結果
| 問題 |
No.2748 Strange Clock
|
| コンテスト | |
| ユーザー |
 hotman78
|
| 提出日時 | 2024-04-21 14:53:13 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 18,608 bytes |
| コンパイル時間 | 2,931 ms |
| コンパイル使用メモリ | 224,424 KB |
| 最終ジャッジ日時 | 2025-02-21 08:12:17 |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | -- * 2 |
| other | AC * 26 TLE * 1 -- * 10 |
ソースコード
// author: hotman78
// date: 2024/04/21-14:52:40
// --- begin raw code -----------------
// #include"cpplib/util/template.hpp"
// // #include"cpplib/graph_tree/dijkstra.hpp"
// #include<atcoder/math.hpp>
//
// string to_str(lint x,const lint& b){
// string s;
// while(x){
// s+=char('0'+x%b);
// x/=b;
// }
// return s;
// }
//
// lint to_int(string s,const lint& b){
// lint x=0;
// rrep(i,s.size()){
// x=x*b+int(s[i]-'0');
// }
// return x;
// };
//
// lint cast(lint x,const int& b,const int& c){
// lint res=0,tmp=1;
// while(x){
// res+=x%b*tmp;
// tmp*=c;
// x/=b;
// }
// return res;
// };
//
// void solve(){
// lint n,m;
// cin>>n>>m;
//
// lint m1=powll(3,n);
// lint m2=powll(4,n);
// lint m3=powll(6,n);
// lint ans=0;
// map<lint, vector<lint>>val;
// rep(i,m1){
// // cerr<<to_str(i,3)<<" "<<" "<<to_int(to_str(i,3),3)<<i<<endl;
// // assert(to_int(to_str(i,3),3)==i);
// // string si=to_str(i,3);
// // lint pre3=i;
// // lint pre4=to_int(si,4)%m2;
// // lint pre6=to_int(si,6)%m3;
// if(i%3!=0)continue;
// const lint pre3=i;
// const lint pre4=cast(i,3,4);
// const lint pre6=cast(i,3,6);
// auto crt=atcoder::crt({pre3,pre4},{m1,m2}).first;
// val[((crt-pre6)%m3+m3)%m3].emplace_back(crt);
// // assert(atcoder::crt({pre3,pre4},{m1,m2}).second);
// // cerr<<val.back().first<<" "<<val.back().second<<endl;
// }
// // sort(all(val));
//
// for(auto [key,val2]:val){
// sort(all(val2));
// rep(i,val2.size()){
// if(i==0){
// if(val2[i]-val2.back()+powll(12,n)>m){
// string str3=to_str(((val2[i]-m)%m1+m1)%m1,3);
// string str4=to_str(((val2[i]-m)%m2+m2)%m2,4);
// string str6=to_str(((val2[i]-key-m)%m3+m3)%m3,6);
// ans+=(str3!=str4)||(str4!=str6)||(str6!=str3);
// }
// }else{
// if(val2[i]-val2[i-1]>m){
// string str3=to_str(((val2[i]-m)%m1+m1)%m1,3);
// string str4=to_str(((val2[i]-m)%m2+m2)%m2,4);
// string str6=to_str(((val2[i]-key-m)%m3+m3)%m3,6);
// ans+=(str3!=str4)||(str4!=str6)||(str6!=str3);
// }
// }
// }
// }
// cout<<ans<<endl;
// }
//
// int main(){
// solve();
// // lint t;cin>>t;while(t--)solve();
// }
// --- end raw code -----------------
#line 2 "cpplib/util/template.hpp"
#ifdef LOCAL
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2")
using namespace std;
#line 1 "cpplib/util/ioutil.hpp"
// template <class Head,class... Args>
// std::ostream& output(std::ostream& out,const Head& head,const Args&... args){
// out>>head;
// return output(head,args...);
// }
// template <class Head>
// std::ostream& output(std::ostream& out,const Head& head){
// out>>head;
// return out;
// }
template <typename T, typename E>
std::ostream &operator<<(std::ostream &out, std::pair<T, E> v) {
out << "(" << v.first << "," << v.second << ")";
return out;
}
// template <class... Args>
// ostream& operator<<(ostream& out,std::tuple<Args...>v){
// std::apply(output,v);
// return out;
// }
#line 11 "cpplib/util/template.hpp"
struct __INIT__ {
__INIT__() {
cin.tie(0);
ios::sync_with_stdio(false);
cout << fixed << setprecision(15);
}
} __INIT__;
typedef long long lint;
constexpr long long INF = 1LL << 60;
constexpr int IINF = 1 << 30;
constexpr double EPS = 1e-10;
