArr); sort($uniqNumArr); if ($uniqNumArr['0'] === 0) { array_shift($uniqNumArr); } return(count($uniqNumArr)+$zeroCount-1 >= max($uniqNumArr)-min($uniqNumArr)); } var_dump(isStraight(6,3,7,4,5)); var_dump(isStraight(6,3,7,4,5));
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