QOJ.ac
QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#318673 | #5533. Trick | minhnhatnoe | 0 | 25ms | 3688kb | C++14 | 1.7kb | 2024-01-31 16:43:33 | 2024-01-31 16:43:33 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
vector<int> gperm(int n){
vector<int> p(2*n+1); iota(p.begin(), p.end(), 0);
shuffle(p.begin(), p.end(), mt19937(24032006));
return p;
}
struct cplayer{
cplayer(){
int n; cin >> n;
vector<int> p = gperm(n);
vector<int> a(n), b(n);
vector<pair<int, int>> b_sorted(n);
for (int i=0; i<n; i++){
cin >> a[i];
b[i] = p[a[i]];
b_sorted[i] = {b[i], i};
}
sort(b_sorted.begin(), b_sorted.end());
int x = 0;
for (int i=0; i<n; i++) x = x ^ b[i];
for (int i=0; i<n; i++){
int y = x ^ b[i];
auto it = lower_bound(b_sorted.begin(), b_sorted.end(), pair<int, int> (y, -1));
if (it == b_sorted.end() || it->first != y || it->second == i) continue;
cout << a[i] << " " << a[it->second] << "\n";
return;
}
}
};
struct hplayer{
hplayer(){
int n; cin >> n;
vector<int> p = gperm(n);
int x = 0;
for (int i=0; i<p.size(); i++) x ^= p[i];
for (int i=0; i<4; i++){
int v; cin >> v; x ^= p[v];
}
cout << find(p.begin(), p.end(), x) - p.begin() << "\n";
}
};
signed main(){
cin.tie(0)->sync_with_stdio(0);
// freopen("trick.in", "r", stdin);
// freopen("trick.out", "w", stdout);
int t, r; cin >> t >> r;
if (r == 1 || r == 2){
for (int i=0; i<t; i++){
cplayer();
}
}
else{
for (int i=0; i<t; i++){
hplayer();
}
}
}
详细
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 0
Wrong Answer
time: 25ms = 0ms + 25ms
memory: 0kb,3688kb
input:
12012 1 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 4 6 6 0 1 2 3 5 6 6 0 1 2 3 5 6 6 0 1 2 3 5 6 6 0 1 2 3 5 6 6 0 1 2 3 5 6 6 0 1 2 3 5 6 6 0 1 2 3 5 ...
output:
1 4 1 4 1 4 1 4 1 4 1 4 1 4 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 6 1 6 1 6 1 6 1 6 1 6 1 6 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 3 1 3 1 3 1 3 1 3 1 3 1 3 0 5 0 5 0 5 0 5 0 5 0 5 0 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 7 1 7 1 7 1 7 1 7 1 7 1 7 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 5 1 5 1 5 1 5 1 5 ...
input:
12012 2 6 7 8 9 10 11 12 6 6 8 9 10 11 12 6 6 7 9 10 11 12 6 6 7 8 10 11 12 6 6 7 8 9 11 12 6 6 7 8 9 10 12 6 6 7 8 9 10 11 6 7 8 9 10 11 12 6 5 8 9 10 11 12 6 5 7 9 10 11 12 6 5 7 8 10 11 12 6 5 7 8 9 11 12 6 5 7 8 9 10 12 6 5 7 8 9 10 11 6 7 8 9 10 11 12 6 4 8 9 10 11 12 6 4 7 9 10 11 12 6 4 7 8 1...
output:
9 12 10 11 6 12 7 11 7 10 6 9 9 12 10 12 11 12 5 12 7 12 8 12 5 9 9 12 10 11 4 12 8 11 8 10 4 9 9 12 9 11 9 10 3 12 8 9 7 9 3 9 9 12 9 10 9 11 2 12 7 9 8 9 2 9 9 12 8 12 7 12 1 12 11 12 10 12 1 9 9 12 11 12 10 12 0 12 8 12 7 12 0 9 10 11 10 12 9 10 8 10 5 11 5 10 6 10 10 11 9 12 8 12 4 11 4 10 8 9 1...
input:
12012 3 6 1 4 9 12 6 1 4 10 11 6 1 4 6 12 6 1 4 7 11 6 1 4 7 10 6 1 4 6 9 6 1 4 9 12 6 0 1 10 12 6 0 1 11 12 6 0 1 5 12 6 0 1 7 12 6 0 1 8 12 6 0 1 5 9 6 0 1 9 12 6 1 6 10 11 6 1 6 4 12 6 1 6 8 11 6 1 6 8 10 6 1 6 4 9 6 1 6 9 12 6 1 6 9 11 6 1 2 9 10 6 1 2 3 12 6 1 2 8 9 6 1 2 7 9 6 1 2 3 9 6 1 2 9 ...
