#include <iostream> #include <vector> #include <algorithm> using namespace std; int main() { int m, n; cin >> m >> n; vector<int> def(m); vector<int> atk(n); for (int i = 0; i < m; i++) cin >> def[i]; for (int i = 0; i < n; i++) cin >> atk[i]; sort(def.begin(), def.end()); sort(atk.begin(), atk.end()); int i = 0, j = 0; long long damage = 0; while (i < m && j < n) { // 能破防就用这个攻击破掉这个防御 if (atk[j] > def[i]) { i++; j++; } else { // 不能破防，直接算伤害 damage += atk[j]; j++; } } // 剩下所有攻击都打本体 while (j < n) { damage += atk[j]; j++; } cout << damage << endl; return 0; }