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Datatähti 2026 alku

Hypyt

  • Start: 2025-10-27 00:00:00
  • End: 2025-11-10 00:00:00
Submission details
Task:Hypyt
Sender:Lytsky
Submission time:2025-11-05 15:35:22 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
#40
#50
Test results
testverdicttimegroup
#10.00 s1, 2, 3, 4, 5details
#20.00 s1, 2, 3, 4, 5details
#30.00 s1, 2, 3, 4, 5details
#40.00 s1, 2, 3, 4, 5details
#50.00 s1, 2, 3, 4, 5details
#60.01 s2, 5details
#70.01 s2, 5details
#80.01 s2, 5details
#90.00 s3, 4, 5details
#100.00 s3, 4, 5details
#110.00 s3, 4, 5details
#120.00 s4, 5details
#130.00 s4, 5details
#140.00 s4, 5details
#150.01 s5details
#160.01 s5details
#170.01 s5details
#180.01 s5details
#190.01 s5details
#200.01 s5details
#210.01 s5details
#220.00 s1, 2, 3, 4, 5details
#230.00 s1, 2, 3, 4, 5details
#240.01 s5details
#250.00 s5details
#260.01 s5details
#270.01 s5details

Code

#include <bits/stdc++.h>
 
using namespace std;
 
bool contains(vector<int> v, int num) {
    for (auto i : v) {
        if (i == num) {
            return true;
        }
    }
    return false;
}
 
int main() {
    int n, m, q, ekay, ekax, tokay, tokax;
    string row;
    cin >> n >> m >> q;
    vector<string> grid;
    vector<int> nodesInColumns[m];
    vector<vector<pair<int, pair<vector<int>, vector<int>>>>> row_kaaret(n);
    vector<vector<pair<int, vector<pair<vector<int>,vector<int>>>>>> d(n);
    for (int index = 0; index < n; index++) {
        vector<pair<int,pair<vector<int>,vector<int>>>> v(n, {0, {}});
        row_kaaret[index] = v;
        vector<pair<int, vector<pair<vector<int>,vector<int>>>>> j(n);
        d[index] = j;
    }
    vector<vector<vector<vector<int>>>> answers;
    for (int index = 0; index < n; index++) {
        for (int jndex = index; jndex < n; jndex++) {
            for (int i = 0; i < m; i++) {
                for (int j = i; j < m; j++) {
                    answers[index][jndex][i][j] = -2;
                }
            }
        }
    }