#ifndef REACTIVE
#define endl '\n';
#endif
typedef vector<lint> vec;
typedef vector<vector<lint>> mat;
typedef vector<vector<vector<lint>>> mat3;
typedef vector<string> svec;
typedef vector<vector<string>> smat;
template <typename T> using V = vector<T>;
template <typename T> using VV = V<V<T>>;
#define output(t) \
{ \
bool f = 0; \
for (auto val : (t)) { \
cout << (f ? " " : "") << val; \
f = 1; \
} \
cout << endl; \
}
#define output2(t) \
{ \
for (auto i : t) \
output(i); \
}
#define debug(t) \
{ \
bool f = 0; \
for (auto i : t) { \
cerr << (f ? " " : "") << i; \
f = 1; \
} \
cerr << endl; \
}
#define debug2(t) \
{ \
for (auto i : t) \
debug(i); \
}
#define loop(n) for (long long _ = 0; _ < (long long)(n); ++_)
#define _overload4(_1, _2, _3, _4, name, ...) name
#define __rep(i, a) repi(i, 0, a, 1)
#define _rep(i, a, b) repi(i, a, b, 1)
#define repi(i, a, b, c) \
for (long long i = (long long)(a); i < (long long)(b); i += c)
#define rep(...) _overload4(__VA_ARGS__, repi, _rep, __rep)(__VA_ARGS__)
#define _overload3_rev(_1, _2, _3, name, ...) name
#define _rep_rev(i, a) repi_rev(i, 0, a)
#define repi_rev(i, a, b) \
for (long long i = (long long)(b)-1; i >= (long long)(a); --i)
#define rrep(...) _overload3_rev(__VA_ARGS__, repi_rev, _rep_rev)(__VA_ARGS__)
#define all(n) begin(n), end(n)
template <typename T, typename E> bool chmin(T &s, const E &t) {
bool res = s > t;
s = min<T>(s, t);
return res;
}
template <typename T, typename E> bool chmax(T &s, const E &t) {
bool res = s < t;
s = max<T>(s, t);
return res;
}
const vector<lint> dx = {1, 0, -1, 0, 1, 1, -1, -1};
const vector<lint> dy = {0, 1, 0, -1, 1, -1, 1, -1};
#define SUM(v) accumulate(all(v), 0LL)
#if __cplusplus >= 201703L
template <typename T, typename... Args>
auto make_vector(T x, int arg, Args... args) {
if constexpr (sizeof...(args) == 0)
return vector<T>(arg, x);
else
return vector(arg, make_vector<T>(x, args...));
}
#endif
#define bit(n, a) ((n >> a) & 1)
#define extrep(v, ...) for (auto v : make_mat_impl({__VA_ARGS__}))
vector<vector<long long>> make_mat_impl(vector<long long> v) {
if (v.empty())
return vector<vector<long long>>(1, vector<long long>());
long long n = v.back();
v.pop_back();
vector<vector<long long>> ret;
vector<vector<long long>> tmp = make_mat_impl(v);
for (auto e : tmp)
for (long long i = 0; i < n; ++i) {
ret.push_back(e);
ret.back().push_back(i);
}
return ret;
}
using graph = vector<vector<int>>;
template <typename T> using graph_w = vector<vector<pair<int, T>>>;
#if __cplusplus >= 201703L
constexpr inline long long powll(long long a, long long b) {
long long res = 1;
while (b--)
res *= a;
return res;
}
#endif
template <typename T, typename E>
pair<T, E> &operator+=(pair<T, E> &s, const pair<T, E> &t) {
s.first += t.first;
s.second += t.second;
return s;
}
template <typename T, typename E>
pair<T, E> &operator-=(pair<T, E> &s, const pair<T, E> &t) {
s.first -= t.first;
s.second -= t.second;
return s;
}
template <typename T, typename E>
pair<T, E> operator+(const pair<T, E> &s, const pair<T, E> &t) {
auto res = s;
return res += t;
}
template <typename T, typename E>
pair<T, E> operator-(const pair<T, E> &s, const pair<T, E> &t) {
auto res = s;
return res -= t;
}
#define BEGIN_STACK_EXTEND(size) \
void *stack_extend_memory_ = malloc(size); \
void *stack_extend_origin_memory_; \
char *stack_extend_dummy_memory_ = (char *)alloca( \
(1 + (int)(((long long)stack_extend_memory_) & 127)) * 16); \
*stack_extend_dummy_memory_ = 0; \
