Submission #865830

#	Time	Username	Problem	Language	Result	Execution time	Memory
865830		SorahISA	Job Scheduling (IOI19_job)	C++17	0 / 100	3086 ms	9008 KiB

job

#include "job.h"
#include <bits/stdc++.h>
using namespace std;

using int64 = long long;

int64 scheduling_cost(vector<int> p, vector<int> u, vector<int> d) {
    int N = p.size();
    vector<int> alive(N, 1);
    
    int64 tim = 0, ans = 0;
    for (int _round = 0; _round < N; ++_round) {
        
        int id = -1;
        for (int i = 0; i < N; ++i) {
            if (alive[i] and (id == -1 or d[i] * u[id] < d[id] * u[i])) id = i;
        }
        
        if (p[id] == -1) {
            tim += d[id];
            ans += u[id] * tim;
        }
        else {
            ans -= d[id] * u[p[id]];
            d[p[id]] += d[id];
            u[p[id]] += u[id];
        }
        alive[id] = 0;
        
        for (int i = 0; i < N; ++i) {
            if (p[i] == id) p[i] = p[id];
        }
    }
    
    return ans;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 12
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 37