CSES - Datatähti Open 2021

Submission details
Task:	Split in Three
Sender:	TryMax
Submission time:	2021-01-30 15:30:06 +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

#include <bits/stdc++.h>
//#include <ext/pb_ds/assoc_container.hpp>
//#include <ext/pb_ds/tree_policy.hpp>

//#pragma GCC optimize ("O3")
//#pragma GCC optimize ("Ofast")
//#pragma GCC optimize ("unroll-loops")
//#pragma GCC optimize ("trapv")
//#pragma GCC optimize ("sse, ssse, sse2, avx")

#define f first
#define s second
#define pb push_back
#define ld long double
#define int long long

using namespace std;

const int N = 2e5 + 10, mod = 1e9 + 7, inf = 1e18 + 10;

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int n; cin >> n;
    if(n % 3 == 0){
        if((n / 3) % 2){
            for(int i = 1; i <= n; ++i)
                if((i - 1) % 6 + 1 <= 3)
                    cout << (i - 1) % 3 + 1 << " ";
                else
                    cout << 4 - ((i - 1) % 3 + 1) << " ";
        }else{
            for(int i = 1; i <= n - 6; ++i)
                if((i - 1) % 6 + 1 <= 3)
                    cout << (i - 1) % 3 + 1 << " ";
                else
                    cout << 4 - ((i - 1) % 3 + 1) << " ";
            cout << "1 3 2 2 1 3";
        }
    }else if(n % 3 == 2){
        if(((n + 1) / 3) % 2){
            for(int i = 1; i <= n + 1; ++i){
                if(i == 1)
                    continue;
                if((i - 1) % 6 + 1 <= 3)
                    cout << (i - 1) % 3 + 1 << " ";
                else
                    cout << 4 - ((i - 1) % 3 + 1) << " ";
            }
        }else{
            for(int i = 1; i <= n + 1 - 6; ++i){
                if(i == 1)
                    continue;
                if((i - 1) % 6 + 1 <= 3)
                    cout << (i - 1) % 3 + 1 << " ";
                else
                    cout << 4 - ((i - 1) % 3 + 1) << " ";
            }
            if(n == 5)
                cout << "3 3 3 1 2";
            else
                cout << "1 3 2 2 1 3";
        }
    }else{
        cout << "IMPOSSIBLE";
    }
}

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: ACCEPTED

input
`6` view save

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

user output
`1 3 2 2 1 3` 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 3 2 1 1 2 3` 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 3 2 1 1 2 3` 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
`1 2 3 3 2 1 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
`2 3 3 2 1 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
`1 2 3 3 2 1 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 3 2 1 1 2 3 3 2 1 1 2 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
`1 2 3 3 2 1 1 2 3 3 2 1 1 2 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 (TryMax)