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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#343163 | #1817. AND Permutation | LaStataleBlue# | WA | 0ms | 4032kb | C++23 | 3.3kb | 2024-03-02 00:45:57 | 2024-03-02 00:45:59 |
Judging History
answer
#pragma ide diagnostic ignored "misc-no-recursion"
#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef long double db;
#define TESTCASE 0
static void solve([[maybe_unused]] int tc) {
int n;
cin >> n;
vector<long long> a(n);
for (int i = 0; i < n; i++)cin >> a[i];
if (n == 1) {
cout << "0\n";
return;
}
auto solve = [&](auto &solve, int pos, vector<long long> v) -> map<long long, long long> {
if (v.size() == 0) {
return map<long long, long long>();
}
if (v.size() == 2) {
return map<long long, long long>{{v[0], v[1]},
{v[1], v[0]}};
}
if (v.size() == 1) {
return map<long long, long long>{{v[0], v[0]}};
}
//cout << pos << " bit\n";
//for (auto i: v)cout << i << " ";
//cout << "\n";
map<long long, long long> res;
if (v.size() % 2 == 1) {
for (int i = 0; i < (int) v.size(); i++) {
if ((v[i] & ((1ll << pos) - 1)) == 0) {
res[v[i]] = v[i];
v.erase(v.begin() + i);
break;
}
}
}
//for (auto i: v)cout << i << " ";
//cout << "\n";
vector<long long> v0, v1;
for (auto i: v) {
if (i & (1ll << pos))v1.push_back(i);
else v0.push_back(i);
}
map<long long, long long> sol0, sol1;
sol0 = solve(solve, pos - 1, v0);
sol1 = solve(solve, pos - 1, v1);
map<long long, int> col;
auto dfs = [&](auto &dfs, long long pos, int mode) -> void {
//cout << pos << " dfs\n";
if (col.find(pos) != col.end())return;
col[pos] = mode;
dfs(dfs, sol1[pos], mode ^ 1);
if (sol0.find(pos ^ (1ll << pos)) != sol0.end())
if (sol1.find(sol0[pos ^ (1ll << pos)] ^ (1ll << pos)) != sol1.end()) {
dfs(dfs, sol0[pos ^ (1ll << pos)] ^ (1ll << pos), mode ^ 1);
}
};
for (auto i: v1)if (sol1[i] != i)dfs(dfs, i, 0);
int loop0 = -1, loop1 = -1;
for (auto [i, j]: sol0) {
if (i == j)loop0 = i;
}
for (auto [i, j]: sol1) {
if (i == j)loop1 = i;
}
if (loop0 != -1 && loop1 != -1) {
sol0[loop0] = loop1;
sol1[loop1] = loop0;
}
for (auto [i, j]: sol1) {
if (col[i] == 1) {
int a = i ^ (1ll << pos);
int b = sol0[a];
sol1[i] = b;
sol1[j] = a;
sol0[a] = j;
sol0[b] = i;
}
}
for (auto [i, j]: sol0)res[i] = j;
for (auto [i, j]: sol1)res[i] = j;
return res;
};
auto sol = solve(solve, 59, a);
for (int i = 0; i < n; i++) {
cout << sol[a[i]] << "\n";
}
}
int main() {
ios::sync_with_stdio(false);
if (const char *f = getenv("REDIRECT_STDOUT"); f) {
freopen(f, "w", stdout);
}
int T = 1;
#if TESTCASE
cin >> T;
#endif
for (int t = 1; t <= T; t++) {
solve(t);
}
return 0;
}
Details
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Test #1:
score: 100
Accepted
time: 0ms
memory: 3680kb
input:
6 0 1 4 5 2 6
output:
4 6 0 2 5 1
result:
ok OK!
Test #2:
score: -100
Wrong Answer
time: 0ms
memory: 4032kb
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...
output:
4 420 128 416 36 22 339 46 298 310 246 282 2 90 238 273 274 8 168 3 67 80 114 285 260 13 202 322 390 394 256 318 19 34 309 98 304 303 216 252 288 154 289 142 276 14 291 305 55 292 130 144 160 66 15 269 17 262 122 28 386 35 82 10 259 24 58 258 0 53 60 23 236 134 174 48 40 422 11 69 31 149 264 68 72 1...
result:
wrong answer Bit and of corresponding values not zero.