結果
問題 | No.117 組み合わせの数 |
ユーザー | NyaanNyaan |
提出日時 | 2019-08-01 20:51:26 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 151 ms / 5,000 ms |
コード長 | 6,109 bytes |
コンパイル時間 | 1,442 ms |
コンパイル使用メモリ | 119,004 KB |
実行使用メモリ | 50,304 KB |
最終ジャッジ日時 | 2024-07-05 07:55:01 |
合計ジャッジ時間 | 2,110 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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ソースコード
#pragma GCC optimize("O2") #include <algorithm> #include <bitset> #include <cassert> #include <cmath> #include <cstdarg> #include <cstdio> #include <cstring> #include <ctime> #include <deque> #include <functional> #include <iomanip> #include <iostream> #include <iterator> #include <map> #include <numeric> #include <queue> #include <random> #include <set> #include <stack> #include <string> #include <utility> #include <vector> #define whlie while #define retunr return #define reutrn return #define reutnr return #define mp make_pair #define pb push_back #define eb emplace_back #define fi first #define se second #define inf 1001001001 #define infLL (1LL << 61) #define FOR(i,a,b) for(int (i)=(int)(a); (i)<(int)(b); (i)++) // [a,b) #define rep(i,N) FOR((i), 0, (int)(N)) // [0,N) #define FORR(i,a,b) for(int (i)=(int)(b) - 1; (i)>=(int)(a); (i)--) #define repr(i,N) FORR((i), 0, (int)(N)) #define each(x,v) for(auto &x : v) #define all(v) (v).begin(),(v).end() #define sz(v) ((int)(v).size()) #define vrep(v,it) for(auto it=v.begin();it!=v.end();it++) #define vrepr(v,it) for(auto it=v.rbegin();it!=v.rend();it++) #define ini(...) int __VA_ARGS__; in(__VA_ARGS__) #define inl(...) ll __VA_ARGS__; in(__VA_ARGS__) #define inc(...) char __VA_ARGS__; in(__VA_ARGS__) #define ins(...) string __VA_ARGS__; in(__VA_ARGS__) #define ind(...) double __VA_ARGS__; in(__VA_ARGS__) #define inpii(...) pii __VA_ARGS__; in(__VA_ARGS__) #ifdef LOCAL #define trc(...) do { cout << #__VA_ARGS__ << " = "; dbg_out(__VA_ARGS__);} while(0) #define stopif(val) assert( !(val) ) #define trcv(v,...) do { cout << #v << " = "; vector_debug(v , ##__VA_ARGS__);cout << endl;} while(0) #else #define trc(...) #define stopif(...) #define trcv(...) #endif using namespace std; using ll = long long; using pii = pair<int,int>; using pll = pair<ll,ll>; using vi = vector<int>; using vl = vector<ll>; using vs = vector<string>; using vpii = vector<pii>; using vvi = vector< vector<int> >; struct IoSetupNya {IoSetupNya() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); cerr << fixed << setprecision(15);} } iosetupnya; /* int gcd(int a, int b){if(a>b) swap(a,b); return a==0 ? b : gcd(b%a,a);} ll gcd(ll a, ll b){if(a>b) swap(a,b); return a==0 ? b : gcd(b%a,a);} ll lcm(int a, int b){return (1LL * a / gcd(a,b)) * b;} ll lcm(ll a, ll b){return (a / gcd(a,b)) * b;} */ inline ll pow(int a, int b){ll ans = 1; rep(i,b) ans *= a; return ans;} inline ll pow(ll a, ll b){ll ans = 1; rep(i,b) ans*= a; return ans;} inline ll pow(int a, ll b){ll ans = 1; rep(i,b) ans *= a; return ans;} inline ll pow(ll a, int b){ll ans = 1; rep(i,b) ans*= a; return ans;} template<typename T, typename U> inline bool amin(T &x, U y) { return (y < x) ? (x = y, true) : false; } template<typename T, typename U> inline bool amax(T &x, U