結果
問題 | No.1035 Color Box |
ユーザー |
![]() |
提出日時 | 2020-04-24 22:17:39 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 42 ms / 2,000 ms |
コード長 | 3,158 bytes |
コンパイル時間 | 2,034 ms |
コンパイル使用メモリ | 179,416 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-15 03:01:43 |
合計ジャッジ時間 | 3,069 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 36 |
ソースコード
#pragma GCC optimize("Ofast")#include<bits/stdc++.h>// #include<ext/pb_ds/assoc_container.hpp>// #include<ext/pb_ds/tree_policy.hpp>// #include<ext/pb_ds/tag_and_trait.hpp>// using namespace __gnu_pbds;// #include<boost/multiprecision/cpp_int.hpp>// namespace multiprecisioninteger = boost::multiprecision;// using cint=multiprecisioninteger::cpp_int;using namespace std;using ll=long long;#define double long doubleusing datas=pair<ll,ll>;using ddatas=pair<double,double>;using tdata=pair<ll,datas>;using vec=vector<ll>;using mat=vector<vec>;using pvec=vector<datas>;using pmat=vector<pvec>;// using llset=tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>;#define For(i,a,b) for(i=a;i<(ll)b;++i)#define bFor(i,b,a) for(i=b,--i;i>=(ll)a;--i)#define rep(i,N) For(i,0,N)#define rep1(i,N) For(i,1,N)#define brep(i,N) bFor(i,N,0)#define brep1(i,N) bFor(i,N,1)#define all(v) (v).begin(),(v).end()#define allr(v) (v).rbegin(),(v).rend()#define vsort(v) sort(all(v))#define vrsort(v) sort(allr(v))#define endl "\n"#define eb emplace_back#define print(v) cout<<v<<endl#define printyes cout<<"Yes"<<endl#define printno cout<<"No"<<endl#define printYES cout<<"YES"<<endl#define printNO cout<<"NO"<<endl#define output(v) do{bool f=0;for(auto outi:v){cout<<(f?" ":"")<<outi;f=1;}cout<<endl;}while(0)#define matoutput(v) do{for(auto outimat:v)output(outimat);}while(0)const ll mod=1000000007;// const ll mod=998244353;const ll inf=1LL<<60;const double PI = acos(-1);const double eps = 1e-9;template<class T> inline bool chmax(T& a,T b){bool x=a<b;if(x)a=b;return x;}template<class T> inline bool chmin(T& a,T b){bool x=a>b;if(x)a=b;return x;}void startupcpp(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);}double distance(ddatas x,ddatas y){double a=x.first-y.first,b=x.second-y.second;return sqrt(a*a+b*b);}ll modinv(ll a) {ll b=mod,u=1,v=0,t;while(b){t=a/b;a-=t*b; swap(a,b);u-=t*v; swap(u,v);}return (u+mod)%mod;}ll moddevide(ll a,ll b){return (a*modinv(b))%mod;}vec modncrlistp,modncrlistm;ll modncr(ll n,ll r){if(n<r)return 0;ll i,size=modncrlistp.size();if(size<=n){modncrlistp.resize(n+1);modncrlistm.resize(n+1);if(!size){modncrlistp[0]=modncrlistm[0]=1;size++;}For(i,size,n+1){modncrlistp[i]=modncrlistp[i-1]*i%mod;modncrlistm[i]=modinv(modncrlistp[i]);}}return modncrlistp[n]*modncrlistm[r]%mod*modncrlistm[n-r]%mod;}ll modpow(ll a,ll n){ll res=1;while(n>0){if(n&1)res=res*a%mod;a=a*a%mod;n>>=1;}return res;}ll gcd(ll a,ll b){if(!b)return a;return (a%b==0)?b:gcd(b,a%b);}ll lcm(ll a,ll b){return a/gcd(a,b)*b;}ll countdigits(ll n){ll ans=0;while(n){n/=10;ans++;}return ans;}ll sumdigits(ll n){ll ans=0;while(n){ans+=n%10;n/=10;}return ans;}int main(){startupcpp();// int codeforces;cin>>codeforces;while(codeforces--){ll i,N,M,ans=0,f=1;cin>>N>>M;brep1(i,M+1){(ans+=modpow(i,N)*modncr(M,i)%mod*f)%=mod;f*=-1;}print((ans+mod)%mod);// }return 0;}