oj.uz

Submission #318936

# Submission time Handle Problem Language Result Execution time Memory
318936 2020-11-03T13:09:22 Z alextodoran Job Scheduling (IOI19_job) C++17
24 / 100
 291 ms 65636 KB 
/**
 ____ ____ ____ ____ ____
||a |||t |||o |||d |||o ||
||__|||__|||__|||__|||__||
|/__\|/__\|/__\|/__\|/__\|

**/

#include <bits/stdc++.h>
#include "job.h"

using namespace std;

typedef long long ll;

const int N_MAX = 200002;

int n;

struct Cost
{
    int d, u;
};

Cost cost[N_MAX];

int parent[N_MAX];

vector <int> sons[N_MAX];

bool operator < (const Cost &a, const Cost &b)
{
    return a.d * b.u < b.d * a.u;
}

struct Node
{
    int u;
    Cost c;
};

bool operator < (const Node &u, const Node &v)
{
    return make_pair(u.c, u.u) > make_pair(v.c, v.u);
}

set <Node> notJoined[N_MAX];

void mergeSets (set <Node> &in, set <Node> &from)
{
    if(in.size() < from.size())
        swap(in, from);
    while(from.empty() == false)
    {
        in.insert(*from.begin());
        from.erase(from.begin());
    }

}

bool isRoot[N_MAX];

void dfs (int u)
{
    for(int v : sons[u])
    {
        dfs(v);
        notJoined[u].insert(Node{v, cost[v]});
    }
    isRoot[u] = true;
    while(notJoined[u].empty() == false)
    {
        int v = notJoined[u].begin()->u;
        if(!(cost[v] < cost[u]))
            break;
        notJoined[u].erase(notJoined[u].begin());
        isRoot[v] = false;
        cost[u].d += cost[v].d;
        cost[u].u += cost[v].u;
        mergeSets(notJoined[u], notJoined[v]);
    }
}

int order[N_MAX];

int curr;

void solveOne (int u)
{
    order[++curr] = u;
    vector <pair <Cost, int> > aux;
    for(int v : sons[u])
        if(isRoot[v] == false)
            aux.push_back(make_pair(cost[v], v));
    sort(aux.begin(), aux.end());
    for(pair <Cost, int> p : aux)
        solveOne(p.second);
}

void solveAll (int u)
{
    solveOne(u);
    vector <int> aux;
    while(notJoined[u].empty() == false)
    {
        int v = notJoined[u].begin()->u;
        notJoined[u].erase(notJoined[u].begin());
        aux.push_back(v);
    }
    reverse(aux.begin(), aux.end());
    for(int v : aux)
        solveAll(v);
}

ll scheduling_cost (vector <int> p, vector <int> u, vector <int> d)
{
    n = p.size();
    for(int i = 1; i <= n; i++)
    {
        parent[i] = p[i - 1] + 1;
        cost[i] = Cost{d[i - 1], u[i - 1]};
    }
    for(int i = 2; i <= n; i++)
        sons[parent[i]].push_back(i);
    dfs(1);
    solveAll(1);
    int currTime = 0;
    ll ans = 0;
    for(int i = 1; i <= n; i++)
    {
        int j = order[i];
        currTime += d[j - 1];
        ans += 1LL * currTime * u[j - 1];
    }
    return ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 10 ms 14444 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 11 ms 14572 KB Output is correct
5 Correct 42 ms 25188 KB Output is correct
6 Correct 73 ms 35940 KB Output is correct
7 Correct 108 ms 46564 KB Output is correct
8 Correct 142 ms 57188 KB Output is correct
9 Correct 139 ms 57112 KB Output is correct
10 Correct 137 ms 57188 KB Output is correct
11 Correct 10 ms 14444 KB Output is correct
12 Correct 142 ms 57316 KB Output is correct
13 Correct 140 ms 57316 KB Output is correct
14 Correct 137 ms 57316 KB Output is correct
15 Correct 144 ms 57604 KB Output is correct
16 Correct 139 ms 57316 KB Output is correct
17 Correct 137 ms 57188 KB Output is correct
18 Correct 139 ms 57188 KB Output is correct
19 Correct 153 ms 63080 KB Output is correct
20 Correct 151 ms 65636 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 10 ms 14444 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 265 ms 36824 KB Output is correct
5 Correct 279 ms 36824 KB Output is correct
6 Correct 281 ms 36692 KB Output is correct
7 Correct 267 ms 36704 KB Output is correct
8 Correct 270 ms 36696 KB Output is correct
9 Correct 265 ms 36700 KB Output is correct
10 Correct 266 ms 36824 KB Output is correct
11 Correct 291 ms 36804 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 10 ms 14444 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 11 ms 14572 KB Output is correct
5 Correct 17 ms 15596 KB Output is correct
6 Correct 254 ms 36764 KB Output is correct
7 Correct 258 ms 36800 KB Output is correct
8 Correct 253 ms 36716 KB Output is correct
9 Correct 253 ms 36696 KB Output is correct
10 Correct 10 ms 14444 KB Output is correct
11 Correct 11 ms 14572 KB Output is correct
12 Correct 16 ms 15468 KB Output is correct
13 Correct 17 ms 15596 KB Output is correct
14 Correct 275 ms 36700 KB Output is correct
15 Correct 250 ms 36696 KB Output is correct
16 Correct 268 ms 36696 KB Output is correct
17 Correct 255 ms 36916 KB Output is correct
18 Correct 258 ms 36624 KB Output is correct
19 Correct 256 ms 36952 KB Output is correct
20 Correct 264 ms 36828 KB Output is correct
21 Correct 262 ms 36696 KB Output is correct
22 Correct 258 ms 36700 KB Output is correct
23 Correct 253 ms 36696 KB Output is correct
24 Correct 251 ms 36696 KB Output is correct

