結果
| 問題 |
No.492 IOI数列
|
| コンテスト | |
| ユーザー |
ei1333333
|
| 提出日時 | 2017-03-10 23:26:50 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
AC
|
| 実行時間 | 8 ms / 1,000 ms |
| コード長 | 10,293 bytes |
| コンパイル時間 | 2,546 ms |
| コンパイル使用メモリ | 194,300 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-06-24 08:46:42 |
| 合計ジャッジ時間 | 3,217 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 19 |
ソースコード
#include<bits/stdc++.h>
using namespace std;
// ごめんなさいその2
const int base = 1000000000;
const int base_digits = 9;
struct bigint
{
vector< int > a;
int sign;
bigint() :
sign(1)
{
}
bigint(long long v)
{
*this = v;
}
bigint(const string &s)
{
read(s);
}
void operator=(const bigint &v)
{
sign = v.sign;
a = v.a;
}
void operator=(long long v)
{
sign = 1;
if(v < 0)
sign = -1, v = -v;
for(; v > 0; v = v / base)
a.push_back(v % base);
}
bigint operator+(const bigint &v) const
{
if(sign == v.sign) {
bigint res = v;
for(int i = 0, carry = 0; i < (int) max(a.size(), v.a.size()) || carry; ++i) {
if(i == (int) res.a.size())
res.a.push_back(0);
res.a[i] += carry + (i < (int) a.size() ? a[i] : 0);
carry = res.a[i] >= base;
if(carry)
res.a[i] -= base;
}
return res;
}
return *this - (-v);
}
bigint operator-(const bigint &v) const
{
if(sign == v.sign) {
if(abs() >= v.abs()) {
bigint res = *this;
for(int i = 0, carry = 0; i < (int) v.a.size() || carry; ++i) {
res.a[i] -= carry + (i < (int) v.a.size() ? v.a[i] : 0);
carry = res.a[i] < 0;
if(carry)
res.a[i] += base;
}
res.trim();
return res;
}
return -(v - *this);
}
return *this + (-v);
}
void operator*=(int v)
{
if(v < 0)
sign = -sign, v = -v;
for(int i = 0, carry = 0; i < (int) a.size() || carry; ++i) {
if(i == (int) a.size())
a.push_back(0);
long long cur = a[i] * (long long) v + carry;
carry = (int) (cur / base);
a[i] = (int) (cur % base);
//asm("divl %%ecx" : "=a"(carry), "=d"(a[i]) : "A"(cur), "c"(base));
}
trim();
}
bigint operator*(int v) const
{
bigint res = *this;
res *= v;
return res;
}
friend pair< bigint, bigint > divmod(const bigint &a1, const bigint &b1)
{
int norm = base / (b1.a.back() + 1);
bigint a = a1.abs() * norm;
bigint b = b1.abs() * norm;
bigint q, r;
q.a.resize(a.a.size());
for(int i = a.a.size() - 1; i >= 0; i--) {
r *= base;
r += a.a[i];
int s1 = r.a.size() <= b.a.size() ? 0 : r.a[b.a.size()];
int s2 = r.a.size() <= b.a.size() - 1 ? 0 : r.a[b.a.size() - 1];
int d = ((long long) base * s1 + s2) / b.a.back();
r -= b * d;
while(r < 0)
r += b, --d;
q.a[i] = d;
}
q.sign = a1.sign * b1.sign;
r.sign = a1.sign;
q.trim();
r.trim();
return make_pair(q, r / norm);
}
bigint operator/(const bigint &v) const
{
return divmod(*this, v).first;
}
bigint operator%(const bigint &v) const
{
return divmod(*this, v).second;
}
void operator/=(int v)
{
if(v < 0)
sign = -sign, v = -v;
for(int i = (int) a.size() - 1, rem = 0; i >= 0; --i) {
long long cur = a[i] + rem * (long long) base;
a[i] = (int) (cur / v);
rem = (int) (cur % v);
}
trim();
}
bigint operator/(int v) const
{
bigint res = *this;
res /= v;