    for (int index = 0; index < n; index++) {
        cin >> row;
        grid.push_back(row);
        for (int col = 0; col < m; col++) {
            if (grid[index][col] == '.') {
                nodesInColumns[col].push_back(index);
            }
        }
    }
    for (int index = 0; index < m; index++) {
        for (auto node : nodesInColumns[index]) {
            for (auto node2 : nodesInColumns[index]) {
                if (node < node2) {
                    row_kaaret[node][node2].first = 1;
                    row_kaaret[node][node2].second.first.push_back(index);
                    row_kaaret[node][node2].second.second.push_back(index);
                }
            }
        }
    }
    //floyd
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (i == j) d[i][j].first = 0;
            else if (i < j && row_kaaret[i][j].first != 0) {
                d[i][j].first = row_kaaret[i][j].first;
                pair<vector<int>,vector<int>> p = row_kaaret[i][j].second;
                d[i][j].second.push_back(p);
            }
            else d[i][j].first = 1e9;
        }
    }
    for (int k = 0; k < n; k++) {
        for (int i = 0; i < n; i++) {
            for (int j = i; j < n; j++) {
                if (d[i][j].first > d[min(i,k)][max(i,k)].first + d[min(k,j)][max(k,j)].first) {
                    d[i][j].first = d[min(i,k)][max(i,k)].first + d[min(k,j)][max(k,j)].first;
                    if (i < k) row_kaaret[i][j].second.first = row_kaaret[i][k].second.first;
                    else row_kaaret[i][j].second.first = row_kaaret[k][i].second.second;
                    if (k < j) row_kaaret[i][j].second.second = row_kaaret[k][j].second.second;
                    else row_kaaret[i][j].second.second = row_kaaret[j][k].second.first;
                    pair<vector<int>,vector<int>> p;
                    if (i < k) p.first = row_kaaret[i][k].second.first;
                    else p.first = row_kaaret[k][i].second.second;
                    if (k < j) p.second = row_kaaret[k][j].second.second;
                    else p.second = row_kaaret[j][k].second.first;
                    d[i][j].second.clear();
                    if ((int) p.first.size() != 0 && (int) p.second.size() != 0) d[i][j].second.push_back(p);
                } else if (d[i][j].first == d[min(i,k)][max(i,k)].first + d[min(k,j)][max(k,j)].first) {
                    if (i < k) row_kaaret[i][j].second.first.insert(row_kaaret[i][j].second.first.end(), row_kaaret[i][k].second.first.begin(), row_kaaret[i][k].second.first.end());
                    else row_kaaret[i][j].second.first.insert(row_kaaret[i][j].second.first.end(), row_kaaret[k][i].second.second.begin(), row_kaaret[k][i].second.second.end());
                    if (k < j) row_kaaret[i][j].second.second.insert(row_kaaret[i][j].second.second.end(), row_kaaret[k][j].second.second.begin(), row_kaaret[k][j].second.second.end());
                    else row_kaaret[i][j].second.second.insert(row_kaaret[i][j].second.second.end(), row_kaaret[j][k].second.first.begin(), row_kaaret[j][k].second.first.end());
                    pair<vector<int>,vector<int>> p;
                    if (i < k) p.first = row_kaaret[i][k].second.first;
                    else p.first = row_kaaret[k][i].second.second;
                    if (k < j) p.second = row_kaaret[k][j].second.second;
                    else p.second = row_kaaret[j][k].second.first;
                    if ((int) p.first.size() != 0 && (int) p.second.size() != 0) d[i][j].second.push_back(p);
                }
            }
        }
    }
    //kyselyt
    for (int index = 0; index < q; index++) {
        cin >> ekay >> ekax >> tokay >> tokax;
        int y1 = tokay;
        int y2 = ekay;
        int x1 = tokax;
        int x2 = ekax;
        if (ekay < tokay) {
            y1 = ekay;
            y2 = tokay;
            x1 = ekax;
            x2 = tokax;
        }
        if (y1 == y2 && x1 == x2) cout << 0 << endl;
        else if (y1 == y2 || x1 == x2) cout << 1 << endl;
        else {
            pair<int, vector<pair<vector<int>,vector<int>>>> dist = d[y1-1][y2-1];
            if (dist.first >= 1e9) cout << -1 << endl;
            //else if (answers[y1-1][y2-1][x1-1][x2-1] != -2) cout << answers[y1-1][y2-1][x1-1][x2-1] << endl; 
            else {
                if (dist.first == 1) {
                    vector<int> v = row_kaaret[y1-1][y2-1].second.first;
                    vector<int> v2 = row_kaaret[y1-1][y2-1].second.second;
                    bool c1 = contains(v,x1-1);
                    bool c2 = contains(v2,x2-1);
                    if (c1 != false || c2 != false) {
                        cout << dist.first + dist.first-1 + 1 << endl;
                        //answers[y1-1][y2-1][x1-1][x2-1] = dist.first + dist.first-1 + 1;
                    }
                    else if (c1 == false && c2 == false) {
                        cout << dist.first + dist.first-1 + 2 << endl;
                        //answers[y1-1][y2-1][x1-1][x2-1] = dist.first + dist.first-1 + 2;
                    }
                } else {
                    int a = 0, b = 0;
                    for (auto pset : dist.second) {
                        bool s1 = contains(pset.first,x1-1);
                        if (s1) {
                            bool s2 = contains(pset.second, x2-1);
                            if (s2) {
                                a = 1;
                                break;
                            } 
                            b = 1;
                        } else if (b == 0) {
                            bool s2 = contains(pset.second, x2-1);
                            if (s2) b = 1;
                        }
                    }
                    if (a == 1) {
                        cout << dist.first + dist.first-1 << endl;
                        //answers[y1-1][y2-1][x1-1][x2-1] = dist.first + dist.first-1;
                    }
                    else if (b == 1) {
                        cout << dist.first + dist.first-1 + 1 << endl;
                        //answers[y1-1][y2-1][x1-1][x2-1] = dist.first + dist.first-1 + 1;
                    }
                    else {
                        cout << dist.first + dist.first-1 + 2 << endl;
                        //answers[y1-1][y2-1][x1-1][x2-1] = dist.first + dist.first-1 + 2;
                    }
                }
            }
        }
    }
}

Test details

Test 1 (public)

Group: 1, 2, 3, 4, 5

Verdict:

input
4 6 5
.*.***
*...**
*****.
*..*.*
...
view save

correct output
1
0
3
3
-1
view save

user output
(empty)

Test 2

Group: 1, 2, 3, 4, 5

Verdict:

input
10 10 10
..........
.....*....
........*.
*.*....*..
...
view save

correct output
1
2
1
2
2
...
view save

user output
(empty)

Test 3

Group: 1, 2, 3, 4, 5

Verdict:

input
10 10 10
*...***.**
*****.*...
**..**.**.
..**.**.*.
...
view save

correct output
1
2
2
1
2
...
view save

user output
(empty)

