CSES - Datatähti 2021 alku

Submission details
Task:	2021-luvut
Sender:	iRobo
Submission time:	2020-10-11 18:43:34 +0300
Language:	Java
Status:	READY
Result:	25

Feedback
group	verdict	score
#1	ACCEPTED	10
#2	ACCEPTED	15
#3	TIME LIMIT EXCEEDED	0
#4	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.13 s	1, 2, 3, 4	details
#2	ACCEPTED	0.13 s	1, 2, 3, 4	details
#3	ACCEPTED	0.14 s	1, 2, 3, 4	details
#4	ACCEPTED	0.13 s	1, 2, 3, 4	details
#5	ACCEPTED	0.13 s	1, 2, 3, 4	details
#6	ACCEPTED	0.13 s	1, 2, 3, 4	details
#7	ACCEPTED	0.13 s	1, 2, 3, 4	details
#8	ACCEPTED	0.13 s	1, 2, 3, 4	details
#9	ACCEPTED	0.13 s	1, 2, 3, 4	details
#10	ACCEPTED	0.13 s	1, 2, 3, 4	details
#11	ACCEPTED	0.19 s	2, 3, 4	details
#12	ACCEPTED	0.16 s	2, 3, 4	details
#13	ACCEPTED	0.18 s	2, 3, 4	details
#14	ACCEPTED	0.17 s	2, 3, 4	details
#15	ACCEPTED	0.18 s	2, 3, 4	details
#16	ACCEPTED	0.18 s	2, 3, 4	details
#17	ACCEPTED	0.18 s	2, 3, 4	details
#18	ACCEPTED	0.19 s	2, 3, 4	details
#19	ACCEPTED	0.18 s	2, 3, 4	details
#20	ACCEPTED	0.17 s	2, 3, 4	details
#21	TIME LIMIT EXCEEDED	--	3, 4	details
#22	TIME LIMIT EXCEEDED	--	3, 4	details
#23	TIME LIMIT EXCEEDED	--	3, 4	details
#24	TIME LIMIT EXCEEDED	--	3, 4	details
#25	TIME LIMIT EXCEEDED	--	3, 4	details
#26	TIME LIMIT EXCEEDED	--	3, 4	details
#27	TIME LIMIT EXCEEDED	--	3, 4	details
#28	TIME LIMIT EXCEEDED	--	3, 4	details
#29	TIME LIMIT EXCEEDED	--	3, 4	details
#30	TIME LIMIT EXCEEDED	--	3, 4	details
#31	TIME LIMIT EXCEEDED	--	4	details
#32	TIME LIMIT EXCEEDED	--	4	details
#33	TIME LIMIT EXCEEDED	--	4	details
#34	TIME LIMIT EXCEEDED	--	4	details
#35	TIME LIMIT EXCEEDED	--	4	details
#36	TIME LIMIT EXCEEDED	--	4	details
#37	TIME LIMIT EXCEEDED	--	4	details
#38	TIME LIMIT EXCEEDED	--	4	details
#39	TIME LIMIT EXCEEDED	--	4	details
#40	TIME LIMIT EXCEEDED	--	4	details

Code

import java.util.Arrays;
import java.util.Scanner;

public class Main {

    static long n;

    static int firstNon2021 = 4;
    static int numberOf2021Leftwards = 4;
    static int[] locationOf2021 = new int[4];

    static int[] the2021Numbers = new int[4];

    public static void main(String[] args) {

        the2021Numbers[3] = 2;
        the2021Numbers[2] = 0;
        the2021Numbers[1] = 2;
        the2021Numbers[0] = 1;

        Scanner input = new Scanner(System.in);
        n = input.nextLong();
        //n = 100;

        int[] current2021 = new int[20];
        current2021[0] = 1; //the 2021 number is written in reverse order: 1202----------------
        current2021[1] = 2;
        current2021[2] = 0;
        current2021[3] = 2;

        /*
        locationOf2021[0] = 3; //the location of the first number, 2
        locationOf2021[1] = 2; //location of 0
        locationOf2021[2] = 1; //location of 2
        locationOf2021[3] = 0; //the location of the last 2021 number, 1.
         */

        locationOf2021[0] = 3; //the location of the first number, 2
        locationOf2021[1] = 2; //location of 0
        locationOf2021[2] = 1; //location of 2
        locationOf2021[3] = 0; //the location of the last 2021 number, 1.

