#include "job.h" #include <vector> #include <algorithm> using namespace std; struct job { int u; int d; }; bool operator < (job A, job B) { return A.d*B.u < B.d*A.u; } long long scheduling_cost(vector<int> p, vector<int> u, vector<int> d) { long long res = 0; int n = p.size(); res += u[0] * d[0]; job J[n-1]; for(int i = 1; i < n; i++) J[i-1] = job{u[i], d[i]}; sort(J, J+n-1); long long t = d[0]; for(int i = 0; i < n; i++) { t += J[i].d; res += t * J[i].u; } return res; }