CSES - Datatähti 2021 loppu

Submission details
Task:	Kolmijako
Sender:	T
Submission time:	2021-01-23 19:34:03 +0200
Language:	C++ (C++11)
Status:	READY
Result:	100

Feedback
group	verdict	score
#1	ACCEPTED	22
#2	ACCEPTED	78

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 2	details
#2	ACCEPTED	0.01 s	1, 2	details
#3	ACCEPTED	0.01 s	1, 2	details
#4	ACCEPTED	0.01 s	1, 2	details
#5	ACCEPTED	0.01 s	1, 2	details
#6	ACCEPTED	0.01 s	1, 2	details
#7	ACCEPTED	0.01 s	1, 2	details
#8	ACCEPTED	0.01 s	1, 2	details
#9	ACCEPTED	0.01 s	2	details
#10	ACCEPTED	0.01 s	2	details
#11	ACCEPTED	0.01 s	2	details
#12	ACCEPTED	0.01 s	2	details
#13	ACCEPTED	0.01 s	2	details
#14	ACCEPTED	0.01 s	2	details
#15	ACCEPTED	0.01 s	2	details

Code

/**
 * Datat�hti 2021 loppu
 * 358
 * B
 * Kolmijako
 * @author TRS
 */
//Include
#include <bits/stdc++.h>
//Definitions
using namespace std;
//Constants
#define infinity 0x3f3f3f3f
#define linfinity 0x3f3f3f3f3f3f3f3f
#define MOD 1000000007
int n;
int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    cin>>n;
    if ((n * (n + 1) / 2) % 3 != 0) {
        cout<<"IMPOSSIBLE"<<"\n";
        return 0;
    }
    if (n == 3) {
        cout<<"1 2 3";
        return 0;
    }
    if (n == 5) {
        cout<<"1 3 1 3 2";
        return 0;
    }
    if (n == 6) {
        cout<<"2 1 3 1 3 2";
        return 0;
    }
    int k = (n + 2) / 3;
    int results[k * 3];
    if (k % 2 == 0) {
        results[0] = 2;
        results[1] = 1;
        results[2] = 3;
        results[3] = 1;
        results[4] = 3;
        results[5] = 2;
        for (int i = 6; i < k * 3; i++) {
            if (i % 6 == 0) {
                results[i] = 1;
            }
            if (i % 6 == 1) {
                results[i] = 2;
            }
            if (i % 6 == 2) {
                results[i] = 3;
            }
            if (i % 6 == 3) {
                results[i] = 3;
            }
            if (i % 6 == 4) {
                results[i] = 2;
            }
            if (i % 6 == 5) {
                results[i] = 1;
            }
        }
    }
    else {
        results[0] = 1;
        results[1] = 2;
        results[2] = 3;
        for (int i = 3; i < k * 3; i++) {
            if ((i - 3) % 6 == 0) {
                results[i] = 1;
            }
            if ((i - 3) % 6 == 1) {
                results[i] = 2;
            }
            if ((i - 3) % 6 == 2) {
                results[i] = 3;
            }
            if ((i - 3) % 6 == 3) {
                results[i] = 3;
            }
            if ((i - 3) % 6 == 4) {
                results[i] = 2;
            }
            if ((i - 3) % 6 == 5) {
                results[i] = 1;
            }
        }
    }
    for (int i = k * 3 - n; i < k * 3; i++) {
        cout<<results[i]<<" ";
    }
    return 0;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
`3` view save

correct output
`1 2 3` view save

user output
`1 2 3` view save

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
`4` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
`5` view save

correct output
`1 3 1 3 2` view save

user output
`1 3 1 3 2` view save

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
`6` view save

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

user output
`2 1 3 1 3 2` view save

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
`7` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
`8` view save

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

user output
`2 3 1 2 3 3 2 1` view save

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
`9` view save

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

user output
`1 2 3 1 2 3 3 2 1` view save

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
`10` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 9

Group: 2

Verdict: ACCEPTED

input
`42` view save

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

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

Test 10

Group: 2

Verdict: ACCEPTED

input
`95` view save

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

user output
`1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ...` Truncated

Test 11

Group: 2

Verdict: ACCEPTED

input
`96` view save

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

user output
`2 1 3 1 3 2 1 2 3 3 2 1 1 2 3 ...` Truncated

Test 12

Group: 2

Verdict: ACCEPTED

input
`97` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 13

Group: 2

Verdict: ACCEPTED

input
`98` view save

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

user output
`2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ...` Truncated

Test 14

Group: 2

Verdict: ACCEPTED

input
`99` view save

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

user output
`1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ...` Truncated

Test 15

Group: 2

Verdict: ACCEPTED

input
`100` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Datatähti 2021 loppu

Kolmijako

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

Tasks

Submissions (T)