結果

問題 No.1800 Random XOR
ユーザー MtSakaMtSaka
提出日時 2022-01-08 08:01:44
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 6,621 bytes
コンパイル時間 2,039 ms
コンパイル使用メモリ 195,512 KB
実行使用メモリ 6,948 KB
最終ジャッジ日時 2024-04-26 19:12:19
合計ジャッジ時間 2,615 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 WA -
testcase_01 WA -
testcase_02 WA -
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
testcase_13 WA -
testcase_14 WA -
testcase_15 WA -
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 # 

#line 2 "library/template/template.hpp"
//#pragma GCC target("avx")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
#define overload4(a,b,c,d,e,...) e
#define overload3(a,b,c,d,...) d
#define rep1(a) for(ll i=0;i<(ll)(a);i++)
#define rep2(i,a) for(ll i=0;i<(ll)(a);i++)
#define rep3(i,a,b) for(ll i=(ll)(a);i<(ll)(b);i++)
#define rep4(i,a,b,c) for(ll i=(ll)(a);i<(ll)(b);i+=(ll)(c))
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define rrep1(a) for(ll i=(ll)(a)-1;i>=0;i--)
#define rrep2(i,a) for(ll i=(ll)(a)-1;i>=0;i--)
#define rrep3(i,a,b) for(ll i=(ll)(b)-1;i>=(ll)(a);i--)
#define rrep(...) overload3(__VA_ARGS__,rrep3,rrep2,rrep1)(__VA_ARGS__)
#define all1(i) begin(i),end(i)
#define all2(i,a) begin(i),begin(i)+a
#define all3(i,a,b) begin(i)+a,begin(i)+b
#define all(...) overload3(__VA_ARGS__,all3,all2,all1)(__VA_ARGS__)
#define rall(n) (n).rbegin(),(n).rend()
#define INT(...) int __VA_ARGS__;scan(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__;scan(__VA_ARGS__)
#define STR(...) string __VA_ARGS__;scan(__VA_ARGS__)
#define CHR(...) char __VA_ARGS__;scan(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__;scan(__VA_ARGS__)
#define LD(...) ld __VA_ARGS__;scan(__VA_ARGS__)
#define pb push_back
#define eb emplace_back
#define END(...) {print(__VA_ARGS__);return;}
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
using vl=vector<ll>;
using vi=vector<int>;
using vs=vector<string>;
using vc=vector<char>;
using vvl=vector<vl>;
using pi=pair<int,int>;
using pl=pair<ll,ll>;
using vvc=vector<vc>;
using vd=vector<double>;
using vp=vector<pl>;
using vb=vector<bool>;
const int dx[8]={1,0,-1,0,1,-1,-1,1};
const int dy[8]={0,1,0,-1,1,1,-1,-1};
const ll MOD=1000000007;
const ll mod=998244353;
const ld EPS=1e-8;
const ld PI=3.1415926535897932384626;
template<typename T,typename U>
ostream &operator<<(ostream&os,const pair<T,U>&p){os<<p.first<<" "<<p.second;return os;}
template<typename T,typename U>
istream &operator>>(istream&is,pair<T,U>&p){is>>p.first>>p.second;return is;}
template<typename T>
ostream &operator<<(ostream&os,const vector<T>&v){for(int i=0;i<(int)v.size();i++){os<<v[i]<<(i+1!=v.size()?" ":"");}return os;}
template<typename T>
istream &operator>>(istream&is,vector<T>&v){for(T &in:v){is>>in;}return is;}
void scan(){}
template<class Head,class... Tail>
void scan(Head&head,Tail&... tail){cin>>head;scan(tail...);}
template<class T>
void print(const T &t){cout<<t<<'\n';}
template<class Head, class... Tail>
void print(const Head &head, const Tail &... tail){cout<<head<<' ';print(tail...);}
template<class... T>
void fin(const T &... a){print(a...);exit(0);}
template<typename T,typename U>
inline bool chmax(T&a,U b){return a<b&&(a=b,true);}
template<typename T,typename U>
inline bool chmin(T&a,U b){return a>b&&(a=b,true);}
template<typename T>
class infinity{
  public:
  static const T MAX=numeric_limits<T>::max();
  static const T MIN=numeric_limits<T>::min();
  static const T value=numeric_limits<T>::max()/2;
  static const T mvalue=numeric_limits<T>::min()/2;
};
