結果
| 問題 |
No.685 Logical Operations
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2018-10-30 17:51:49 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,592 bytes |
| コンパイル時間 | 1,997 ms |
| コンパイル使用メモリ | 203,168 KB |
| 最終ジャッジ日時 | 2025-01-06 15:09:58 |
|
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 13 WA * 14 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
template <typename T>
class Array : public vector<T> {
public:
using vector<T>::vector;
using vector<T>::begin;
using vector<T>::end;
using vector<T>::push_back;
template <typename R>
Array<R> map(function<R(T)> f) {
Array<R> res(end() - begin());
for (auto it = begin(); it != end(); ++it) res[it - begin()] = f(*it);
return res;
}
Array<T> select(function<bool(T)> f) {
Array<T> res;
for (auto it = begin(); it != end(); ++it)
if (f(*it)) res.push_back(*it);
return res;
}
template <typename R>
R reduce(R u, function<R(R, T)> f) {
for (auto it = begin(); it != end(); ++it) u = f(u, *it);
return u;
}
template <typename U>
Array<pair<T, U>> zip(const Array<U> &b) {
assert(end() - begin() == b.end() - b.begin());
Array<pair<T, U>> res;
for (auto it = begin(); it != end(); ++it)
res.push_back({*it, b[it - begin()]});
return res;
}
Array<T> iota(T st) {
Array<T> res(end() - begin());
::iota(res.begin(), res.end(), st);
return res;
}
Array<T> slice(int st, size_t len) {
auto it = (st < 0 ? end() : begin()) + st;
return Array<T>(it, it + len);
}
void inspect() {
copy(begin(), prev(end()), ostream_iterator<T>(cout, ", "));
cout << *prev(end()) << endl;
}
};
template <int mod>
struct ModInt {
static int normal(int v) { return v < mod ? 0 <= v ? v : v + mod : v - mod; }
int val;
ModInt(int v = 0) : val(normal(v)) {}
ModInt(int64_t v) : val(normal(v % mod)) {}
ModInt operator+(const ModInt &b) const { return normal(val + b.val); }
ModInt operator-(const ModInt &b) const { return normal(val - b.val); }
ModInt operator*(const ModInt &b) const { return 1LL * val * b.val % mod; }
ModInt operator/(const ModInt &oth) const {
function<int(int, int, int, int)> modinv = [&](int a, int b, int x, int y) {
if (b == 0) return x < 0 ? x + mod : x;
return modinv(b, a - a / b * b, y, x - a / b * y);
};
return *this * modinv(oth.val, mod, 1, 0);
}
ModInt operator-() const { return mod - val; }
template<int _mod>
friend ostream& operator<<(ostream& os, ModInt<_mod> m) { return os << m.val, os; }
};
signed main() {
ios::sync_with_stdio(false);
int N;
cin >> N;
string sn = bitset<32>(N).to_string();
Array<int> asn = Array<char>(find(sn.begin(), sn.end(), '1'), sn.end())
.template map<int>([](char c) { return c - '0'; });
Array<ModInt<int(1e9 + 7)>> dp((asn.size() + 1) * 2 * 2 * 2 * 2);
dp[0] = 1;
for (int i = 0; i < asn.size(); ++i)
for (int lx = 0; lx < 2; ++lx)
for (int ly = 0; ly < 2; ++ly)
for (int l1 = 0; l1 < 2; ++l1)
for (int l2 = 0; l2 < 2; ++l2) {
int s = i << 4 | lx << 3 | ly << 2 | l1 << 1 | l2;
for (int dx = 0; dx < (lx ? 2 : asn[i] + 1); ++dx)
for (int dy = 0; dy < (ly ? 2 : dx + 1); ++dy) {
if (!l1 & (dx & dy) > (dx ^ dy)) continue;
if (!l2 & (dx ^ dy) > (dx | dy)) continue;
int ns = i + 1 << 4
| (lx | dx < asn[i]) << 3
| (ly | dy < dx) << 2
| (l1 | (dx & dy) < (dx ^ dy)) << 1
| (l2 | (dx ^ dy) < (dx | dy));
dp[ns] = dp[ns] + dp[s];
}
}
ModInt<int(1e9 + 7)> ans;
for (int lx = 0; lx < 2; ++lx)
for (int ly = 0; ly < 2; ++ly)
ans = ans + dp[asn.size() << 4 | lx << 3 | ly << 2 | 3];
cout << ans << endl;
return 0;
}