CSES - Datatähti Open 2021

Submission details
Task:	Split in Three
Sender:	doowey
Submission time:	2021-01-31 13:48:01 +0200
Language:	C++ (C++11)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0

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	WRONG ANSWER	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

#include <bits/stdc++.h>

using namespace std;

int can[105];

int main(){
    int n;
    cin >> n;
    if(n % 3 == 1){
        cout << "IMPOSSIBLE\n";
        return 0;
    }
    int A = (n * (n + 1) / 2 - 3) / 3;
    int A1 = A + 1;
    for(int i = n; i >= 1; i -- ){
        if(A1 >= i){
            A1 -= i;
            can[i]=2;
        }
    }
    for(int i = n; i >= 1; i -- ){
        if(A >= i && can[i] == 0){
            A -= i;
            can[i]=1;
        }
    }
    for(int i = 1; i <= n; i ++ ){
        if(can[i]==0) can[i]=3;
        cout << can[i] << " ";
    }
    cout << "\n";
    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
`3 3 3 1 2` view save

Test 4

Group: 1, 2

Verdict: WRONG ANSWER

input
`6` view save

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

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

Test 15

Group: 2

Verdict: ACCEPTED

input
`100` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Datatähti Open 2021

Split in Three

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 (doowey)