#if __cplusplus <= 201402L
template<class T>const T infinity<T>::value;
template<class T>const T infinity<T>::mvalue;
template<class T>const T infinity<T>::max;
template<class T>const T infinity<T>::min;
#endif
template<typename T>const T inf=infinity<T>::value;
inline int popcnt(ull x){
#if __cplusplus>=202002L
return popcount(x);
#endif
x=(x&0x5555555555555555)+((x>>1)&0x5555555555555555);x=(x&0x3333333333333333)+((x>>2)&0x3333333333333333);x=(x&0x0f0f0f0f0f0f0f0f)+((x>>4)&0x0f0f0f0f0f0f0f0f);x=(x&0x00ff00ff00ff00ff)+((x>>8)&0x00ff00ff00ff00ff);x=(x&0x0000ffff0000ffff)+((x>>16)&0x0000ffff0000ffff);return (x&0x00000000ffffffff)+((x>>32)&0x00000000ffffffff);
}
void dump(const char&t){cerr<<t;}
void dump(const string&t){cerr<<t;}
void dump(const bool&t){cerr<<(t?"true":"false");}
template<typename T>
void dump(const T&t,enable_if_t<is_integral<T>::value>* =nullptr){string tmp;if(t==infinity<T>::value||t==infinity<T>::MAX)tmp="inf";if(t==infinity<T>::mvalue||t==infinity<T>::MIN)tmp="-inf";if(tmp.empty())tmp=to_string(t);cerr<<tmp;}
template <typename T>
void dump(const T&t,enable_if_t<!is_void<typename T::iterator>::value>* =nullptr){cerr<<"{";for(auto it=t.begin();it!=t.end();){dump(*it);cerr<<(++it==t.end()?"":",");}cerr<<"}";}
template<typename T,typename U>
void dump(const pair<T,U>&t){cerr<<"(";dump(t.first);cerr<<",";dump(t.second);cerr<<")";}
void trace(){cerr<<endl;}
template<typename Head,typename... Tail>
void trace(Head&&head,Tail&&... tail){dump(head);if(sizeof...(tail))cerr<<",";trace(forward<Tail>(tail)...);}
#ifdef ONLINE_JUDGE
#define debug(...)
#else
#define debug(...) cerr<<#__VA_ARGS__<<"=";trace(__VA_ARGS__);
#endif
struct IOSetup{IOSetup(){cin.tie(nullptr);ios::sync_with_stdio(false);cout.tie(0);cout<<fixed<<setprecision(12);cerr<<fixed<<setprecision(12);}};
/**
 * @brief Template(テンプレート)
*/
#line 1 "library/Math/modint.hpp"
/**
 * @brief modint
*/
template<long long m>
struct modint{
  long long x;
  modint():x(0){}
  modint(long long y){
    if(y<0){
      y%=m;
      if(y==0)x=y;
      else x=m+y;
    }
    else if(y<m)x=y;
    else x=y%m;
  }
  modint inv()const{
    long long a=x,b=m,u=1,v=0,t;
    while(b){
      t=a/b;
      swap(a-=t*b,b);
      swap(u-=t*v,v);
    }
    return modint(u);
  }
  modint &operator+=(const modint&p){if((x+=p.x)>=m)x-=m;return *this;}
  modint &operator-=(const modint&p){if((x+=m-p.x)>=m)x-=m;return *this;}
  modint &operator*=(const modint&p){x=x*p.x;if(x>=m)x%=m;return *this;}
  modint &operator/=(const modint&p){*this*=p.inv();return *this;}
  modint operator-()const{return modint(-x); }
  modint operator+(const modint&p)const{return modint(*this)+=p; }
  modint operator-(const modint&p)const{return modint(*this)-=p; }
  modint operator*(const modint&p)const{return modint(*this)*=p; }
  modint operator/(const modint&p)const{return modint(*this)/=p; }
  bool operator==(const modint&p)const{return x==p.x;}
  bool operator!=(const modint&p)const{return x!=p.x;}
  modint pow(long long n)const{
    modint ret(1),mul(x);
    while(n){
      if(n&1)ret*=mul;
      mul*=mul;
      n>>=1;
    }
    return ret;
  }
  friend ostream &operator<<(ostream &os,const modint&p) {
    return os<<p.x;
  }
  friend istream &operator>>(istream &is, modint &a) {
    long long t;
    is>>t;
    a=modint<m>(t);
    return (is);
  }
  static long long get_mod(){return m;}
};
#line 3 "code.cpp"
int main(){
  using mint=modint<MOD>;
  LL(n,m);
  print(mint(2).pow(m-1)/mint(2)-mint(2).inv());
}
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