CSES - Datatähti 2023 alku - Results
Submission details
Task:Ruudukko
Sender:vgtcross
Submission time:2022-11-08 20:56:55 +0200
Language:C++ (C++11)
Status:READY
Result:0
Feedback
groupverdictscore
#10
#20
#30
Test results
testverdicttimegroup
#10.00 s1, 2, 3details
#20.00 s1, 2, 3details
#30.00 s1, 2, 3details
#40.01 s2, 3details
#50.01 s2, 3details
#60.02 s2, 3details
#7--3details
#8--3details
#9--3details

Code

#include <bits/stdc++.h>
#define M 1000000007;
using namespace std;

int d = 0;

int vals[1000][1000];
int chains[1000][1000];
int totalChains = 0;
vector<pair<int, pair<int, int>>> orderTiles;


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    
    //ifstream f("file.txt");
    
    cin >> d;
    auto start = chrono::system_clock::now();
    
    for (int i = 0; i < d; i++) {
        for (int j = 0; j < d; j++) {
            cin >> vals[i][j];
            orderTiles.push_back({vals[i][j], {i, j}});
        }
    }
    
    //auto stop1 = chrono::system_clock::now();
    //chrono::duration<double> time1 = stop1 - start;
    //cout << "\nmidtime: " << time1.count() << "\n";
    
    sort(orderTiles.begin(), orderTiles.end());
    pair<int, pair<int, int>> p;
    int chainsFromThis, a, b, c;
    
    for (int i = 0; i < d * d; i++) {
        chainsFromThis = 1;
        p = orderTiles[i];
        a = p.first;
        b = p.second.first;
        c = p.second.second;
        
        for (int j = 0; j < d; j++) {
            if (a > vals[j][c]) chainsFromThis = (chainsFromThis + chains[j][c]) % M;
            if (a > vals[b][j]) chainsFromThis = (chainsFromThis + chains[b][j]) % M;
        }
        
        chains[b][c] = chainsFromThis;
        totalChains = (totalChains + chainsFromThis) % M;
    }
    
    /*for (int i = 0; i < d; i++) {
        cout << '\n';
        for (int j = 0; j < d; j++) {
            cout << chains[i][j] << ' ';
        }
    }*/
    
    cout << totalChains;
    auto stop2 = chrono::system_clock::now();
    chrono::duration<double> time2 = stop2 - start;
    cout << "\ntime: " << time2.count();
}

Test details

Test 1

Group: 1, 2, 3

Verdict:

input
3
1 1 1
1 1 1
1 1 1

correct output
9

user output
9
time: 2.6562e-05

Test 2

Group: 1, 2, 3

Verdict:

input
3
1 2 3
6 5 4
7 8 9

correct output
135

user output
135
time: 3.1745e-05

Test 3

Group: 1, 2, 3

Verdict:

input
3
7 8 1
4 5 4
3 9 6

correct output
57

user output
57
time: 3.1773e-05

Test 4

Group: 2, 3

Verdict:

input
100
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...

correct output
10000

user output
10000
time: 0.00337313

Test 5

Group: 2, 3

Verdict:

input
100
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
187458477

user output
187458477
time: 0.00691372

Test 6

Group: 2, 3

Verdict:

input
100
2995 8734 1018 2513 7971 5063 ...

correct output
964692694

user output
964692694
time: 0.0120261

Test 7

Group: 3

Verdict:

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

correct output
1000000

user output
(empty)

Test 8

Group: 3

Verdict:

input
1000
1 2 3 4 5 6 7 8 9 10 11 12 13 ...

correct output
229147081

user output
(empty)

Test 9

Group: 3

Verdict:

input
1000
520283 805991 492643 75254 527...

correct output
951147313

user output
(empty)