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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:2025-11-08 16:26:07 +0200
Language:C++ (C++11)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED10
#2ACCEPTED20
#3ACCEPTED15
#4ACCEPTED15
#5ACCEPTED40
Test results
testverdicttimegroup
#1ACCEPTED0.00 s1, 2, 3, 4, 5details
#2ACCEPTED0.00 s1, 2, 3, 4, 5details
#3ACCEPTED0.00 s1, 2, 3, 4, 5details
#4ACCEPTED0.00 s1, 2, 3, 4, 5details
#5ACCEPTED0.00 s1, 2, 3, 4, 5details
#6ACCEPTED0.05 s2, 5details
#7ACCEPTED0.05 s2, 5details
#8ACCEPTED0.05 s2, 5details
#9ACCEPTED0.08 s3, 4, 5details
#10ACCEPTED0.08 s3, 4, 5details
#11ACCEPTED0.08 s3, 4, 5details
#12ACCEPTED0.08 s4, 5details
#13ACCEPTED0.08 s4, 5details
#14ACCEPTED0.08 s4, 5details
#15ACCEPTED0.14 s5details
#16ACCEPTED0.14 s5details
#17ACCEPTED0.14 s5details
#18ACCEPTED0.25 s5details
#19ACCEPTED0.15 s5details
#20ACCEPTED0.17 s5details
#21ACCEPTED0.12 s5details
#22ACCEPTED0.00 s1, 2, 3, 4, 5details
#23ACCEPTED0.00 s1, 2, 3, 4, 5details
#24ACCEPTED0.11 s5details
#25ACCEPTED0.07 s5details
#26ACCEPTED0.14 s5details
#27ACCEPTED0.11 s5details

Code

#include <vector>
#include <bitset>
#include <string>
#include <iostream>
 
using namespace std;
 
int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n, m, q, ekay, ekax, tokay, tokax;
    string row;
    cin >> n >> m >> q;
    string grid[n];
    pair<bitset<250>, bitset<250>> row_kaaret[n][n];
    pair<int, vector<pair<bitset<250>,bitset<250>>>> d[n][n];
    string answers;
    bitset<250> bitgrid[n];
 
