1940 주몽 문제풀이 #include #include #include using namespace std; void fast_io(void) { ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); } int n, m,res; vector arr; int main(void) { fast_io(); cin >> n >> m; arr.resize(n); int l = 0, r = n - 1; for (int i = 0; i > arr[i]; sort(arr.begin(), arr.end()); while (l m) r--; else if (arr[l] + arr[r] < m) l++; } cout