y) { return (x < y) ? (x = y, true) : false; } template<typename C> inline void _cin(C &c){cin >> c;} template<typename T,typename U> inline void _cin(pair<T,U> &p){cin >> p.fi; cin >> p.se;} template<typename C> inline void _cout(const C &c){cout << c;} template<typename T,typename U> inline void _cout(const pair<T,U> &p){cout << p.fi << ' ' << p.se;} void in(){} template <typename T,class... U> void in(T &t,U &...u){ _cin(t); in(u...);} void out(){cout << "\n";} template <typename T,class... U> void out(const T &t,U ...u){ _cout(t); if(sizeof...(u)) cout << ' '; out(u...);} template<typename C> inline void in(vector<C> &v,int N=-1){if(sz(v) != 0){int M=(N == -1) ? sz(v) : N; rep(i,M) _cin(v[i]);}else{C c;rep(i,N) v.pb((_cin(c),c));}} template<typename C> inline void in(C v[],int N){rep(i,N) _cin(v[i]);} template<typename C> inline void out(const vector<C> &v,int N=-1){int M=(N == -1) ? sz(v) : N; rep(i,M) {cout<<( (i)?" ":"" ); _cout(v[i]);} cout<<"\n";} template<typename C> inline void out(C v[],int N){rep(i,N) {cout<<( (i)?" ":"" ); _cout(v[i]);} cout<<"\n";} template<typename C> inline void vector_debug(const vector<C> &v,int N=-1){cout << "{"; int M=(N == -1) ? sz(v) : N; rep(i,M) {cout<<( (i)?", ":"" ); _cout(v[i]);} cout<<"}";} template<typename C> inline void vector_debug(C v[], int N){cout << "{"; rep(i,N) {cout<<((i)?", ":""); _cout(*(v+i));} cout<<"}";} void dbg_out(){cout << endl;} template <typename T,class... U> void dbg_out(const T &t,U ...u){ _cout(t); if(sizeof...(u)) cout << ", "; dbg_out(u...);} template<typename C,class... U> void dbg_out(const vector<C> &v,U ...u){vector_debug(v); if(sizeof...(u)) cout << ", "; dbg_out(u...);} template<typename C,class... U> void dbg_out(const vector<vector<C>> &v,U ...u){cout << "{ "; rep(i,sz(v)) {if(i)cout<<", "; vector_debug(v[i]);} cout << " }"; if(sizeof...(u)) cout << ", "; dbg_out(u...);} template<typename C> inline C vmax(const vector<C> &v){C n=v[0]; rep(i,sz(v)) amax(n,v[i]); return n;} template<typename C> inline C vmax(C v[], int N){C n=v[0]; rep( i , N ) amax(n,v[i]); return n;} template<typename C> inline C vmin(const vector<C> &v){C n=v[0]; rep(i,sz(v)) amin(n,v[i]); return n;} template<typename C> inline C vmin(C v[], int N){C n=v[0]; rep( i , N ) amin(n,v[i]); return n;} void die(string s){out(s); exit(0);} #define MOD 1000000007 #define rand mtrand #define randinit random_device seed_gen; mt19937_64 mtrand(seed_gen()) //////////// /// main /// //////////// vector<ll> fac,finv,inv; void COMinit(int MAX) { fac.resize(MAX , 0); finv.resize(MAX , 0); inv.resize(MAX , 0); fac[0] = fac[1] = finv[0] = finv[1] = inv[1] = 1; for (int i = 2; i < MAX; i++){ fac[i] = fac[i - 1] * i % MOD; inv[i] = MOD - inv[MOD%i] * (MOD / i) % MOD; finv[i] = finv[i - 1] * inv[i] % MOD; } } long long COM(int n,int k){ if(n < k || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % MOD) % MOD; } int main(){ COMinit(2001001); int Q; scanf("%d\n" , &Q); while(Q--){ int N,K; char c = '!'; scanf("%c(%d,%d)\n",&c,&N,&K); trc(c,N,K); if(c == 'C') out(COM(N , K)); if(c == 'P') out(N >= K ? (fac[N] * finv[N - K]) % MOD : 0); if(c == 'H') out((N == 0 && K == 0) ? 1 : COM(N + K - 1 , K)); } }