    for (int index = 0; index < n; index++) {
        cin >> row;
        grid[index] = row;
        for (int col = 0; col < m; col++) {
            if (grid[index][col] == '.') {
                bitgrid[index].set(col);
            }
        }
    }
    for (int j = 0; j < n; j++) { 
        for (int i = j+1; i < n; i++) {
            if ((bitgrid[j] & bitgrid[i]).any()) {
                pair<bitset<250>, bitset<250>> p = {bitgrid[i],bitgrid[j]};
                row_kaaret[j][i] = p;
                d[j][i].second.push_back(p);
                d[j][i].first = 1;
            }
        }
    }
    for (int i = 0; i < n; i++) {
        for (int index = i+1; index < n; index++) {
            if (d[i][index].first != 1) {
                d[i][index].first = 1e9;
            }
        }
    }//floyd
    for (int k = 0; k < n; k++) {
        for (int i = 0; i < n; i++) {
            for (int j = i+1; j < n; j++) {
                if (d[i][j].first == d[min(i,k)][max(i,k)].first + d[min(k,j)][max(k,j)].first) {
                    pair<bitset<250>,bitset<250>> p;
                    if (i < k) {
                        row_kaaret[i][j].first = row_kaaret[i][j].first | row_kaaret[i][k].first;
                        p.first = row_kaaret[i][k].first;
                    }
                    else {
                        row_kaaret[i][j].first = row_kaaret[i][j].first | row_kaaret[k][i].second;
                        p.first = row_kaaret[k][i].second;
                    }
                    if (k < j) {
                        row_kaaret[i][j].second = row_kaaret[i][j].second | row_kaaret[k][j].second;
                        p.second = row_kaaret[k][j].second;
                    }
                    else {
                        row_kaaret[i][j].second = row_kaaret[i][j].second | row_kaaret[j][k].first;
                        p.second = row_kaaret[j][k].first;
                    }
                    //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) {
                    d[i][j].first = d[min(i,k)][max(i,k)].first + d[min(k,j)][max(k,j)].first;
                    pair<bitset<250>,bitset<250>> p;
                    if (i < k) {
                        row_kaaret[i][j].first = row_kaaret[i][k].first;
                        p.first = row_kaaret[i][k].first;
                    }
                    else {
                        row_kaaret[i][j].first = row_kaaret[k][i].second;
                        p.first = row_kaaret[k][i].second;
                    }
                    if (k < j) {
                        row_kaaret[i][j].second = row_kaaret[k][j].second;
                        p.second = row_kaaret[k][j].second;
                    }
                    else {
                        row_kaaret[i][j].second = row_kaaret[j][k].first;
                        p.second = row_kaaret[j][k].first;
                    }
                    d[i][j].second.clear();
                    //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, y2, x1, x2;
        if (ekay < tokay) {
            y1 = ekay;
            y2 = tokay;
            x1 = ekax;
            x2 = tokax;
        } else {
            y1 = tokay;
            y2 = ekay;
            x1 = tokax;
            x2 = ekax;
        }
        bitset<250> bitrow1;
        bitset<250> bitrow2;
        bitrow1.set(x1-1);
        bitrow2.set(x2-1);
        if (y1 == y2 && x1 == x2) answers += "0\n";
        else if (y1 == y2 || x1 == x2) answers += "1\n";
        else {
            if (d[y1-1][y2-1].first >= 1e9) answers += "-1\n";
            else {
                if (d[y1-1][y2-1].first == 1) {
                    bool c1 = false;
                    if ((row_kaaret[y1-1][y2-1].first & bitrow1).any()) c1 = true;
                    /*for (auto y : row_kaaret[y1-1][y2-1].first) {
                        if (grid[y][x1-1] == '.') {
                            c1 = true;
                            break;
                        }
                    }*/
                    bool c2 = false;
                    if ((row_kaaret[y1-1][y2-1].second & bitrow2).any()) c2 = true;
                    /*for (auto y : row_kaaret[y1-1][y2-1].second) {
                        if (grid[y][x2-1] == '.') {
                            c2 = true;
                            break;
                        }
                    }*/
                    if ((c1 != false || c2 != false)) answers += to_string(d[y1-1][y2-1].first + d[y1-1][y2-1].first-1 + 1) + '\n';
                    else if (c1 == false && c2 == false) answers += to_string(d[y1-1][y2-1].first + d[y1-1][y2-1].first-1 + 2) + '\n';
                } else {
                    pair<int, vector<pair<bitset<250>,bitset<250>>>> dist = d[y1-1][y2-1];
                    int a = 0, b = 0;
                    for (auto pset : dist.second) {
                        bool s1 = false;
                        if ((pset.first & bitrow1).any()) s1 = true;
                        /*for (auto y : pset.first) {
                            if (grid[y][x1-1] == '.') {
                                s1 = true;
                                break;
                            }
                        }*/
                        if (s1) {
                            bool s2 = false;
                            if ((pset.second & bitrow2).any()) s2 = true;
                            /*for (auto y : pset.second) {
                                if (grid[y][x2-1] == '.') {
                                    s2 = true;
                                    break;
                                }
                            }*/
                            if (s2) {
                                a = 1;
                                break;
                            } 
                            b = 1;
                        } else if (b == 0) {
                            if ((pset.second & bitrow2).any()) b = 1;
                            /*for (auto y : pset.second) {
                                if (grid[y][x2-1] == '.') {
                                    b = 1;
                                    break;
                                }
                            }*/
                        }
                    }
                    if (a == 1) answers += to_string(dist.first + dist.first-1) + '\n';
                    else if (b == 1) answers += to_string(dist.first + dist.first-1 + 1) + '\n';
                    else answers += to_string(dist.first + dist.first-1 + 2) + '\n';
                }
            }
        }
    }
    printf("%s", answers.c_str());
}

Test details

Test 1 (public)

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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

correct output
1
0
3
3
-1
view save

user output
1
0
3
3
-1
view save

Test 2

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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

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

user output
1
2
1
2
2
...
view save

Test 3

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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

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

user output
1
2
2
1
2
...
view save

Test 4

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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

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

user output
3
4
2
3
4
...
view save

Test 5

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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

