내 풀이 #include #include using namespace std; int solution(vector nums) { int answer = 0; vector check; check.push_back(0); for(int i = 0 ; i < nums.size(); i++) { for(int j = 0 ; j < check.size() ; j ++){ if(nums[i] == check[j]) { break; } if(j==check.size()-1) { check.push_back(nums[i]); cout