CSES - Datatähti 2021 loppu - Results
 Task: Kolmijako Sender: AtskaFin Submission time: 2021-01-23 16:22:35 +0200 Language: C++17 Status: READY Result: 22
Feedback
groupverdictscore
#1ACCEPTED22
#20
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
#9--2details
#10--2details
#11--2details
#12--2details
#13--2details
#14--2details
#15--2details

Code

```#include <iostream>
#include <vector>

using namespace std;

vector<int> a;
vector<int> b;
vector<int> c;
int sumA;
int sumB;
int sumC;

int ans[101];

int n;
bool found = false;

void search(int i) {
if (i > n) {
// check
if (sumA == sumB-1 && sumB == sumC-1) {
found = true;
}

return;
}

a.push_back(i);
sumA += i;
search(i+1);
if (found) return;
sumA -= i;
a.pop_back();

b.push_back(i);
sumB += i;
search(i+1);
if (found) return;
sumB -= i;
b.pop_back();

c.push_back(i);
sumC += i;
search(i+1);
if (found) return;
sumC -= i;
c.pop_back();
}

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

cin>>n;

search(1);

if (!found) {
cout << "IMPOSSIBLE";
} else {
for (int i : a) {
ans[i] = 1;
}
for (int i : b) {
ans[i] = 2;
}
for (int i : c) {
ans[i] = 3;
}

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

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
1 1 1 2 1 3 3 2

Test 7

Group: 1, 2

Verdict: ACCEPTED

input
9

correct output
1 2 3 1 2 3 3 2 1

user output
1 1 1 2 2 2 3 1 3

Test 8

Group: 1, 2

Verdict: ACCEPTED

input
10

correct output
IMPOSSIBLE

user output
IMPOSSIBLE

Test 9

Group: 2

Verdict:

input
42

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

user output
(empty)

Test 10

Group: 2

Verdict:

input
95

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

user output
(empty)

Test 11

Group: 2

Verdict:

input
96

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

user output
(empty)

Group: 2

Verdict:

input
97

correct output
IMPOSSIBLE

user output
(empty)

Test 13

Group: 2

Verdict:

input
98

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

user output
(empty)

Test 14

Group: 2

Verdict:

input
99

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

user output
(empty)

Group: 2

Verdict:

input
100

correct output
IMPOSSIBLE

user output
(empty)