CSES - Datatähti 2021 loppu

CSES - Datatähti 2021 loppu - Results

Submission details
Task:	Kolmijako
Sender:	jubidubi
Submission time:	2021-01-23 16:24:31 +0200
Language:	C++ (C++11)
Status:	READY
Result:	22

Feedback
group	verdict	score
#1	ACCEPTED	22
#2	TIME LIMIT EXCEEDED	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	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	TIME LIMIT EXCEEDED	--	2	details
#10	TIME LIMIT EXCEEDED	--	2	details
#11	TIME LIMIT EXCEEDED	--	2	details
#12	ACCEPTED	0.01 s	2	details
#13	TIME LIMIT EXCEEDED	--	2	details
#14	TIME LIMIT EXCEEDED	--	2	details
#15	ACCEPTED	0.01 s	2	details

Code

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
 
const int N = 101;
int sum[3];
int t[N];
int n;
int s;
 
void solve(int x) {
	if (x > n) {
		if (sum[0] == sum[1] - 1 && sum[1] == sum[2] - 1) {
			for (int i = 1; i <= n; ++i) cout << t[i]+1 << " ";
			cout << '\n';
			exit(0);
		}
	} else {
		for (int i = 0; i < 3; ++i) {
			sum[i] += x;
			t[x] = i;
			solve(x+1);
			sum[i] -= x;
		}	
	}
}
 
int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
 
	cin >> n;
 
	for (int i = 1; i <= n; ++i) s += i;
 
	if (s % 3 != 0) {
		cout << "IMPOSSIBLE\n";
		return 0;
	}
	solve(1);
	cout << "IMPOSSIBLE\n";
}

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
`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
`1 1 1 2 1 3 3 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 1 1 2 2 2 3 1 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: TIME LIMIT EXCEEDED

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
(empty)

Test 10

Group: 2

Verdict: TIME LIMIT EXCEEDED

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
(empty)

Test 11

Group: 2

Verdict: TIME LIMIT EXCEEDED

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
(empty)

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: TIME LIMIT EXCEEDED

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
(empty)

Test 14

Group: 2

Verdict: TIME LIMIT EXCEEDED

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
(empty)

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 (jubidubi)