output:
6 7 9 10 11 12 6 7 8 9 10 11 12 5 8 9 10 11 12 4 0 8 9 10 11 12 3 8 8 9 10 11 12 2 13 8 9 10 11 12 1 10 8 9 10 11 12 2 8 8 9 10 11 12 5 3 9 10 11 12 4 2 5 9 10 11 12 3 4 7 9 10 11 12 2 10 13 10 11 12 1 13 11 5 10 11 12 4 8 9 10 11 12 4 8 11 1 9 12 3 0 7 1 11 10 12 2 13 13 3 6 4 12 1 9 11 5 7 8 12 2 ...
result:
wrong answer the card you returned is 9, but expected 8 (test case 3)
Subtask #2:
score: 0
Skipped
Subtask #3:
score: 0
Wrong Answer
Test #11:
score: 0
Wrong Answer
time: 19ms = 0ms + 19ms
memory: 0kb,3608kb
input:
6525 1 6 10 1 11 3 12 6 6 1 7 10 12 5 6 6 0 10 12 7 9 8 6 12 1 8 4 7 11 6 11 8 9 4 10 6 6 0 7 2 3 4 5 6 0 8 3 10 11 6 6 0 1 2 4 7 6 6 0 1 11 9 5 6 6 7 1 12 8 6 5 7 0 1 13 10 12 5 6 7 0 14 2 3 4 12 6 7 11 1 3 8 12 6 13 7 0 1 2 3 13 5 14 7 11 9 10 8 4 14 7 7 0 8 14 3 4 13 11 7 0 10 2 14 8 5 6 7 0 13 2...
output:
10 12 10 5 12 7 7 11 8 9 0 3 10 11 1 4 11 6 8 5 5 6 14 3 3 12 2 13 11 9 10 2 0 7 1 6 5 9 1 2 0 8 2 13 9 10 11 4 15 6 2 13 10 4 17 9 13 10 1 14 0 8 11 9 1 10 2 4 13 4 17 15 0 5 0 4 11 5 0 7 20 14 2 20 5 7 4 21 0 5 12 4 17 5 20 11 12 18 17 6 0 3 18 11 0 5 3 11 15 11 11 16 0 19 6 12 2 14 12 5 1 20 17 1...
input:
6525 2 6 0 2 4 5 8 9 6 2 3 4 8 9 11 6 1 2 3 4 5 11 6 0 3 5 6 9 10 6 0 1 3 5 7 12 6 1 6 8 10 11 12 6 2 4 5 7 9 12 6 5 8 9 10 11 12 6 3 4 7 8 10 12 6 0 2 3 4 9 11 7 2 3 4 7 8 9 11 7 1 5 7 8 9 10 13 7 0 4 5 7 9 10 14 7 4 6 7 8 9 10 11 7 0 1 2 3 5 6 13 7 1 2 5 7 9 10 12 7 1 3 4 9 11 12 13 7 1 3 4 6 10 1...
output:
5 9 2 8 3 5 0 5 0 7 2 5 10 12 4 7 0 2 2 9 8 13 5 10 7 10 0 5 1 9 12 13 10 14 8 10 3 7 2 16 10 13 0 14 1 14 11 13 3 15 1 9 12 18 5 14 2 3 11 15 4 15 4 17 1 10 4 9 17 19 4 18 3 18 0 11 2 6 2 11 0 13 13 17 3 10 0 19 13 17 15 18 1 13 7 15 5 6 3 6 0 6 3 19 1 18 5 13 0 22 2 7 9 14 0 17 2 16 5 15 0 2 6 11 ...
input:
6525 3 6 10 12 5 9 6 10 5 2 8 6 12 7 3 5 6 7 11 0 5 6 8 9 0 7 6 0 3 2 5 6 10 11 10 12 6 1 4 4 7 6 11 6 0 2 6 8 5 2 9 7 5 6 8 13 7 14 3 5 10 7 3 12 7 10 7 2 13 0 5 7 11 9 1 9 7 10 2 12 13 7 0 7 10 14 7 1 6 8 10 7 5 9 3 7 7 1 2 2 16 8 0 8 10 13 8 2 13 0 14 8 9 10 1 14 8 11 4 11 13 8 15 6 3 15 8 2 13 1...
output:
7 0 6 2 2 12 11 6 3 8 3 3 6 3 12 7 8 0 0 15 16 16 17 4 17 12 17 17 7 17 19 19 19 19 16 19 19 19 19 19 21 6 11 15 11 13 12 13 21 13 4 9 6 8 23 11 23 11 6 13 13 0 23 23 19 23 23 23 23 8 23 13 0 3 10 23 7 6 6 5 23 17 23 13 3 23 4 23 16 14 17 1 2 3 0 16 23 23 23 11 23 4 8 8 17 1 23 14 3 23 10 23 1 8 8 2...
result:
wrong answer the card you returned is 12, but expected 9 (test case 6)
Subtask #4:
score: 0
Skipped