day01a.cpp (364B)
1 #include <iostream> 2 #include <algorithm> 3 #include <vector> 4 using namespace std; 5 6 int main() { 7 int x, y, tot; 8 vector<int> v, w; 9 10 while (cin >> x >> y) { 11 v.push_back(x); 12 w.push_back(y); 13 } 14 15 sort(v.begin(), v.end()); 16 sort(w.begin(), w.end()); 17 18 tot = 0; 19 for (unsigned i = 0; i < v.size(); i++) 20 tot += abs(v[i] - w[i]); 21 22 cout << tot << endl; 23 return 0; 24 }