asm volatile("mov %%rsp, %%rbx\nmov %%rax, %%rsp" \
: "=b"(stack_extend_origin_memory_) \
: "a"((char *)stack_extend_memory_ + (size)-1024));
#define END_STACK_EXTEND \
asm volatile("mov %%rax, %%rsp" ::"a"(stack_extend_origin_memory_)); \
free(stack_extend_memory_);
int floor_pow(int n) { return n ? 31 - __builtin_clz(n) : 0; }
#line 2 "main.cpp"
// #include"cpplib/graph_tree/dijkstra.hpp"
#include <algorithm>
#include <cassert>
#include <tuple>
#include <vector>
#include <utility>
#ifdef _MSC_VER
#include <intrin.h>
#endif
namespace atcoder {
namespace internal {
constexpr long long safe_mod(long long x, long long m) {
x %= m;
if (x < 0)
x += m;
return x;
}
struct barrett {
unsigned int _m;
unsigned long long im;
explicit barrett(unsigned int m)
: _m(m), im((unsigned long long)(-1) / m + 1) {}
unsigned int umod() const { return _m; }
unsigned int mul(unsigned int a, unsigned int b) const {
unsigned long long z = a;
z *= b;
#ifdef _MSC_VER
unsigned long long x;
_umul128(z, im, &x);
#else
unsigned long long x =
(unsigned long long)(((unsigned __int128)(z)*im) >> 64);
#endif
unsigned int v = (unsigned int)(z - x * _m);
if (_m <= v)
v += _m;
return v;
}
};
constexpr long long pow_mod_constexpr(long long x, long long n, int m) {
if (m == 1)
return 0;
unsigned int _m = (unsigned int)(m);
unsigned long long r = 1;
unsigned long long y = safe_mod(x, m);
while (n) {
if (n & 1)
r = (r * y) % _m;
y = (y * y) % _m;
n >>= 1;
}
return r;
}
constexpr bool is_prime_constexpr(int n) {
if (n <= 1)
return false;
if (n == 2 || n == 7 || n == 61)
return true;
if (n % 2 == 0)
return false;
long long d = n - 1;
while (d % 2 == 0)
d /= 2;
constexpr long long bases[3] = {2, 7, 61};
for (long long a : bases) {
long long t = d;
long long y = pow_mod_constexpr(a, t, n);
while (t != n - 1 && y != 1 && y != n - 1) {
y = y * y % n;
t <<= 1;
}
if (y != n - 1 && t % 2 == 0) {
return false;
}
}
return true;
}
template <int n> constexpr bool is_prime = is_prime_constexpr(n);
constexpr std::pair<long long, long long> inv_gcd(long long a, long long b) {
a = safe_mod(a, b);
if (a == 0)
return {b, 0};
long long s = b, t = a;
long long m0 = 0, m1 = 1;
while (t) {
long long u = s / t;
s -= t * u;
m0 -= m1 * u; // |m1 * u| <= |m1| * s <= b
auto tmp = s;
s = t;
t = tmp;
tmp = m0;
m0 = m1;
m1 = tmp;
}
if (m0 < 0)
m0 += b / s;
return {s, m0};
}
constexpr int primitive_root_constexpr(int m) {
if (m == 2)
return 1;
if (m == 167772161)
return 3;
if (m == 469762049)
return 3;
if (m == 754974721)
return 11;
if (m == 998244353)
return 3;
int divs[20] = {};
divs[0] = 2;
int cnt = 1;
int x = (m - 1) / 2;
while (x % 2 == 0)
x /= 2;
for (int i = 3; (long long)(i)*i <= x; i += 2) {
if (x % i == 0) {
divs[cnt++] = i;
while (x % i == 0) {
x /= i;
}
}
}
if (x > 1) {
divs[cnt++] = x;
}
for (int g = 2;; g++) {
bool ok = true;
for (int i = 0; i < cnt; i++) {
if (pow_mod_constexpr(g, (m - 1) / divs[i], m) == 1) {
ok = false;
break;
}
}
if (ok)
return g;
}
}
template <int m> constexpr int primitive_root = primitive_root_constexpr(m);
unsigned long long floor_sum_unsigned(unsigned long long n,
unsigned long long m,
unsigned long long a,
unsigned long long b) {
unsigned long long ans = 0;
while (true) {
if (a >= m) {
ans += n * (n - 1) / 2 * (a / m);
a %= m;
}
if (b >= m) {
ans += n * (b / m);
b %= m;
}
unsigned long long y_max = a * n + b;
if (y_max < m)
break;
n = (unsigned long long)(y_max / m);
b = (unsigned long long)(y_max % m);
std::swap(m, a);
}