correct output
7
view save

user output
7
view save

Test 6

Group: 2, 5

Verdict: ACCEPTED

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

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

user output
2
3
3
2
2
...
view save

Test 7

Group: 2, 5

Verdict: ACCEPTED

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

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

user output
2
2
2
2
3
...
view save

Test 8

Group: 2, 5

Verdict: ACCEPTED

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

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

user output
2
3
3
3
3
...
view save

Test 9

Group: 3, 4, 5

Verdict: ACCEPTED

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

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

user output
2
2
2
2
2
...
view save

Test 10

Group: 3, 4, 5

Verdict: ACCEPTED

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

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

user output
2
1
3
2
2
...
view save

Test 11

Group: 3, 4, 5

Verdict: ACCEPTED

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

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

user output
3
3
3
3
3
...
view save

Test 12

Group: 4, 5

Verdict: ACCEPTED

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

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

user output
2
2
2
2
2
...
view save

Test 13

Group: 4, 5

Verdict: ACCEPTED

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

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

user output
3
2
2
3
2
...
view save

Test 14

Group: 4, 5

Verdict: ACCEPTED

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

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

user output
2
3
1
2
2
...
view save

Test 15

Group: 5

Verdict: ACCEPTED

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

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

user output
3
2
2
2
2
...
view save

Test 16

Group: 5

Verdict: ACCEPTED

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

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

user output
2
2
2
2
2
...
view save

Test 17

Group: 5

Verdict: ACCEPTED

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

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

user output
3
3
2
2
2
...
view save

Test 18

Group: 5

Verdict: ACCEPTED

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

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

user output
3
3
3
3
3
...
view save

Test 19

Group: 5

Verdict: ACCEPTED

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

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

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

Test 20

Group: 5

Verdict: ACCEPTED

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

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

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

Test 21

Group: 5

Verdict: ACCEPTED

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

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

user output
498
498
498
498
498
...
view save

Test 22

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

input
10 1 10
*
*
.
*
...
view save

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

user output
0
1
1
0
0
...
view save

Test 23

Group: 1, 2, 3, 4, 5

Verdict: ACCEPTED

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
1
1
1
1
1
...
view save

Test 24

Group: 5

Verdict: ACCEPTED

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

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

user output
1
1
1
1
1
...
view save

Test 25

Group: 5

Verdict: ACCEPTED

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

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

user output
1
1
1
1
1
...
view save

Test 26

Group: 5

Verdict: ACCEPTED

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

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

user output
2
2
2
2
2
...
view save

Test 27

Group: 5

Verdict: ACCEPTED

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

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

user output
0
0
0
0
0
...
view save

Tasks

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

Submissions (Lytsky)

2025-11-08 16:26:07 1002025-11-08 12:53:01 402025-11-08 12:38:53 02025-11-08 11:40:48 402025-11-07 22:37:07 02025-11-07 22:15:03 02025-11-07 15:22:57 602025-11-07 12:16:27 602025-11-07 12:00:15 602025-11-07 11:41:20 602025-11-07 11:41:07 602025-11-07 11:40:52 602025-11-07 11:06:33 602025-11-07 10:59:48 602025-11-07 10:53:59 602025-11-07 10:41:21 602025-11-07 10:38:22 602025-11-07 10:37:17 602025-11-07 10:34:50 602025-11-07 10:31:48 602025-11-07 10:26:10 602025-11-07 10:21:31 602025-11-07 10:19:31 602025-11-07 10:14:37 602025-11-07 09:19:33 602025-11-06 23:01:18 602025-11-06 22:59:45 602025-11-06 22:58:36 602025-11-06 22:45:58 602025-11-06 22:44:48 602025-11-06 22:43:28 602025-11-06 21:55:39 602025-11-06 21:46:16 02025-11-06 21:39:38 602025-11-06 21:26:22 602025-11-06 20:13:01 602025-11-06 19:51:21 602025-11-06 19:38:05 602025-11-06 19:31:42 602025-11-06 19:26:25 602025-11-06 19:16:32 602025-11-06 19:10:23 602025-11-06 19:04:56 602025-11-06 18:48:39 602025-11-06 18:18:36 602025-11-06 16:35:47 602025-11-06 16:03:24 602025-11-06 16:01:18 602025-11-06 15:53:27 602025-11-06 15:48:32 02025-11-06 15:34:18 602025-11-06 15:25:52 602025-11-06 15:20:50 602025-11-06 09:33:18 602025-11-06 09:30:49 102025-11-06 09:29:11 602025-11-06 09:24:10 602025-11-05 19:22:29 02025-11-05 18:02:05 102025-11-05 17:59:14 2025-11-05 17:56:14 102025-11-05 17:51:20 602025-11-05 15:43:31 602025-11-05 15:39:22 602025-11-05 15:35:22 02025-11-05 15:34:22 252025-11-05 15:33:39 2025-11-05 15:27:02 402025-11-05 15:24:01 402025-11-05 15:23:24 602025-11-05 15:21:35 602025-11-05 15:20:23 402025-11-05 15:18:15 402025-11-05 15:12:58 402025-11-05 14:50:12 602025-11-05 14:38:39 602025-11-05 13:08:38 602025-11-05 13:07:05 02025-11-05 12:55:05 602025-11-05 12:35:51 602025-11-05 12:34:42 302025-11-05 12:29:57 602025-11-05 12:24:41 102025-11-05 12:18:37 602025-11-05 12:16:58 602025-11-05 12:15:07 02025-11-05 12:11:01 602025-11-05 12:07:08 02025-11-05 11:12:31 102025-11-05 10:43:02 02025-11-05 10:35:58 02025-11-05 10:13:18 02025-11-04 23:07:54 2025-11-04 16:21:49 02025-11-04 13:02:10 102025-11-04 12:44:48 402025-11-04 12:25:13 02025-11-04 11:45:40 02025-11-04 10:44:34 402025-11-04 10:21:27 402025-11-04 10:07:27 02025-11-03 14:59:18 602025-11-03 14:53:52 102025-11-02 21:15:00 602025-11-02 12:38:36 102025-11-02 12:28:08 102025-11-02 10:41:01 02025-11-01 19:28:53 02025-11-01 11:08:19 02025-11-01 10:14:56 02025-10-31 11:04:51 02025-10-31 10:48:17 02025-10-31 10:38:48 02025-10-31 10:26:34 02025-10-31 10:20:12 02025-10-31 09:12:25 02025-10-30 19:00:58 02025-10-30 18:12:37 02025-10-30 18:11:56 02025-10-30 17:33:12 02025-10-30 13:58:36 102025-10-30 12:05:59 02025-10-30 11:43:49 02025-10-30 11:09:17 02025-10-30 10:32:58 02025-10-30 09:29:34 02025-10-28 20:50:47 02025-10-28 20:24:15 0