        for(long i = 0; i < n-1; i++) {
            current2021 = findNext2021Number(current2021);
        }
        String printNumber = "";
        for(int j = 0; j < 20; j++) {
            printNumber = printNumber.concat(Integer.toString(current2021[19-j]));
        }
        System.out.println(Long.parseLong(printNumber));
        /*
        String printNumber;
        for(long i = 0; i < n; i++) {
            printNumber = "";
            for(int j = 0; j < 20; j++) {
                printNumber = printNumber.concat(Integer.toString(current2021[19-j]));
                //System.out.print(Integer.toString(current2021[19-j]));
            }
            //System.out.println();
            System.out.println(Long.parseLong(printNumber) + " locations of 2021: " + locationOf2021[0] + " "
                    + locationOf2021[1] + " " + locationOf2021[2] + " " + locationOf2021[3] + " first non: "
                    + firstNon2021 + " left: " + numberOf2021Leftwards);
            //current2021 = findNext2021Number(new int[]{1,2,0,0,2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0});
            current2021 = findNext2021Number(current2021);
        }
         */

    }

    public static int[] findNext2021Number(int[] current2021) {

        while(current2021[firstNon2021] == 9) {
            firstNon2021++;
        }

        if(numberOf2021Leftwards < 4 && firstNon2021 == locationOf2021[3-numberOf2021Leftwards]) {
            //if the current non 2021 number is a 2021 number that gets increased
            current2021[firstNon2021]++;
            numberOf2021Leftwards++;
            for(int i = 0; i < firstNon2021; i++) {
                current2021[i] = 0;
            }
            for(int i = 0; i < numberOf2021Leftwards; i++) {
                current2021[i] = the2021Numbers[i];
                locationOf2021[3-i] = i;
            }
            //firstNon2021 = numberOf2021Leftwards;
            //set all the numbers leftwards of the firstNon2021 to 0 and add the remaining 2021 numbers at the end
            //update the firstNon2021
            //update locationOf2021

            for(int i = locationOf2021[0]-1; i > 0; i--) {
                if(current2021[i] == 0) {
                    locationOf2021[1] = i;
                    //System.out.println(i);
                    break;
                }
            }

            for(int i = 0; i < 5; i++) {
                boolean matches = false;
                for(int j = 0; j < 4; j++) {
                    if(i == locationOf2021[j]) {
                        matches = true;
                        break;
                    }
                }
                if(!matches) {
                    firstNon2021 = i;
                    break;
                }
            }
            numberOf2021Leftwards = firstNon2021;

        } else {
            current2021[firstNon2021]++;
            if(numberOf2021Leftwards != 0 && current2021[firstNon2021] == the2021Numbers[numberOf2021Leftwards-1]) {
                //if the new number becomes one of the 2021 numbers, then this gets executed
                numberOf2021Leftwards--;
                //update the location of the new 2021 number
                locationOf2021[3-numberOf2021Leftwards] = firstNon2021;
            }
            for(int i = 0; i < firstNon2021; i++) {
                current2021[i] = 0;
            }
            for(int i = 0; i < numberOf2021Leftwards; i++) {
                current2021[i] = the2021Numbers[i];
                locationOf2021[3-i] = i;
                //manually set the correct 0 location
            }

            for(int i = locationOf2021[0]-1; i > 0; i--) {
                if(current2021[i] == 0) {
                    locationOf2021[1] = i;
                    //System.out.println(i);
                    break;
                }
            }

            /*
            if(numberOf2021Leftwards > 2 && locationOf2021[0] > firstNon2021-1) {
                locationOf2021[1] = firstNon2021-1;
            }
             */

            for(int i = 0; i < 5; i++) {
                boolean matches = false;
                for(int j = 0; j < 4; j++) {
                    if(i == locationOf2021[j]) {
                        matches = true;
                        break;
                    }
                }
                if(!matches) {
                    firstNon2021 = i;
                    break;
                }
            }
            numberOf2021Leftwards = firstNon2021;
        }

