Task: | Järjestäminen |
Sender: | intoo |
Submission time: | 2021-01-23 18:06:30 +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 | WRONG ANSWER | 0.01 s | 1, 2 | details |
#2 | RUNTIME ERROR | 0.01 s | 2 | details |
#3 | RUNTIME ERROR | 0.01 s | 1, 2 | details |
#4 | WRONG ANSWER | 0.01 s | 1, 2 | details |
Code
#include <iostream>#include <vector>using namespace std;void swappair(vector<int>& v, vector<int>& d, int i, int j) {swap(v[i+1], v[j+1]);swap(d[v[i+1]], d[v[j+1]]);swap(v[i], v[j]);swap(d[v[i]], d[v[j]]);}int main() {int t;cin >> t;while (t --> 0) {int n;cin >> n;vector<int> v(n), d(n);for (int i = 0; i < n; ++i) {cin >> v[i];--v[i];d[v[i]] = i;}bool b = 0;for (int i = 0; i < n; ++i) {if (d[i] == i) continue;if (n-d[i]-2 < 2 && d[i]-i < 2) {cout << "NO\n";b = 1;break;} else if (d[i]-i > 1) {swappair(v, d, i, d[i]);} else {swappair(v, d, d[i], d[i]+2);swappair(v, d, i, d[i]);}}if (b) continue;cout << "YES\n";}}
Test details
Test 1
Group: 1, 2
Verdict: WRONG ANSWER
input |
---|
153 1 1 2 1 2 ... |
correct output |
---|
YES YES NO NO NO ... |
user output |
---|
YES YES NO NO NO ... Truncated |
Test 2
Group: 2
Verdict: RUNTIME ERROR
input |
---|
1000 59 35 29 32 50 11 15 9 21 19 45 2... |
correct output |
---|
YES NO YES NO YES ... |
user output |
---|
NO YES NO YES NO ... |
Error:
munmap_chunk(): invalid pointer
Test 3
Group: 1, 2
Verdict: RUNTIME ERROR
input |
---|
720 6 1 6 4 5 2 3 6 6 3 2 1 5 4 ... |
correct output |
---|
YES NO NO NO YES ... |
user output |
---|
(empty) |
Test 4
Group: 1, 2
Verdict: WRONG ANSWER
input |
---|
1000 8 7 4 2 8 6 3 5 1 8 3 8 2 7 5 4 6 1 ... |
correct output |
---|
NO NO YES NO YES ... |
user output |
---|
NO YES NO NO YES ... Truncated |