CSES - Datatähti 2026 alku

Submission details
Task:	Hypyt
Sender:	zli0122
Submission time:	2025-11-02 22:32:34 +0200
Language:	C++ (C++11)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	WRONG ANSWER	0
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	WRONG ANSWER	0.01 s	1, 2, 3, 4, 5	details
#2	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#3	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#4	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#5	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#6	WRONG ANSWER	0.40 s	2, 5	details
#7	WRONG ANSWER	0.34 s	2, 5	details
#8	WRONG ANSWER	0.29 s	2, 5	details
#9	WRONG ANSWER	0.16 s	3, 4, 5	details
#10	WRONG ANSWER	0.14 s	3, 4, 5	details
#11	WRONG ANSWER	0.12 s	3, 4, 5	details
#12	WRONG ANSWER	0.34 s	4, 5	details
#13	WRONG ANSWER	0.25 s	4, 5	details
#14	WRONG ANSWER	0.17 s	4, 5	details
#15	TIME LIMIT EXCEEDED	--	5	details
#16	TIME LIMIT EXCEEDED	--	5	details
#17	WRONG ANSWER	0.85 s	5	details
#18	WRONG ANSWER	0.59 s	5	details
#19	WRONG ANSWER	0.13 s	5	details
#20	WRONG ANSWER	0.14 s	5	details
#21	WRONG ANSWER	0.11 s	5	details
#22	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#23	WRONG ANSWER	0.00 s	1, 2, 3, 4, 5	details
#24	WRONG ANSWER	0.11 s	5	details
#25	WRONG ANSWER	0.08 s	5	details
#26	TIME LIMIT EXCEEDED	--	5	details
#27	WRONG ANSWER	0.10 s	5	details

Code

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

#define debug(x) cout << #x << ": " << (x) << " | "
#define Debug(x) cout << #x << ": " << (x) << "\n"

const int N = 250;
const int M = 250;

int grid[N][M];

bool vis[N][N];
int dis[N][N];

void solve() {
    int n, m, q;
    cin >> n >> m >> q;

    unordered_set<int> adj[N];

    unordered_set<int> col_connections[M];
    char t;
    for (int r=0; r<n; r++) {
        for (int c=0; c<m; c++) {
            cin >> t;
            if (t == '.') {
                grid[r][c]=1;
                for (auto i : col_connections[c]) {
                    adj[i].insert(r);
                    adj[r].insert(i);
                }
                col_connections[c].insert(r);
            }
        }
    }

    queue<int> dfs;

    for (int r=0; r<n; r++) {
        vis[r][r] = true;
        dis[r][r] = 0;
        dfs.push(r);
        while (!dfs.empty()) {
            int s = dfs.front(); dfs.pop(); 

            for (auto u : adj[s]) {
                if (vis[r][u]) continue;
                vis[r][u] = true;
                dis[r][u] = dis[r][s]+1;
                dfs.push(u);
            }
        }
    }
    
    for (int r=0;r<n;r++) {
        for (int c=0;c<m;c++) {
            cout << r << c << ": " << dis[r][c] << ", ";
        }
        cout << "\n";
    }

    int r1, c1, r2, c2;
    int ans;
    
    unordered_set<int> first_vertical, last_vertical;

    for (int _=0;_<q;_++) {
        first_vertical.clear();
        last_vertical.clear();

        cin >> r1 >> c1 >> r2 >> c2;
        r1--; c1--; r2--; c2--;
        if (!vis[r1][r2]) {cout << -1 << "\n"; continue;}
        if (r1 == r2 && c1 == c2) {cout << 0 << "\n"; continue;}
        if (r1 == r2 || c1 == c2) {cout << 1 << "\n"; continue;}
        
        ans = 2*dis[r1][r2]+1; // hv...vh

        for (auto i : col_connections[c1])
            if (dis[i][r2] < dis[r1][r2]) {first_vertical.insert(i);}

        for (auto j : col_connections[c2])
            if (dis[r1][j] < dis[r1][r2]) {last_vertical.insert(j);}

        bool done = 0;
        if ((!first_vertical.empty()) || (!last_vertical.empty())) ans--;
        if ((!first_vertical.empty()) && (!last_vertical.empty())) {
            for (auto i : first_vertical) {
                for (auto j : last_vertical) {
                    if (dis[i][j] == dis[r1][r2]-2) {
                        ans--;
                        done = 1;
                        break;
                    }
                }
                if ( done ) break;
            }
        }

        cout << ans << "\n";
    }
}
int main () {
    cin.tie(0) -> ios::sync_with_stdio(0);
    solve();
}

Test details

Test 1 (public)

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

correct output
`1 0 3 3 -1` view save

user output
`00: 0, 01: 1, 02: 0, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 2

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 3

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 4

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 0, 02: 3, 03: 2, 04...` view save

Feedback: Output is longer than expected

Test 5

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

correct output
`7` view save

user output
`00: 0, 01: 1, 02: 0, 03: 2, 04...` view save

Feedback: Output is longer than expected

Test 6

Group: 2, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 7

Group: 2, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 8

Group: 2, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 9

Group: 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 10

Group: 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 11

Group: 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 12

Group: 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 13

Group: 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 14

Group: 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 15

Group: 5

Verdict: TIME LIMIT EXCEEDED

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

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

user output
(empty)

Test 16

Group: 5

Verdict: TIME LIMIT EXCEEDED

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

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

user output
(empty)

Test 17

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 18

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 1, 03: 1, 04...` view save

Feedback: Output is longer than expected

Test 19

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 2, 02: 4, 03: 6, 04...` view save

Feedback: Output is longer than expected

Test 20

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 2, 03: 2, 04...` view save

Feedback: Output is longer than expected

Test 21

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 1, 02: 2, 03: 3, 04...` view save

Feedback: Output is longer than expected

Test 22

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 10: 0, 20: 0, 30: 0, 40: 0, ...` view save

Feedback: Output is longer than expected

Test 23

Group: 1, 2, 3, 4, 5

Verdict: WRONG ANSWER

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
`00: 0, 01: 0, 02: 0, 03: 0, 04...` view save

Feedback: Output is longer than expected

Test 24

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 10: 0, 20: 0, 30: 0, 40: 0, ...` view save

Feedback: Output is longer than expected

Test 25

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 0, 02: 0, 03: 0, 04...` view save

Feedback: Output is longer than expected

Test 26

Group: 5

Verdict: TIME LIMIT EXCEEDED

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

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

user output
(empty)

Test 27

Group: 5

Verdict: WRONG ANSWER

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

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

user output
`00: 0, 01: 0, 02: 0, 03: 0, 04...` view save

Feedback: Output is longer than expected

Datatähti 2026 alku

Hypyt

Code

Test details

Test 1 (public)

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Test 22

Test 23

Test 24

Test 25

Test 26

Test 27

Tasks

Submissions (zli0122)