結果
| 問題 |
No.1377 Half xor Half
|
| コンテスト | |
| ユーザー |
risujiroh
|
| 提出日時 | 2021-02-05 23:52:57 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 3 ms / 2,000 ms |
| コード長 | 2,819 bytes |
| コンパイル時間 | 1,724 ms |
| コンパイル使用メモリ | 198,848 KB |
| 最終ジャッジ日時 | 2025-01-18 13:14:32 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 46 |
ソースコード
#include <bits/stdc++.h>
#pragma region my_template
struct Rep {
struct I {
int i;
void operator++() { ++i; }
int operator*() const { return i; }
bool operator!=(I o) const { return i < *o; }
};
const int l_, r_;
Rep(int l, int r) : l_(l), r_(r) {}
Rep(int n) : Rep(0, n) {}
I begin() const { return {l_}; }
I end() const { return {r_}; }
};
struct Per {
struct I {
int i;
void operator++() { --i; }
int operator*() const { return i; }
bool operator!=(I o) const { return i > *o; }
};
const int l_, r_;
Per(int l, int r) : l_(l), r_(r) {}
Per(int n) : Per(0, n) {}
I begin() const { return {r_ - 1}; }
I end() const { return {l_ - 1}; }
};
template <class F>
struct Fix : private F {
Fix(F f) : F(f) {}
template <class... Args>
decltype(auto) operator()(Args&&... args) const {
return F::operator()(*this, std::forward<Args>(args)...);
}
};
template <class T = int>
T scan() {
T res;
std::cin >> res;
return res;
}
template <class T, class U = T>
bool chmin(T& a, U&& b) {
return b < a ? a = std::forward<U>(b), true : false;
}
template <class T, class U = T>
bool chmax(T& a, U&& b) {
return a < b ? a = std::forward<U>(b), true : false;
}
#ifndef LOCAL
#define DUMP(...) void(0)
template <int OnlineJudge, int Local>
constexpr int OjLocal = OnlineJudge;
#endif
using namespace std;
#define ALL(c) begin(c), end(c)
#pragma endregion
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
cout << fixed << setprecision(20);
int n = scan();
auto s = scan<string>();
auto t = scan<string>();
vector<int> a(n), b(n);
for (int i : Rep(n)) {
a[i] = 2 * (s[i] & 1) + (s[n + i] & 1);
b[i] = 2 * (t[i] & 1) + (t[n + i] & 1);
if ((a[i] == 0) ^ (b[i] == 0)) {
cout << "-1\n";
exit(0);
}
}
vector<int> ans;
auto go = [&](int x) {
ans.push_back(x);
if (0 <= x and x < n) {
for (int i : Rep(n))
if (i < x and a[i] & 2)
a[i] ^= 1;
else if (i >= x and a[i] & 1)
a[i] ^= 2;
} else if (n <= x and x < 2 * n) {
x -= n;
for (int i : Rep(n))
if (i < x and a[i] & 1)
a[i] ^= 2;
else if (i >= x and a[i] & 2)
a[i] ^= 1;
} else
assert(false);
};
for (int i : Rep(n)) {
if (a[i] == 1 and b[i] == 2) go(0), go(n + i);
if (a[i] == 2 and b[i] == 1) go(n), go(i);
if (a[i] == 1 and b[i] == 3) go(n + i), go(0);
if (a[i] == 3 and b[i] == 1) go(0), go(n + i);
if (a[i] == 2 and b[i] == 3) go(i), go(n);
if (a[i] == 3 and b[i] == 2) go(n), go(i);
assert(a[i] == b[i]);
}
cout << size(ans) << '\n';
for (auto&& e : ans) cout << e << '\n';
}
risujiroh