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 |
---|---|---|---|---|---|---|---|---|---|
#27066 | #1817. AND Permutation | Hakujitsu | ML | 3ms | 3720kb | C++ | 1.7kb | 2022-04-09 11:46:11 | 2022-04-29 05:11:46 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
void debug_out() {cerr << endl;}
template <typename Head, typename... Tail> void debug_out(Head H, Tail... T)
{
cerr << " " << H;
debug_out(T...);
}
#ifndef ONLINE_JUDGE
#define debug(...) cerr << "{" << #__VA_ARGS__ << "}:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
int n;
using ll = long long;
int main(){
ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
cin >> n;
vector<ll> a(n);
map<ll, int> mp;
for (auto &x : a) {
cin >> x;
}
for (int i = 0; i < n; i += 1) {
mp[a[i]] = i;
}
vector<int> match(n);
for (int i = 0; i < n; i += 2) {
match[i] = i + 1;
}
match.back() = 0;
for (int d = 62; d >= 0; d -= 1) {
function<void(int, vector<int> &) > dfs = [&](int id, vector<int> &lst) {
// vis[id] = vis[match[id]] = 1;
if(!(a[id] >> d & 1)) {
lst.emplace_back(id);
return;
}
int go = mp[a[id] - (1ll << d)];
lst.emplace_back(go);
lst.emplace_back(id);
dfs(match[go], lst);
};
for (int i = 0; i < n; i += 1) {
if(!(a[match[i]] >> d & 1) || !(a[i] >> d & 1)) {
continue;
}
vector<int> lst = {i};
dfs(match[i], lst);
for (int j = 0; j < lst.size(); j += 2) {
match[lst[j]] = lst[j + 1];
match[lst[j + 1]] = lst[j];
}
}
}
for (int i = 0; i < n; i += 1) {
cout << a[match[i]] << "\n";
}
return 0;
}
详细
Test #1:
score: 100
Accepted
time: 3ms
memory: 3720kb
input:
6 0 1 4 5 2 6
output:
5 6 2 0 4 1
result:
ok OK!
Test #2:
score: -100
Memory Limit Exceeded
input:
272 315 138 126 6 394 297 44 273 84 200 9 197 396 133 16 46 65 87 86 336 316 174 140 162 250 306 52 188 57 36 63 192 320 388 10 156 15 208 38 32 31 228 30 305 234 384 220 142 72 27 337 110 94 317 304 242 398 209 5 323 29 284 301 309 244 230 261 61 254 266 194 296 275 313 80 206 214 88 308 18 288 106...