結果

問題 No.403 2^2^2
ユーザー koyumeishi
提出日時 2016-07-22 23:46:11
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 22 ms / 2,000 ms
コード長 7,580 bytes
コンパイル時間 1,311 ms
コンパイル使用メモリ 113,852 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-11-06 15:18:02
合計ジャッジ時間 2,500 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 3
other AC * 27
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

/*
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################ ######### ###############
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######## ######### ########################
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# # # # # # #### #### #### #### ####
# # # # # ## # # # # # # #____# ##
# #/ # # ## # # # # # # # #^^^^ #
## ###/# # # # #### #### ###/# #### #
#
##
*/
#include <iostream>
#include <vector>
#include <cstdio>
#include <sstream>
#include <map>
#include <string>
#include <algorithm>
#include <queue>
#include <cmath>
#include <functional>
#include <set>
#include <ctime>
#include <random>
#include <chrono>
#include <cassert>
using namespace std;
namespace {
using Integer = __int128;
template<class T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;}
template<class T> istream& operator , (istream& is, T& val){ return is >> val;}
template<class T> ostream& operator << (ostream& os, const vector<T>& vec){for(int i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"":" "
      ); return os;}
template<class T> ostream& operator , (ostream& os, const T& val){ return os << " " << val;}
template<class H> void print(const H& head){ cout << head; }
template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); }
template<class ... T> void println(const T& ... values){ print(values...); cout << endl; }
template<class H> void eprint(const H& head){ cerr << head; }
template<class H, class ... T> void eprint(const H& head, const T& ... tail){ cerr << head << " "; eprint(tail...); }
template<class ... T> void eprintln(const T& ... values){ eprint(values...); cerr << endl; }
class range{
long long start_, end_, step_;
public:
struct range_iterator{
long long val, step_;
range_iterator(long long v, long long step) : val(v), step_(step) {}
long long operator * (){return val;}
void operator ++ (){val += step_;}
bool operator != (range_iterator& x){return step_ > 0 ? val < x.val : val > x.val;}
};
range(long long len) : start_(0), end_(len), step_(1) {}
range(long long start, long long end) : start_(start), end_(end), step_(1) {}
range(long long start, long long end, long long step) : start_(start), end_(end), step_(step) {}
range_iterator begin(){ return range_iterator(start_, step_); }
range_iterator end(){ return range_iterator( end_, step_); }
};
string operator "" _s (const char* str, size_t size){ return move(string(str)); }
constexpr Integer my_pow(Integer x, Integer k, Integer z=1){return k==0 ? z : k==1 ? z*x : (k&1) ? my_pow(x*x,k>>1,z*x) : my_pow(x*x,k>>1,z);}
constexpr Integer my_pow_mod(Integer x, Integer k, Integer M, Integer z=1){return k==0 ? z%M : k==1 ? z*x%M : (k&1) ? my_pow_mod(x*x%M,k>>1,M,z*x%M
      ) : my_pow_mod(x*x%M,k>>1,M,z);}
constexpr unsigned long long operator "" _ten (unsigned long long value){ return my_pow(10,value); }
inline int k_bit(Integer x, int k){return (x>>k)&1;} //0-indexed
mt19937 mt(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count());
template<class T> string join(const vector<T>& v, const string& sep){
stringstream ss; for(int i=0; i<v.size(); i++){ if(i>0) ss << sep; ss << v[i]; } return ss.str();
}
string operator * (string s, int k){ string ret; while(k){ if(k&1) ret += s; s += s; k >>= 1; } return ret; }
}
constexpr long long mod = 9_ten + 7;
Integer power_mod(Integer x, Integer y, Integer mod){
Integer ret = 1;
while(y){
if(y&1) ret = (ret*x) % mod;
x = (x*x) % mod;
y >>= 1;
}
return ret;
}
//find k such that x^k = y (mod z)
//x and z are co-prime
//x^(aH-b) = y (mod z)
//x^aH = y * x^b (mod z)
Integer baby_step_giant_step(Integer x, Integer y, long long z){
Integer H = sqrt(z) + 1;
set<pair<int,Integer>> S;
for(Integer i=0, w=y; i<H; i++, w=(w*x)%z){
S.insert({w,i});
}
Integer k = -1;
Integer x_H = power_mod(x, H, z);
for(Integer i=1, w=x_H; i<=H; i++, w=(w*x_H)%z){
auto itr = S.lower_bound({w+1, 0});
if(itr == S.begin()) continue;
itr--;
if(itr->first == w){
return H * i - itr->second;
}
}
return k;
}
Integer get_order(Integer a, Integer b){
return baby_step_giant_step(a, 1, b);
}
int main(){
string s;
cin >> s;
s += '^';
vector<Integer> v(3, 0);
for(int i=0, k=0; i<3; k++){
while(s[k] != '^'){
v[i] = v[i] * 10 + (s[k] - '0');
k++;
}
i++;
}
v[0] %= mod;
if(v[0] == 0){
println(0,0);
return 0;
}
if(v[0] == 1){
println(1,1);
return 0;
}
Integer ord_a = get_order(v[0], mod);
Integer ans_1 = my_pow_mod(v[0] % mod, v[1], mod);
ans_1 = my_pow_mod(ans_1, v[2], mod);
Integer ans_2 = my_pow_mod(v[0] % mod, my_pow_mod(v[1] % ord_a, v[2], ord_a), mod);
println((long long)ans_1, (long long)ans_2);
return 0;
}
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