Task: | Split in Three |
Sender: | kenechi |
Submission time: | 2021-01-31 12:15:54 +0200 |
Language: | C++ (C++17) |
Status: | READY |
Result: | 0 |
group | verdict | score |
---|---|---|
#1 | WRONG ANSWER | 0 |
#2 | WRONG ANSWER | 0 |
test | verdict | time | group | |
---|---|---|---|---|
#1 | ACCEPTED | 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>using namespace std;#define int long long#define endl '\n'#define maxn 200010const int MOD = 1000000007;void solve() {int n;cin >> n;// x - 1// x// x + 1// 3 * x = n * (n + 1) // 2// n * (n + 1) // 6int tp = n * (n + 1);if (tp % 6) {cout << "IMPOSSIBLE";return;}vector<int> v1, v2;int sum = 0, val = tp / 6 + 1;for (int i = n; i >= 1 and sum < val; i--) {if (sum + i <= val)sum += i, v1.push_back(i);else {int back = val - sum;if (back < i) {v1.push_back(back);break;} else {cout << "IMPOSSIBLE";return;}}}val--;sum = 0;for (int i = n; i >= 1 and sum < val; i++) {if (binary_search(v1.begin(), v1.end(), i))continue;if (sum + i <= val)sum += i, v2.push_back(i);else {int back = val - sum;if (back <= n and !binary_search(v1.begin(), v1.end(), back, greater<int>())) {v2.push_back(back);break;} else {cout << "IMPOSSIBLE";return;}}}for (int i = 1; i <= n; i++) {if (binary_search(v1.begin(), v1.end(), i, greater<int>()))cout << 3 << " ";else if (binary_search(v2.begin(), v2.end(), i, greater<int>()))cout << 2 << " ";else cout << 1 << " ";}}int32_t main() {ios_base::sync_with_stdio(false);cin.tie(nullptr);int t = 1;// cin >> t;while (t--)solve();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: WRONG ANSWER
input |
---|
5 |
correct output |
---|
1 3 1 3 2 |
user output |
---|
3 1 1 1 3 |
Test 4
Group: 1, 2
Verdict: WRONG ANSWER
input |
---|
6 |
correct output |
---|
1 3 2 2 1 3 |
user output |
---|
2 3 1 1 1 3 |
Test 5
Group: 1, 2
Verdict: ACCEPTED
input |
---|
7 |
correct output |
---|
IMPOSSIBLE |
user output |
---|
IMPOSSIBLE |
Test 6
Group: 1, 2
Verdict: WRONG ANSWER
input |
---|
8 |
correct output |
---|
2 3 1 2 3 3 2 1 |
user output |
---|
1 1 1 2 3 1 1 3 |
Test 7
Group: 1, 2
Verdict: WRONG ANSWER
input |
---|
9 |
correct output |
---|
1 2 3 1 2 3 3 2 1 |
user output |
---|
1 1 1 1 1 2 3 1 3 |
Test 8
Group: 1, 2
Verdict: ACCEPTED
input |
---|
10 |
correct output |
---|
IMPOSSIBLE |
user output |
---|
IMPOSSIBLE |
Test 9
Group: 2
Verdict: WRONG ANSWER
input |
---|
42 |
correct output |
---|
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ... |
user output |
---|
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ... |
Test 10
Group: 2
Verdict: WRONG ANSWER
input |
---|
95 |
correct output |
---|
1 3 1 3 2 1 2 3 3 2 1 1 2 3 3 ... |
user output |
---|
IMPOSSIBLE |
Test 11
Group: 2
Verdict: WRONG ANSWER
input |
---|
96 |
correct output |
---|
1 3 2 2 1 3 1 2 3 3 2 1 1 2 3 ... |
user output |
---|
1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 ... Truncated |
Test 12
Group: 2
Verdict: ACCEPTED
input |
---|
97 |
correct output |
---|
IMPOSSIBLE |
user output |
---|
IMPOSSIBLE |
Test 13
Group: 2
Verdict: WRONG ANSWER
input |
---|
98 |
correct output |
---|
2 3 1 2 3 3 2 1 1 2 3 3 2 1 1 ... |
user output |
---|
1 1 1 1 1 1 3 1 1 1 1 1 1 1 1 ... Truncated |
Test 14
Group: 2
Verdict: WRONG ANSWER
input |
---|
99 |
correct output |
---|
1 2 3 1 2 3 3 2 1 1 2 3 3 2 1 ... |
user output |
---|
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ... Truncated |
Test 15
Group: 2
Verdict: ACCEPTED
input |
---|
100 |
correct output |
---|
IMPOSSIBLE |
user output |
---|
IMPOSSIBLE |