        return current2021;
    }

}

Test details

Test 1

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`10` view save

correct output
`20214` view save

user output
`20214` view save

Test 2

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`359` view save

correct output
`202661` view save

user output
`202661` view save

Test 3

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`392` view save

correct output
`202819` view save

user output
`202819` view save

Test 4

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`715` view save

correct output
`230721` view save

user output
`230721` view save

Test 5

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`278` view save

correct output
`202219` view save

user output
`202219` view save

Test 6

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`296` view save

correct output
`202318` view save

user output
`202318` view save

Test 7

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`427` view save

correct output
`203214` view save

user output
`203214` view save

Test 8

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`565` view save

correct output
`208212` view save

user output
`208212` view save

Test 9

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`289` view save

correct output
`202311` view save

user output
`202311` view save

Test 10

Group: 1, 2, 3, 4

Verdict: ACCEPTED

input
`342` view save

correct output
`202581` view save

user output
`202581` view save

Test 11

Group: 2, 3, 4

Verdict: ACCEPTED

input
`964486` view save

correct output
`182502018` view save

user output
`182502018` view save

Test 12

Group: 2, 3, 4

Verdict: ACCEPTED

input
`110979` view save

correct output
`20296916` view save

user output
`20296916` view save

Test 13

Group: 2, 3, 4

Verdict: ACCEPTED

input
`759149` view save

correct output
`126108721` view save

user output
`126108721` view save

Test 14

Group: 2, 3, 4

Verdict: ACCEPTED

input
`234934` view save

correct output
`25023210` view save

user output
`25023210` view save

Test 15

Group: 2, 3, 4

Verdict: ACCEPTED

input
`610310` view save

correct output
`120288133` view save

user output
`120288133` view save

Test 16

Group: 2, 3, 4

Verdict: ACCEPTED

input
`956690` view save

correct output
`182027419` view save

user output
`182027419` view save

Test 17

Group: 2, 3, 4

Verdict: ACCEPTED

input
`608459` view save

correct output
`120281827` view save

user output
`120281827` view save

Test 18

Group: 2, 3, 4

Verdict: ACCEPTED

input
`944777` view save

correct output
`175260251` view save

user output
`175260251` view save

Test 19

Group: 2, 3, 4

Verdict: ACCEPTED

input
`880780` view save

correct output
`152270421` view save

user output
`152270421` view save

Test 20

Group: 2, 3, 4

Verdict: ACCEPTED

input
`418357` view save

correct output
`68202361` view save

user output
`68202361` view save

Test 21

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`713294506861` view save

correct output
`20099206371786` view save

user output
(empty)

Test 22

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`191431126351` view save

correct output
`4193020274761` view save

user output
(empty)

Test 23

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`778422318223` view save

correct output
`20247733120134` view save

user output
(empty)

Test 24

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`931090767075` view save

correct output
`20691282041612` view save

user output
(empty)

Test 25

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`198806129726` view save

correct output
`4275365802196` view save

user output
(empty)

Test 26

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`724343399444` view save

correct output
`20128443204610` view save

user output
(empty)

Test 27

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`105064053560` view save

correct output
`2350677231115` view save

user output
(empty)

Test 28

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`236866700902` view save

correct output
`5872395029521` view save

user output
(empty)

Test 29

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`696349488695` view save

correct output
`20034225603103` view save

user output
(empty)

Test 30

Group: 3, 4

Verdict: TIME LIMIT EXCEEDED

input
`30929267826` view save

correct output
`1205256095901` view save

user output
(empty)

Test 31

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`576379198814226780` view save

correct output
`4185251600926331891` view save

user output
(empty)

Test 32

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`291698664446913099` view save

correct output
`2280132983584730156` view save

user output
(empty)

Test 33

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`693146378550043345` view save

correct output
`5270258230724009910` view save

user output
(empty)

Test 34

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`685982323362439932` view save

correct output
`5236052744416920782` view save

user output
(empty)

Test 35

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`838865925103308874` view save

correct output
`6800200426815679149` view save

user output
(empty)

Test 36

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`766426223219980635` view save

correct output
`6112960212822572807` view save

user output
(empty)

Test 37

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`652970397451919317` view save

correct output
`4923188580186259818` view save

user output
(empty)

Test 38

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`188458586650539464` view save

correct output
`1903508375720755921` view save

user output
(empty)

Test 39

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`157646989818721527` view save

correct output
`1525038392797601315` view save

user output
(empty)

Test 40

Group: 4

Verdict: TIME LIMIT EXCEEDED

input
`898606361978236778` view save

correct output
`7326676702587314407` view save

user output
(empty)

Datatähti 2021 alku

2021-luvut

Code

Test details

Test 1

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

Test 28

Test 29

Test 30

Test 31

Test 32

Test 33

Test 34

Test 35

Test 36

Test 37

Test 38

Test 39

Test 40

Tasks

Submissions (iRobo)