Test 4

Group: 1, 2, 3, 4, 5

Verdict:

input
10 10 10
***.*.****
**********
*.********
.*.***.**.
...
view save

correct output
3
4
2
3
4
...
view save

user output
(empty)

Test 5

Group: 1, 2, 3, 4, 5

Verdict:

input
10 10 1
.****.****
**.**..***
**********
*******..*
...
view save

correct output
7
view save

user output
(empty)

Test 6

Group: 2, 5

Verdict:

input
250 250 250
.*...*.....*******..**...*.......
view save

correct output
2
3
3
2
2
...
view save

user output
(empty)

Test 7

Group: 2, 5

Verdict:

input
250 250 250
...*......**.**.*.*..**..*..**...
view save

correct output
2
2
2
2
3
...
view save

user output
(empty)

Test 8

Group: 2, 5

Verdict:

input
250 250 250
**..**..****.****.*.***.***..*...
view save

correct output
2
3
3
3
3
...
view save

user output
(empty)

Test 9

Group: 3, 4, 5

Verdict:

input
40 40 200000
...*.**.*..*.............*.*.....
view save

correct output
2
2
2
2
2
...
view save

user output
(empty)

Test 10

Group: 3, 4, 5

Verdict:

input
40 40 200000
**.**..*.*.*.******....****.*....
view save

correct output
2
1
3
2
2
...
view save

user output
(empty)

Test 11

Group: 3, 4, 5

Verdict:

input
40 40 200000
.*.*.**.*****.***.*.****.**.**...
view save

correct output
3
3
3
3
3
...
view save

user output
(empty)

Test 12

Group: 4, 5

Verdict:

input
80 80 200000
*....**.***..****...*.....*......
view save

correct output
2
2
2
2
2
...
view save

user output
(empty)

Test 13

Group: 4, 5

Verdict:

input
80 80 200000
.***.*..*.***..*****....**...*...
view save

correct output
3
2
2
3
2
...
view save

user output
(empty)

Test 14

Group: 4, 5

Verdict:

input
80 80 200000
*******.*****.*..*..****...***...
view save

correct output
2
3
1
2
2
...
view save

user output
(empty)

Test 15

Group: 5

Verdict:

input
250 250 200000
*....*..*..*..**..*.........**...
view save

correct output
3
2
2
2
2
...
view save

user output
(empty)

Test 16

Group: 5

Verdict:

input
250 250 200000
..*....*..*......*.**.*.*..***...
view save

correct output
2
2
2
2
2
...
view save

user output
(empty)

Test 17

Group: 5

Verdict:

input
250 250 200000
*..*.*****.*********.****.****...
view save

correct output
3
3
2
2
2
...
view save

user output
(empty)

Test 18

Group: 5

Verdict:

input
250 250 200000
*********.**********.******.**...
view save

correct output
3
3
3
3
3
...
view save

user output
(empty)

Test 19

Group: 5

Verdict:

input
250 250 200000
.*****************************...
view save

correct output
104
422
145
93
65
...
view save

user output
(empty)

Test 20

Group: 5

Verdict:

input
250 250 200000
..****************************...
view save

correct output
57
155
38
65
98
...
view save

user output
(empty)

Test 21

Group: 5

Verdict:

input
250 250 200000
.*****************************...
view save

correct output
498
498
498
498
498
...
view save

user output
(empty)

Test 22

Group: 1, 2, 3, 4, 5

Verdict:

input
10 1 10
*
*
.
*
...
view save

correct output
0
1
1
0
0
...
view save

user output
(empty)

Test 23

Group: 1, 2, 3, 4, 5

Verdict:

input
1 10 10
........*.
1 7 1 10
1 4 1 7
1 5 1 1
...
view save

correct output
1
1
1
1
1
...
view save

user output
(empty)

Test 24

Group: 5

Verdict:

input
250 1 200000
*
.
*
.
...
view save

correct output
1
1
1
1
1
...
view save

user output
(empty)

Test 25

Group: 5

Verdict:

input
1 250 200000
*.*.*...*.*.**.***..**.*.*..**...
view save

correct output
1
1
1
1
1
...
view save

user output
(empty)

Test 26

Group: 5

Verdict:

input
250 250 200000
.................................
view save

correct output
2
2
2
2
2
...
view save

user output
(empty)

Test 27

Group: 5

Verdict:

input
250 250 200000
******************************...
view save

correct output
0
0
0
0
0
...
view save

user output
(empty)

Tasks

A Palindromi-B Monikulmio-C Tulkki-D Maalaus-E Hypyt-F Lukujono-

Submissions (Lytsky)

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