公鸡3元每只，母鸡5元每只，小鸡1元3只，一百元钱买一百只鸡，请用伪代码写出求公鸡，母鸡和小鸡的数目...

for($y=0;$y<=20;$y++){

       for($x=0;$x<=(100/3);$x++){

              for($z=0;$z<=100;$z++){

                     if($x+$y+$z==100 && (($x*3)+($y*5)+($z/3))==100){

                            echo$x.":".$y.":".$z."<br>";

                     }

              }

       }

}

转载于:https://www.cnblogs.com/dai-idiot/p/4630658.html