| Task: | Split in Three |
| Sender: | mofk |
| Submission time: | 2021-01-30 16:32:33 +0200 |
| Language: | C++17 |
| Status: | READY |
| Result: | 100 |
| group | verdict | score |
|---|---|---|
| #1 | ACCEPTED | 22 |
| #2 | ACCEPTED | 78 |
| 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>
using namespace std;
int main(void) {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int n;
cin >> n;
int s = n * (n + 1) / 2;
if (s % 3 != 0) {
cout << "IMPOSSIBLE" << endl;
return 0;
}
vector<int> ans(n + 1, -1);
int r = n % 6;
if (r == 0) r = 6;
if (r == 2) {
ans[1] = 2;
ans[2] = 3;
}
else if (r == 3) {
ans[1] = 1;
ans[2] = 2;
ans[3] = 3;
}
else if (r == 5) {
ans[4] = 1;
ans[5] = 2;
ans[1] = ans[2] = ans[3] = 3;
}
else {
ans[6] = 1;
ans[1] = ans[2] = ans[4] = 2;
ans[3] = ans[5] = 3;
}
for (int i = r; i + 6 <= n; i += 6) {
ans[i + 1] = ans[i + 6] = 1;
ans[i + 2] = ans[i + 5] = 2;
ans[i + 3] = ans[i + 4] = 3;
}
for (int i = 1; i <= n; ++i) cout << ans[i] << ' ';
cout << endl;
return 0;
}
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 |
|---|
| 3 3 3 1 2 |
Test 4
Group: 1, 2
Verdict: ACCEPTED
| input |
|---|
| 6 |
| correct output |
|---|
| 1 3 2 2 1 3 |
| user output |
|---|
| 2 2 3 2 3 1 |
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 |
|---|
| 2 3 1 2 3 3 2 1 |
Test 7
Group: 1, 2
Verdict: ACCEPTED
| input |
|---|
| 9 |
| correct output |
|---|
| 1 2 3 1 2 3 3 2 1 |
| user output |
|---|
| 1 2 3 1 2 3 3 2 1 |
Test 8
Group: 1, 2
Verdict: ACCEPTED
| input |
|---|
| 10 |
| correct output |
|---|
| IMPOSSIBLE |
| user output |
|---|
| IMPOSSIBLE |
Test 9
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 42 |
| correct output |
|---|
| 1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ... |
| user output |
|---|
| 2 2 3 2 3 1 1 2 3 3 2 1 1 2 3 ... |
Test 10
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 95 |
| correct output |
|---|
| 1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ... |
| user output |
|---|
| 3 3 3 1 2 1 2 3 3 2 1 1 2 3 3 ... |
Test 11
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 96 |
| correct output |
|---|
| 1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ... |
| user output |
|---|
| 2 2 3 2 3 1 1 2 3 3 2 1 1 2 3 ... |
Test 12
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 97 |
| correct output |
|---|
| IMPOSSIBLE |
| user output |
|---|
| IMPOSSIBLE |
Test 13
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 98 |
| correct output |
|---|
| 2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ... |
| user output |
|---|
| 2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ... |
Test 14
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 99 |
| correct output |
|---|
| 1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ... |
| user output |
|---|
| 1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ... |
Test 15
Group: 2
Verdict: ACCEPTED
| input |
|---|
| 100 |
| correct output |
|---|
| IMPOSSIBLE |
| user output |
|---|
| IMPOSSIBLE |