Ruudukko

import java.util.ArrayList;
import java.util.Random;
import java.util.Scanner;

public class Ruudukko {

    public static void main(String[] args) {
        Scanner lukija = new Scanner(System.in);
        Random random = new Random();
        int koko = lukija.nextInt();
        //int koko = 100;
        Long[][] numerot = new Long[koko][koko];
        Long[][] siirtojenMaara = new Long[koko][koko];
        long pieninI = koko * koko;
      
        for (int y = 0; y < koko; y++) {
            for (int x = 0; x < koko; x++) {
                long numero = lukija.nextLong();
                //long numero = (long) random.nextInt(koko*koko) +1;
                if (numero < pieninI) {
                    pieninI = numero;
                }
                numerot[x][y] = numero;
                siirtojenMaara[x][y] = (long) 0;
            }
        }

       
        for (int y = 0; y < koko; y++) {
            for (int x = 0; x < koko; x++) {
                if (numerot[x][y] == pieninI) {
                    siirtojenMaara[x][y] = (long) 1;
                }
            }
        }

        for (int i = (int) pieninI+1; i <= koko * koko; i++) {
            ArrayList<Long> pystyRivit = new ArrayList<>();
            ArrayList<Long> vaakaRivit = new ArrayList<>();
            for (int kopiointiY = 0; kopiointiY < koko; kopiointiY++) {
                long rivinSumma = 0;
                long pystySumma = 0;
                for (int kopiointiX = 0; kopiointiX < koko; kopiointiX++) {
                    rivinSumma = rivinSumma + siirtojenMaara[kopiointiX][kopiointiY];
                    pystySumma = pystySumma + siirtojenMaara[kopiointiY][kopiointiX];
                }
                vaakaRivit.add(kopiointiY, rivinSumma);
                pystyRivit.add(kopiointiY, pystySumma);
            }

            for (int y = 0; y < koko; y++) {
                for (int x = 0; x < koko; x++) {
                    if (numerot[x][y] == i) {
                        siirtojenMaara[x][y] += (long)(pystyRivit.get(x) + vaakaRivit.get(y) + 1)%1000000007;
                    }
                }                 
            }
            
        }
        long siirtojayhteensa = 0;
        for (int y = 0; y < koko; y++) {
            for (int x = 0; x < koko; x++) {
                siirtojayhteensa = siirtojayhteensa + siirtojenMaara[x][y];
            }
        }
        System.out.println((int) Math.round(siirtojayhteensa % 1000000007));
    }
}

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 2, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 7

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 8

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 9

Group: 3

Verdict: TIME LIMIT EXCEEDED