return ans;
}
} // namespace internal
} // namespace atcoder
namespace atcoder {
long long pow_mod(long long x, long long n, int m) {
assert(0 <= n && 1 <= m);
if (m == 1)
return 0;
internal::barrett bt((unsigned int)(m));
unsigned int r = 1, y = (unsigned int)(internal::safe_mod(x, m));
while (n) {
if (n & 1)
r = bt.mul(r, y);
y = bt.mul(y, y);
n >>= 1;
}
return r;
}
long long inv_mod(long long x, long long m) {
assert(1 <= m);
auto z = internal::inv_gcd(x, m);
assert(z.first == 1);
return z.second;
}
std::pair<long long, long long> crt(const std::vector<long long> &r,
const std::vector<long long> &m) {
assert(r.size() == m.size());
int n = int(r.size());
long long r0 = 0, m0 = 1;
for (int i = 0; i < n; i++) {
assert(1 <= m[i]);
long long r1 = internal::safe_mod(r[i], m[i]), m1 = m[i];
if (m0 < m1) {
std::swap(r0, r1);
std::swap(m0, m1);
}
if (m0 % m1 == 0) {
if (r0 % m1 != r1)
return {0, 0};
continue;
}
long long g, im;
std::tie(g, im) = internal::inv_gcd(m0, m1);
long long u1 = (m1 / g);
if ((r1 - r0) % g)
return {0, 0};
long long x = (r1 - r0) / g % u1 * im % u1;
r0 += x * m0;
m0 *= u1; // -> lcm(m0, m1)
if (r0 < 0)
r0 += m0;
}
return {r0, m0};
}
long long floor_sum(long long n, long long m, long long a, long long b) {
assert(0 <= n && n < (1LL << 32));
assert(1 <= m && m < (1LL << 32));
unsigned long long ans = 0;
if (a < 0) {
unsigned long long a2 = internal::safe_mod(a, m);
ans -= 1ULL * n * (n - 1) / 2 * ((a2 - a) / m);
a = a2;
}
if (b < 0) {
unsigned long long b2 = internal::safe_mod(b, m);
ans -= 1ULL * n * ((b2 - b) / m);
b = b2;
}
return ans + internal::floor_sum_unsigned(n, m, a, b);
}
} // namespace atcoder
string to_str(lint x, const lint &b) {
string s;
while (x) {
s += char('0' + x % b);
x /= b;
}
return s;
}
lint to_int(string s, const lint &b) {
lint x = 0;
rrep(i, s.size()) { x = x * b + int(s[i] - '0'); }
return x;
};
lint cast(lint x, const int &b, const int &c) {
lint res = 0, tmp = 1;
while (x) {
res += x % b * tmp;
tmp *= c;
x /= b;
}
return res;
};
void solve() {
lint n, m;
cin >> n >> m;
lint m1 = powll(3, n);
lint m2 = powll(4, n);
lint m3 = powll(6, n);
lint ans = 0;
map<lint, vector<lint>> val;
rep(i, m1) {
// cerr<<to_str(i,3)<<" "<<" "<<to_int(to_str(i,3),3)<<i<<endl;
// assert(to_int(to_str(i,3),3)==i);
// string si=to_str(i,3);
// lint pre3=i;
// lint pre4=to_int(si,4)%m2;
// lint pre6=to_int(si,6)%m3;
if (i % 3 != 0)
continue;
const lint pre3 = i;
const lint pre4 = cast(i, 3, 4);
const lint pre6 = cast(i, 3, 6);
auto crt = atcoder::crt({pre3, pre4}, {m1, m2}).first;
val[((crt - pre6) % m3 + m3) % m3].emplace_back(crt);
// assert(atcoder::crt({pre3,pre4},{m1,m2}).second);
// cerr<<val.back().first<<" "<<val.back().second<<endl;
}
// sort(all(val));
for (auto [key, val2] : val) {
sort(all(val2));
rep(i, val2.size()) {
if (i == 0) {
if (val2[i] - val2.back() + powll(12, n) > m) {
string str3 = to_str(((val2[i] - m) % m1 + m1) % m1, 3);
string str4 = to_str(((val2[i] - m) % m2 + m2) % m2, 4);
string str6 =
to_str(((val2[i] - key - m) % m3 + m3) % m3, 6);
ans += (str3 != str4) || (str4 != str6) || (str6 != str3);
}
} else {
if (val2[i] - val2[i - 1] > m) {
string str3 = to_str(((val2[i] - m) % m1 + m1) % m1, 3);
string str4 = to_str(((val2[i] - m) % m2 + m2) % m2, 4);
string str6 =
to_str(((val2[i] - key - m) % m3 + m3) % m3, 6);
ans += (str3 != str4) || (str4 != str6) || (str6 != str3);
}
}
}
}
cout << ans << endl;
}
int main() {
solve();
// lint t;cin>>t;while(t--)solve();
}