CSES - Datatähti 2021 loppu

Submission details
Task:	Kolmijako
Sender:	lady-stardust
Submission time:	2021-01-23 16:51:31 +0200
Language:	C++ (C++17)
Status:	READY
Result:	0

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

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

Code

#include <bits/stdc++.h>
#include <unordered_map>
#define ll long long
#define ull unsigned long long

using namespace std;

vector<int> used(101, 0);

bool haku(ll sum, ll below, ll target1, int x) {
	if (sum == target1) return true;

	for (ll i = below - 1; i >= 1; i--) {
		if (!used[i]) {
			if (i + sum <= target1) {
				used[i] = x;
				if (haku(i + sum, i, target1, x)) {
					return true;
				}
				used[i] = 0;
			}
		}
	}

	return false;
}

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);

	istringstream cin(R"(4)");

	ll n; cin >> n;

	ll target = (n * (n + 1))/2/3;

	if (((n * (n + 1)) / 2) % 3 != 0) {
		cout << "IMPOSSIBLE";
		return 0;
	}

	haku(0, n + 1, target-1, 1);
	haku(0, n + 1, target, 2);
	haku(0, n + 1, target+1, 3);

	for (int i = 1; i <= n; i++) {
		cout << used[i] << " ";
	}

}

Test details

Test 1

Group: 1, 2

Verdict: WRONG ANSWER

input
`3` view save

correct output
`1 2 3` view save

user output
`IMPOSSIBLE` 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: WRONG ANSWER

input
`5` view save

correct output
`1 3 1 3 2` view save

user output
`IMPOSSIBLE` 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
`IMPOSSIBLE` 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: WRONG ANSWER

input
`8` view save

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

user output
`IMPOSSIBLE` view save

Test 7

Group: 1, 2

Verdict: WRONG ANSWER

input
`9` view save

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

user output
`IMPOSSIBLE` 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: WRONG ANSWER

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
`IMPOSSIBLE` view save

Test 10

Group: 2

Verdict: WRONG ANSWER

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
`IMPOSSIBLE` view save

Test 11

Group: 2

Verdict: WRONG ANSWER

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
`IMPOSSIBLE` view save

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: WRONG ANSWER

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
`IMPOSSIBLE` view save

Test 14

Group: 2

Verdict: WRONG ANSWER

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
`IMPOSSIBLE` view save

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 (lady-stardust)