return res;
}
int operator%(int v) const
{
if(v < 0)
v = -v;
int m = 0;
for(int i = a.size() - 1; i >= 0; --i)
m = (a[i] + m * (long long) base) % v;
return m * sign;
}
void operator+=(const bigint &v)
{
*this = *this + v;
}
void operator-=(const bigint &v)
{
*this = *this - v;
}
void operator*=(const bigint &v)
{
*this = *this * v;
}
void operator/=(const bigint &v)
{
*this = *this / v;
}
bool operator<(const bigint &v) const
{
if(sign != v.sign)
return sign < v.sign;
if(a.size() != v.a.size())
return a.size() * sign < v.a.size() * v.sign;
for(int i = a.size() - 1; i >= 0; i--)
if(a[i] != v.a[i])
return a[i] * sign < v.a[i] * sign;
return false;
}
bool operator>(const bigint &v) const
{
return v < *this;
}
bool operator<=(const bigint &v) const
{
return !(v < *this);
}
bool operator>=(const bigint &v) const
{
return !(*this < v);
}
bool operator==(const bigint &v) const
{
return !(*this < v) && !(v < *this);
}
bool operator!=(const bigint &v) const
{
return *this < v || v < *this;
}
void trim()
{
while(!a.empty() && !a.back())
a.pop_back();
if(a.empty())
sign = 1;
}
bool isZero() const
{
return a.empty() || (a.size() == 1 && !a[0]);
}
bigint operator-() const
{
bigint res = *this;
res.sign = -sign;
return res;
}
bigint abs() const
{
bigint res = *this;
res.sign *= res.sign;
return res;
}
long long longValue() const
{
long long res = 0;
for(int i = a.size() - 1; i >= 0; i--)
res = res * base + a[i];
return res * sign;
}
friend bigint gcd(const bigint &a, const bigint &b)
{
return b.isZero() ? a : gcd(b, a % b);
}
friend bigint lcm(const bigint &a, const bigint &b)
{
return a / gcd(a, b) * b;
}
void read(const string &s)
{
sign = 1;
a.clear();
int pos = 0;
while(pos < (int) s.size() && (s[pos] == '-' || s[pos] == '+')) {
if(s[pos] == '-')
sign = -sign;
++pos;
}
for(int i = s.size() - 1; i >= pos; i -= base_digits) {
int x = 0;
for(int j = max(pos, i - base_digits + 1); j <= i; j++)
x = x * 10 + s[j] - '0';
a.push_back(x);
}
trim();
}
friend istream &operator>>(istream &stream, bigint &v)
{
string s;
stream >> s;
v.read(s);
return stream;
}
friend ostream &operator<<(ostream &stream, const bigint &v)
{
if(v.sign == -1)
stream << '-';
stream << (v.a.empty() ? 0 : v.a.back());
for(int i = (int) v.a.size() - 2; i >= 0; --i)
stream << setw(base_digits) << setfill('0') << v.a[i];
return stream;
}
static vector< int > convert_base(const vector< int > &a, int old_digits, int new_digits)
{
vector< long long > p(max(old_digits, new_digits) + 1);
p[0] = 1;
for(int i = 1; i < (int) p.size(); i++)
p[i] = p[i - 1] * 10;
vector< int > res;
long long cur = 0;
int cur_digits = 0;
for(int i = 0; i < (int) a.size(); i++) {
cur += a[i] * p[cur_digits];
cur_digits += old_digits;
while(cur_digits >= new_digits) {
res.push_back(int(cur % p[new_digits]));
cur /= p[new_digits];
cur_digits -= new_digits;
}
}
res.push_back((int) cur);
while(!res.empty() && !res.back())
res.pop_back();
return res;
}
typedef vector< long long > vll;
static vll karatsubaMultiply(const vll &a, const vll &b)
