結果
問題 | No.503 配列コレクション |
ユーザー | n_vip |
提出日時 | 2017-04-07 23:04:40 |
言語 | C++11 (gcc 11.4.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,997 bytes |
コンパイル時間 | 1,066 ms |
コンパイル使用メモリ | 108,768 KB |
実行使用メモリ | 10,752 KB |
最終ジャッジ日時 | 2024-07-16 02:53:56 |
合計ジャッジ時間 | 2,303 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | AC | 20 ms
10,624 KB |
testcase_01 | AC | 21 ms
10,752 KB |
testcase_02 | AC | 20 ms
10,624 KB |
testcase_03 | AC | 19 ms
10,752 KB |
testcase_04 | WA | - |
testcase_05 | AC | 19 ms
10,624 KB |
testcase_06 | AC | 21 ms
10,624 KB |
testcase_07 | AC | 21 ms
10,624 KB |
testcase_08 | AC | 20 ms
10,752 KB |
testcase_09 | AC | 20 ms
10,624 KB |
testcase_10 | AC | 21 ms
10,752 KB |
testcase_11 | AC | 21 ms
10,624 KB |
testcase_12 | AC | 20 ms
10,752 KB |
testcase_13 | AC | 19 ms
10,624 KB |
testcase_14 | AC | 20 ms
10,624 KB |
testcase_15 | AC | 21 ms
10,624 KB |
testcase_16 | AC | 20 ms
10,624 KB |
testcase_17 | AC | 21 ms
10,624 KB |
testcase_18 | AC | 20 ms
10,752 KB |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 20 ms
10,624 KB |
testcase_23 | AC | 20 ms
10,624 KB |
testcase_24 | WA | - |
ソースコード
#include <string> #include <vector> #include<iostream> #include<cstdio> #include<cstdlib> #include<stack> #include<queue> #include<cmath> #include<algorithm> #include<functional> #include<list> #include<deque> #include<bitset> #include<set> #include<map> #include<unordered_map> #include<unordered_set> #include<cstring> #include<sstream> #include<complex> #include<iomanip> #include<numeric> #include<cassert> #define X first #define Y second #define pb push_back #define rep(X,Y) for (int (X) = 0;(X) < (Y);++(X)) #define reps(X,S,Y) for (int (X) = S;(X) < (Y);++(X)) #define rrep(X,Y) for (int (X) = (Y)-1;(X) >=0;--(X)) #define repe(X,Y) for ((X) = 0;(X) < (Y);++(X)) #define peat(X,Y) for (;(X) < (Y);++(X)) #define all(X) (X).begin(),(X).end() #define rall(X) (X).rbegin(),(X).rend() #define eb emplace_back #define UNIQUE(X) (X).erase(unique(all(X)),(X).end()) #define Endl endl using namespace std; typedef long long ll; typedef pair<int,int> pii; typedef pair<ll,ll> pll; template<class T> using vv=vector<vector<T>>; template<class T> ostream& operator<<(ostream &os, const vector<T> &t) { os<<"{"; rep(i,t.size()) {os<<t[i]<<",";} os<<"}"<<endl; return os;} template<class S, class T> ostream& operator<<(ostream &os, const pair<S,T> &t) { return os<<"("<<t.first<<","<<t.second<<")";} template<class T> inline bool MX(T &l,const T &r){return l<r?l=r,1:0;} template<class T> inline bool MN(T &l,const T &r){return l>r?l=r,1:0;} #define out(args...){vector<string> a_r_g_s=s_p_l_i_t(#args, ','); e_r_r(a_r_g_s.begin(), args); } vector<string> s_p_l_i_t(const string& s, char c) { vector<string> v; stringstream ss(s); string x; while(getline(ss,x,c)) v.emplace_back(x); return move(v);} void e_r_r(vector<string>::iterator it) {} template<typename T, typename... Args> void e_r_r(vector<string>::iterator it, T a, Args... args){ if(*it==" 1"||*it=="1") cerr<<endl; else cerr << it -> substr((*it)[0] == ' ', it -> length()) << " = " << a << ", "; e_r_r(++it, args...);} const ll MOD=1e9+7; ll modpow(ll r,ll n,ll m=MOD){ ll re=1,d=r%m; if(n<0)(n%=m-1)+=m-1; for(;n;n/=2){ if(n&1)(re*=d)%=m; (d*=d)%=m; } return re; } template <int mod=MOD> struct modInt{ int v; modInt(int v=0):v(v){} modInt operator+(const modInt &n){return v+n.v<mod ? v+n.v : v+n.v-mod;} modInt operator-(const modInt &n){return v-n.v<0 ? v-n.v+mod : v-n.v;} modInt operator*(const modInt &n){return ll(v)*n.v%mod;} modInt operator/(const modInt &n){return ll(v)*modpow(n.v%mod,-1,mod)%mod;} template<class T> modInt operator+(const T &n){return v+n<mod ? v+n : v+n-mod;} template<class T> modInt operator-(const T &n){return v-n<0 ? v-n+mod : v-n;} template<class T> modInt operator*(const T &n){return ll(v)*(n%mod)%mod;} template<class T> modInt operator/(const T &n){return ll(v)*modpow(n%mod,-1,mod)%mod;} modInt& operator+=(const modInt &n){v+=n.v; if(v>=mod) v-=mod; return *this;} modInt& operator-=(const modInt &n){v-=n.v; if(v<0) v+=mod; return *this;} modInt& operator*=(const modInt &n){v=ll(v)*n.v%mod; return *this;} modInt& operator/=(const modInt &n){v=ll(v)*modpow(n.v,-1,mod)%mod; return *this;} template<class T> modInt& operator+=(const T &n){v+=n; if(v>=mod) v-=mod; return *this;} template<class T> modInt& operator-=(const T &n){v-=n; if(v<0) v+=mod; return *this;} template<class T> modInt& operator*=(const T &n){v=ll(v)*n%mod; return *this;} template<class T> modInt& operator/=(const T &n){v=ll(v)*modpow(n,-1,mod)%mod; return *this;} }; template<int mod> ostream& operator<<(ostream &os,const modInt<mod> &n){return os<<n.v;}; template<class T,int mod> modInt<mod> operator+(const T &n,const modInt<mod> &m){return m.v+n<mod ? m.v+n : m.v+n-mod;} template<class T,int mod> modInt<mod> operator-(const T &n,const modInt<mod> &m){return n-m.v<0 ? n-m.v+mod : n-m.v;} template<class T,int mod> modInt<mod> operator*(const T &n,const modInt<mod> &m){return ll(m.v)*(n%mod)%mod;} template<class T,int mod> modInt<mod> operator/(const T &n,const modInt<mod> &m){return ll(m.v)*modpow(n%mod,-1,mod)%mod;} typedef modInt<MOD> mint; template <int mod> modInt<mod> modpow(modInt<mod> r,ll n){ mint re(1); if(n<0)(n%=mod-1)+=mod-1; for(;n;n/=2){if(n&1) re*=r; r*=r;} return re;} vector<mint> fact,finv,inv; mint comb(ll n,ll r){ if(n<r||r<0)return 0; return fact[n]*finv[n-r]*finv[r];} class Doralion{ void Modinvs(vector<mint> &re,int n){ re.resize(n+1); re[1]=1; for(int i=2;i<=n;++i)re[i]=re[MOD%i]*(MOD-MOD/i);} void Facts(vector<mint> &re,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*(i+1);} void Factinvs(vector<mint> &re,const vector<mint> &inv,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*inv[i+1];} public: Doralion(int n){ Modinvs(inv,n); Facts(fact,n); Factinvs(finv,inv,n);} } doralion(212345); vector<ll> fact_,finv_,inv_; ll comb_(ll n,ll r){ if(n<r||r<0)return 0; return fact_[n]*finv_[n-r]%MOD*finv_[r]%MOD; } class Doralion_{ void Modinvs(vector<ll> &re,int n){ re.resize(n+1); re[1]=1; for(int i=2;i<=n;++i)re[i]=re[MOD%i]*(MOD-MOD/i)%MOD; } void Facts(vector<ll> &re,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*(i+1)%MOD; } void Factinvs(vector<ll> &re,const vector<ll> &inv_,int n){ re.resize(n+1); re[0]=1; rep(i,n)re[i+1]=re[i]*inv_[i+1]%MOD; } public: Doralion_(int n){ Modinvs(inv_,n); Facts(fact_,n); Factinvs(finv_,inv_,n); } } doralion_(212345); int main(){ ios_base::sync_with_stdio(false); cout<<fixed<<setprecision(0); int n,k,d; cin>>n>>k>>d; int t=(n-k)/(k-1)+1; int l=n-t*(k-1); if(d==1){ cout<<l<<endl; return 0; } mint p=1,re=0; out(t,l,1); rep(i,t+1){ re+=p*comb(l-2+t-i,t-i); //out(p,re,l-2+t-i,t-i,1); p*=d; } cout<<re*l<<endl; // vector<mint> dp(t+1); // dp[t]=1; // rep(i,l){ // vector<mint> nxt(t+1); // rrep(j,t+1){ // rep(k,j,t+1) nxt[j]+=dp[k] // } // cout<<nxt; // swap(dp,nxt); // } // cout<<dp[0]<<endl; return 0; }