結果
問題 | No.117 組み合わせの数 |
ユーザー |
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提出日時 | 2018-08-31 09:07:26 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 238 ms / 5,000 ms |
コード長 | 3,286 bytes |
コンパイル時間 | 1,779 ms |
コンパイル使用メモリ | 171,736 KB |
実行使用メモリ | 11,032 KB |
最終ジャッジ日時 | 2024-09-13 20:41:40 |
合計ジャッジ時間 | 2,678 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge2 |
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ファイルパターン | 結果 |
---|---|
other | AC * 1 |
ソースコード
#include<bits/stdc++.h>using namespace std;#define ll long long#define FOR(i,n,m) for(int i=(n);i<(m);i++)#define REP(i,n) FOR(i,0,n)#define REPR(i,n) for(int i=(n);i>=0;i--)#define all(vec) vec.begin(),vec.end()using vi=vector<int>;using vvi=vector<vi>;using vl=vector<ll>;using vvl=vector<vl>;using P=pair<int,int>;using PP=pair<int,P>;using Pl=pair<ll,ll>;using PPl=pair<ll,Pl>;using vs=vector<string>;#define fi first#define se second#define pb push_backtemplate<class T>bool chmax(T &a,const T &b){if(a<b){a=b;return true;}return false;}template<class T>bool chmin(T &a,const T &b){if(a>b){a=b;return true;}return false;}const ll MOD=1000000007LL;const int INF=1<<30;const ll LINF=1LL<<60;template<int mod>struct ModInt{int x;ModInt():x(0){}ModInt(long long y):x(y>=0?y%mod:(mod-(-y)%mod)%mod){}ModInt &operator+=(const ModInt &p){if((x+=p.x)>=mod)x-=mod;return *this;}ModInt &operator-=(const ModInt &p){if((x+=mod-p.x)>=mod)x-=mod;return *this;}ModInt &operator*=(const ModInt &p){x=(int)(1LL*x*p.x%mod);return *this;}ModInt &operator/=(const ModInt &p){*this*=p.inverse();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 inverse()const{int a=x,b=mod,u=1,v=0,t;while(b>0){t=a/b;a-=t*b;swap(a,b);u-=t*v;swap(u,v);}return ModInt(u);}friend ostream &operator<<(ostream &os,const ModInt<mod> &p){return os<<p.x;}friend istream &operator>>(istream &is,ModInt<mod> &a){long long x;is>>x;a=ModInt<mod>(x);return (is);}};template<int mod=1e9+7>struct Combination{using mint=ModInt<mod>;vector<mint> fact;Combination(int n){n++;fact.resize(n);for(int i=0;i<n;i++){if(!i){fact[i]=1;}else{fact[i]=fact[i-1]*i;}}}mint P(int n,int r){if(n<r){return 0;}return fact[n]/fact[n-r];}mint C(int n,int r){if(n<r){return 0;}return fact[n]/fact[r]/fact[n-r];}mint H(int n,int r){if(!n&&!r){return 1;}if(n+r-1<r){return 0;}return C(n+r-1,r);}};const int mod=1e9+7;using mint=ModInt<mod>;int main(){int Q;cin>>Q;Combination<mod> comb(2e6);REP(i,Q){char c;int x,y;scanf("\n%c(%d,%d)",&c,&x,&y);if(c=='C'){cout<<comb.C(x,y)<<endl;}else if(c=='P'){cout<<comb.P(x,y)<<endl;}else{cout<<comb.H(x,y)<<endl;}}return 0;}