Kertotaulu

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        long M = 1000000007L;
        Scanner lukija = new Scanner(System.in);

        long vasenY = lukija.nextInt();
        long vasenX = lukija.nextInt();
        long oikeaY = lukija.nextInt();
        long oikeaX = lukija.nextInt();

        long ekaRivi = (((oikeaX % M) * ((oikeaX + 1) % M)) / 2) % M;
        long kaikkiSarakkeet = ekaRivi;
        for (int i = 2; i <= oikeaY; i++) {
            kaikkiSarakkeet = (kaikkiSarakkeet + ((ekaRivi * i) % M)) % M;
        }

        long alkuRivit = ekaRivi;
        for (int i = 2; i <= vasenY - 1; i++) {
            alkuRivit = (alkuRivit + ((ekaRivi * i) % M)) % M;
        }

        long ekaSarake = (((oikeaY % M) * ((oikeaY + 1) % M)) / 2) % M;
        long alkuSarakkeet = ekaSarake;
        for (int i = 2; i <= vasenX - 1; i++) {
            alkuSarakkeet = (alkuSarakkeet + ((ekaSarake * i) % M)) % M;
        }
        long apuSumma = (alkuRivit + alkuSarakkeet) % M;
        long tulos = (kaikkiSarakkeet - apuSumma + 1) % M;
        
        System.out.println(tulos);
    }
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 1

Verdict: WRONG ANSWER

Test 3

Group: 1

Verdict: WRONG ANSWER

Test 4

Group: 1

Verdict: WRONG ANSWER

Test 5

Group: 1

Verdict: WRONG ANSWER

Test 6

Group: 2

Verdict: WRONG ANSWER

Test 7

Group: 2

Verdict: WRONG ANSWER

Test 8

Group: 2

Verdict: WRONG ANSWER

Test 9

Group: 2

Verdict: WRONG ANSWER

Test 10

Group: 2

Verdict: WRONG ANSWER

Test 11

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 12

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 13

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 14

Group: 3

Verdict: TIME LIMIT EXCEEDED

Test 15

Group: 3

Verdict: TIME LIMIT EXCEEDED