CSES - Datatähti 2023 alku - Results
Submission details
Task:Sadonkorjuu
Sender:okkokko
Submission time:2022-11-11 16:34:41 +0200
Language:C++ (C++11)
Status:READY
Result:33
Feedback
groupverdictscore
#1ACCEPTED33
#20
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2details
#2ACCEPTED0.00 s1, 2details
#3ACCEPTED0.00 s1, 2details
#4ACCEPTED0.00 s1, 2details
#5ACCEPTED0.00 s1, 2details
#6ACCEPTED0.01 s1, 2details
#7ACCEPTED0.42 s2details
#8ACCEPTED0.01 s1, 2details
#9ACCEPTED0.38 s2details
#10ACCEPTED0.01 s1, 2details
#11ACCEPTED0.38 s2details
#120.29 s2details
#13ACCEPTED0.31 s2details
#14ACCEPTED0.29 s2details
#15ACCEPTED0.01 s1, 2details
#16ACCEPTED0.01 s1, 2details
#17ACCEPTED0.01 s1, 2details
#18ACCEPTED0.01 s1, 2details
#19ACCEPTED0.01 s1, 2details
#20ACCEPTED0.01 s1, 2details
#21ACCEPTED0.29 s2details
#22ACCEPTED0.28 s2details
#23ACCEPTED0.29 s2details
#24ACCEPTED0.01 s1, 2details
#25ACCEPTED0.29 s2details
#26ACCEPTED0.01 s1, 2details
#27ACCEPTED0.27 s2details
#28ACCEPTED0.01 s1, 2details
#29ACCEPTED0.27 s2details
#30ACCEPTED0.01 s1, 2details
#31ACCEPTED0.28 s2details

Code

#include <iostream>
#include <vector>
#include <map>
using namespace std;

vector<int> cities;
vector<map<int, int>> connections;
/* see if you can determine how much length is reduced when a child is shortened*/
class Node
{
public:
    bool is_root;
    Node *parent;
    vector<Node> children;
    int distance;
    int city_type;
    int id;
    int closest;
    bool closest_is_infinity;
    bool checked;
    uint marker = 0;
    Node()
    {
    }
    Node(Node &parent_, bool is_root_, int id_, int distance_, int city_type_)
    {
        is_root = is_root_;
        parent = &parent_;
        id = id_;
        distance = distance_;
        city_type = city_type_;
        closest = 1000 * city_type;
        closest_is_infinity = city_type_;
        checked = false;
    }
    void form_children()
    {
        map<int, int>::iterator itr;
        for (itr = connections[id].begin(); itr != connections[id].end(); ++itr)
        {
            if (itr->first != parent->id)
            {
                children.push_back(Node(*this, false, itr->first, itr->second, (int)(cities[itr->first])));
            }
        }
    }
    Node *next()
    {
        if (marker < children.size())
        {
            marker += 1;
            return &(children[marker - 1]);
        }
        else
        {
            marker = 0;
            return parent;
        }
    }
};

int main()
{
    int n;
    cin >> n;
    cities.reserve(n);
    connections = vector<map<int, int>>(n);
    int a, b, c;
    for (int i = 0; i < n; i++)
    {
        cin >> a;
        cities.push_back(a);
    }

    for (int i = 0; i < n - 1; i++)
    {
        cin >> a >> b >> c;
        connections[a - 1][b - 1] = c;
        connections[b - 1][a - 1] = c;
    }
    Node ghost;
    Node head = Node(ghost, true, 0, 0, cities[0]);
    Node *city = &head;
    city->form_children();
    Node *neue;
    while (city != &ghost)
    {
        neue = city->next();
        if (neue == &ghost)
        {
            break;
        }
        if (city->marker == 0)
        {
            if ((!city->closest_is_infinity) and (neue->closest_is_infinity or (neue->closest > city->closest + city->distance)))
            {
                neue->closest = city->closest + city->distance;
                neue->closest_is_infinity = false;
                neue->marker = 0;
            }
            city = neue;
        }
        else
        {

            if ((!city->closest_is_infinity) and (neue->closest_is_infinity or (neue->closest > city->closest + neue->distance)))
            {
                neue->closest = city->closest + neue->distance;
                neue->closest_is_infinity = false;
                city = neue;
            }
            if (!neue->checked)
            {
                neue->checked = true;
                city = neue;
                city->form_children();
            }
        }
    }

    int total = 0;
    city = &head;
    while (city != &ghost)
    {
        neue = city->next();
        if (city->marker == 0)
        {
            total += city->closest;
        }
        city = neue;
    }
    cout << total << "\n";

    return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
1
0

correct output
0

user output
0

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
5
0 0 0 0 0
1 2 1
2 3 2
3 4 3
...

correct output
0

user output
0

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
4
1 0 1 1
1 2 10
2 3 20
2 4 30

correct output
60

user output
60

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
5
0 1 1 1 0
1 2 10
2 3 20
3 4 30
...

correct output
80

user output
80

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
5
0 1 0 1 1
1 2 1
2 3 5
3 4 3
...

correct output
6

user output
6

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5506363

user output
5506363

Test 7

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1795118520

user output
1795118520

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 0 1 0 1 1 0 1 0 1 1 0 0 0 1 ...

correct output
293576

user output
293576

Test 9

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
816932444

user output
816932444

Test 10

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
3089

user output
3089

Test 11

Group: 2

Verdict: ACCEPTED

input
200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
40839

user output
40839

Test 12

Group: 2

Verdict:

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
5683983203973

user output
1741471365

Test 13

Group: 2

Verdict: ACCEPTED

input
200000
0 1 1 1 1 1 1 0 0 0 1 1 0 1 0 ...

correct output
58572993

user output
58572993

Test 14

Group: 2

Verdict: ACCEPTED

input
200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
32755

user output
32755

Test 15

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
126238345

user output
126238345

Test 16

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 0 0 1 0 1 1 1 0 0 1 0 1 1 0 ...

correct output
278678

user output
278678

Test 17

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 0 0 0 1 0 0 0 1 0 0 0 0 0 0 ...

correct output
34929

user output
34929

Test 18

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1543963

user output
1543963

Test 19

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
39606

user output
39606

Test 20

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 0 1 0 1 0 0 0 0 1 1 0 0 0 1 ...

correct output
321598

user output
321598

Test 21

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
978670626

user output
978670626

Test 22

Group: 2

Verdict: ACCEPTED

input
200000
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ...

correct output
375218

user output
375218

Test 23

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 0 0 0 0 0 1 0 1 0 1 1 ...

correct output
60422556

user output
60422556

Test 24

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
291990

user output
291990

Test 25

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
59607954

user output
59607954

Test 26

Group: 1, 2

Verdict: ACCEPTED

input
1000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
990

user output
990

Test 27

Group: 2

Verdict: ACCEPTED

input
200000
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
199982

user output
199982

Test 28

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
7987

user output
7987

Test 29

Group: 2

Verdict: ACCEPTED

input
200000
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
3137875

user output
3137875

Test 30

Group: 1, 2

Verdict: ACCEPTED

input
1000
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
4657693

user output
4657693

Test 31

Group: 2

Verdict: ACCEPTED

input
200000
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
1652889357

user output
1652889357