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question

given an array of integers, returnindicesof the two numbers such that they add up to a specific target.

you may assume that each input woul疯狂原始人影评d haveexactlyone solut党员评议自我鉴定ion, and you may not 小学寒假u thesameelement twice.

idp个人发展计划example:

given nums = [2, 7, 11, 15], target = 9,becau nums[0] + nums[1] = 2 + 7 = 9,return [0, 1].

answer

 1 class solution { 2  3     /** 4      * @param integer[] $nums 5      * @param integer $target 6      * @return integer[] 7      */ 8     public function twosum($nums, $target) { 9         $res = [];10         for($i=0; $i<count($nums); $i++) {11             for($j=$i+1; $j<count($nums); $j++) {12                 if($nums[摘抄大全好词好句好段$i]+$nums[$j] === $target) {13                     array_push($res, $i);14                     array_push($res, $j);15                 } el {16                     continue;17                 }18             }19         }20         return $res;21     }22 }

这是我想到的方案，the least efficient solution.