{
int n = a.size();
vll res(n + n);
if(n <= 32) {
for(int i = 0; i < n; i++)
for(int j = 0; j < n; j++)
res[i + j] += a[i] * b[j];
return res;
}
int k = n >> 1;
vll a1(a.begin(), a.begin() + k);
vll a2(a.begin() + k, a.end());
vll b1(b.begin(), b.begin() + k);
vll b2(b.begin() + k, b.end());
vll a1b1 = karatsubaMultiply(a1, b1);
vll a2b2 = karatsubaMultiply(a2, b2);
for(int i = 0; i < k; i++)
a2[i] += a1[i];
for(int i = 0; i < k; i++)
b2[i] += b1[i];
vll r = karatsubaMultiply(a2, b2);
for(int i = 0; i < (int) a1b1.size(); i++)
r[i] -= a1b1[i];
for(int i = 0; i < (int) a2b2.size(); i++)
r[i] -= a2b2[i];
for(int i = 0; i < (int) r.size(); i++)
res[i + k] += r[i];
for(int i = 0; i < (int) a1b1.size(); i++)
res[i] += a1b1[i];
for(int i = 0; i < (int) a2b2.size(); i++)
res[i + n] += a2b2[i];
return res;
}
bigint operator*(const bigint &v) const
{
vector< int > a6 = convert_base(this->a, base_digits, 6);
vector< int > b6 = convert_base(v.a, base_digits, 6);
vll a(a6.begin(), a6.end());
vll b(b6.begin(), b6.end());
while(a.size() < b.size())
a.push_back(0);
while(b.size() < a.size())
b.push_back(0);
while(a.size() & (a.size() - 1))
a.push_back(0), b.push_back(0);
vll c = karatsubaMultiply(a, b);
bigint res;
res.sign = sign * v.sign;
for(int i = 0, carry = 0; i < (int) c.size(); i++) {
long long cur = c[i] + carry;
res.a.push_back((int) (cur % 1000000));
carry = (int) (cur / 1000000);
}
res.a = convert_base(res.a, 6, base_digits);
res.trim();
return res;
}
};
struct Matrix
{
bigint m;
vector< vector< bigint > > a;
Matrix(int N, bigint mod)
{
m = mod;
a.resize(N, vector< bigint >(N));
}
Matrix operator+(const Matrix &kj)
{
Matrix ret(a.size(), m);
for(int i = 0; i < a.size(); i++) {
for(int j = 0; j < a.size(); j++) {
ret.a[i][j] = a[i][j] + kj.a[i][j];
ret.a[i][j] = ret.a[i][j] % m;
}
}
return (ret);
}
Matrix operator*(const Matrix &kj)
{
Matrix ret = Matrix::Zero(a.size(), m);
for(int i = 0; i < a.size(); i++) {
for(int j = 0; j < a.size(); j++) {
for(int k = 0; k < a.size(); k++) {
ret.a[i][j] = (ret.a[i][j] + a[i][k] * kj.a[k][j]) % m;
}
}
}
return (ret);
}
Matrix operator^(long long n)
{
Matrix ret = Matrix::I(a.size(), m);
Matrix x = *this;
while(n > 0) {
if(n & 1) (ret = ret * x);
x = x * x;
n >>= 1;
}
return (ret);
}
static Matrix Zero(int N, bigint m)
{
Matrix ret(N, m);
for(int i = 0; i < N; i++) {
for(int j = 0; j < N; j++) ret.a[i][j] = 0;
}
return (ret);
}
static Matrix I(int N, bigint m)
{
Matrix ret(N, m);
for(int i = 0; i < N; i++) {
for(int j = 0; j < N; j++) ret.a[i][j] = i == j;
}
return (ret);
}
};
int main()
{
Matrix tt1(2, bigint("1000000007"));
Matrix tt2(2, bigint("101010101010101010101"));
tt1.a = {{100, 0, 1},
{1, 0, 0},
{0, 0, 1}};
tt2.a = {{100, 0, 1},
{1, 0, 0},
{0, 0, 1}};
long long N;
cin >> N;
N--;
auto p = tt1 ^N;
auto q = tt2 ^N;
cout << (p.a[0][0] + p.a[0][2]) % bigint("1000000007") << endl;
cout << (q.a[0][0] + q.a[0][2]) % bigint("101010101010101010101") << endl;
}
ei1333333