CSES - Datatähti Open 2021 - Results
Submission details
Task:Split in Three
Sender:qpwoeirut
Submission time:2021-01-30 06:53:29 +0200
Language:C++ (C++17)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED22
#2ACCEPTED78
Test results
testverdicttimegroup
#1ACCEPTED0.01 s1, 2details
#2ACCEPTED0.01 s1, 2details
#3ACCEPTED0.01 s1, 2details
#4ACCEPTED0.01 s1, 2details
#5ACCEPTED0.01 s1, 2details
#6ACCEPTED0.01 s1, 2details
#7ACCEPTED0.01 s1, 2details
#8ACCEPTED0.01 s1, 2details
#9ACCEPTED0.01 s2details
#10ACCEPTED0.01 s2details
#11ACCEPTED0.01 s2details
#12ACCEPTED0.01 s2details
#13ACCEPTED0.01 s2details
#14ACCEPTED0.01 s2details
#15ACCEPTED0.01 s2details

Code

//split_in_three.cpp created at 01/29/21 20:24:38

#include <bits/stdc++.h>

using namespace std;

const int MN = 101;

const int A[7][7] = {
    {0, 0, 0, 0, 0, 0},
    {2, 3, 0, 0, 0, 0},
    {1, 2, 3, 0, 0, 0},
    {0, 0, 0, 0, 0, 0},
    {1, 3, 1, 3, 2, 0},
    {1, 3, 2, 2, 1, 3}
};

int N;
int ans[MN];

int main() {
    cin >> N;

    int extra = ((N - 1) % 6);
    if (extra == 0 || extra == 3) {
        cout << "IMPOSSIBLE" << endl;
        return 0;
    }

    copy(A[extra], A[extra] + 6, ans);

    for (int i=extra + 1; i<N; i+=6) {
        ans[i] = ans[i+5] = 1;
        ans[i+1] = ans[i+4] = 2;
        ans[i+2] = ans[i+3] = 3;
    }

    for (int i=0; i<N; ++i) {
        if (i) cout << ' ';
        cout << ans[i];
    }
    cout << endl;
}

Test details

Test 1

Group: 1, 2

Verdict: ACCEPTED

input
3

correct output
1 2 3 

user output
1 2 3

Test 2

Group: 1, 2

Verdict: ACCEPTED

input
4

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 3

Group: 1, 2

Verdict: ACCEPTED

input
5

correct output
1 3 1 3 2 

user output
1 3 1 3 2

Test 4

Group: 1, 2

Verdict: ACCEPTED

input
6

correct output
1 3 2 2 1 3 

user output
1 3 2 2 1 3

Test 5

Group: 1, 2

Verdict: ACCEPTED

input
7

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 6

Group: 1, 2

Verdict: ACCEPTED

input
8

correct output
2 3 1 2 3 3 2 1 

user output
2 3 1 2 3 3 2 1

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
9

correct output
1 2 3 1 2 3 3 2 1 

user output
1 2 3 1 2 3 3 2 1

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
10

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 9

Group: 2

Verdict: ACCEPTED

input
42

correct output
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...

user output
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...

Test 10

Group: 2

Verdict: ACCEPTED

input
95

correct output
1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ...

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

correct output
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ...

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

Test 12

Group: 2

Verdict: ACCEPTED

input
97

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 13

Group: 2

Verdict: ACCEPTED

input
98

correct output
2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ...

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

correct output
1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ...

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

correct output
IMPOSSIBLE

user output
IMPOSSIBLE