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Incorrect 135 ms 46308 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Incorrect 10 ms 14444 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 14444 KB Output is correct
2 Correct 10 ms 14444 KB Output is correct
3 Correct 10 ms 14444 KB Output is correct
4 Correct 11 ms 14572 KB Output is correct
5 Correct 42 ms 25188 KB Output is correct
6 Correct 73 ms 35940 KB Output is correct
7 Correct 108 ms 46564 KB Output is correct
8 Correct 142 ms 57188 KB Output is correct
9 Correct 139 ms 57112 KB Output is correct
10 Correct 137 ms 57188 KB Output is correct
11 Correct 10 ms 14444 KB Output is correct
12 Correct 142 ms 57316 KB Output is correct
13 Correct 140 ms 57316 KB Output is correct
14 Correct 137 ms 57316 KB Output is correct
15 Correct 144 ms 57604 KB Output is correct
16 Correct 139 ms 57316 KB Output is correct
17 Correct 137 ms 57188 KB Output is correct
18 Correct 139 ms 57188 KB Output is correct
19 Correct 153 ms 63080 KB Output is correct
20 Correct 151 ms 65636 KB Output is correct
21 Correct 10 ms 14444 KB Output is correct
22 Correct 10 ms 14444 KB Output is correct
23 Correct 10 ms 14444 KB Output is correct
24 Correct 265 ms 36824 KB Output is correct
25 Correct 279 ms 36824 KB Output is correct
26 Correct 281 ms 36692 KB Output is correct
27 Correct 267 ms 36704 KB Output is correct
28 Correct 270 ms 36696 KB Output is correct
29 Correct 265 ms 36700 KB Output is correct
30 Correct 266 ms 36824 KB Output is correct
31 Correct 291 ms 36804 KB Output is correct
32 Correct 10 ms 14444 KB Output is correct
33 Correct 10 ms 14444 KB Output is correct
34 Correct 10 ms 14444 KB Output is correct
35 Correct 11 ms 14572 KB Output is correct
36 Correct 17 ms 15596 KB Output is correct
37 Correct 254 ms 36764 KB Output is correct
38 Correct 258 ms 36800 KB Output is correct
39 Correct 253 ms 36716 KB Output is correct
40 Correct 253 ms 36696 KB Output is correct
41 Correct 10 ms 14444 KB Output is correct
42 Correct 11 ms 14572 KB Output is correct
43 Correct 16 ms 15468 KB Output is correct
44 Correct 17 ms 15596 KB Output is correct
45 Correct 275 ms 36700 KB Output is correct
46 Correct 250 ms 36696 KB Output is correct
47 Correct 268 ms 36696 KB Output is correct
48 Correct 255 ms 36916 KB Output is correct
49 Correct 258 ms 36624 KB Output is correct
50 Correct 256 ms 36952 KB Output is correct
51 Correct 264 ms 36828 KB Output is correct
52 Correct 262 ms 36696 KB Output is correct
53 Correct 258 ms 36700 KB Output is correct
54 Correct 253 ms 36696 KB Output is correct
55 Correct 251 ms 36696 KB Output is correct
56 Correct 10 ms 14444 KB Output is correct
57 Incorrect 135 ms 46308 KB Output isn't correct
58 Halted 0 ms 0 KB -