[코테강의/JS] 합이 같은 부분집합

function solution(arr){
                let answer="NO", flag=0;
                let total=arr.reduce((a, b)=>a+b, 0);
                let n=arr.length;
                function DFS(L, sum){
                    if(flag) return;
                    if(L===n){
                        if((total-sum)===sum){
                            answer="YES";
                            flag=1;
                        }
                    }
                    else{
                        DFS(L+1, sum+arr[L]);
                        DFS(L+1, sum);
                    }
                }
                DFS(0, 0);
                return answer;
            }

            let arr=[1, 3, 5, 6, 7, 10];
            console.log(solution(arr));