結果
| 問題 |
No.1281 Cigarette Distribution
|
| コンテスト | |
| ユーザー |
mugen_1337
|
| 提出日時 | 2020-11-06 22:00:24 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 4,997 bytes |
| コンパイル時間 | 1,913 ms |
| コンパイル使用メモリ | 195,984 KB |
| 最終ジャッジ日時 | 2025-01-15 20:39:47 |
|
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 * 4 WA * 19 |
ソースコード
#include<bits/stdc++.h>
using namespace std;
#define ALL(x) begin(x),end(x)
#define rep(i,n) for(int i=0;i<(n);i++)
#define debug(v) cout<<#v<<":";for(auto x:v){cout<<x<<' ';}cout<<endl;
#define mod 1000000007
using ll=long long;
const int INF=1000000000;
const ll LINF=1001002003004005006ll;
int dx[]={1,0,-1,0},dy[]={0,1,0,-1};
// ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
template<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(b<a){a=b;return true;}return false;}
struct IOSetup{
IOSetup(){
cin.tie(0);
ios::sync_with_stdio(0);
cout<<fixed<<setprecision(12);
}
} iosetup;
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==(int)v.size()?"":" ");
return os;
}
template<typename T>
istream &operator>>(istream &is,vector<T>&v){
for(T &x:v)is>>x;
return is;
}
template<ll Mod>
struct ModInt{
long long 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;
swap(a-=t*b,b);swap(u-=t*v,v);
}
return ModInt(u);
}
ModInt pow(long long n)const{
ModInt ret(1),mul(x);
while(n>0){
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<Mod>(t);return (is);}
static int get_mod(){return Mod;}
};
using mint=ModInt<mod>;
template<typename Mint>
struct comcalc{
vector<Mint> fact,finv,inv;
int Mod;
comcalc(int sz):fact(sz),finv(sz),inv(sz),Mod(Mint::get_mod()){
fact[0]=Mint(1),fact[1]=Mint(1),finv[0]=Mint(1),finv[1]=Mint(1),inv[1]=Mint(1);
for(int i=2;i<sz;i++){
fact[i]=fact[i-1]*Mint(i);
inv[i]=Mint(0)-inv[Mod%i]*(Mint(Mod/i));
finv[i]=finv[i-1]*inv[i];
}
}
Mint com(int n,int k){
if(n<k) return Mint(0);
if(n<0 or k<0) return Mint(0);
return fact[n]*(finv[k]*finv[n-k]);
}
Mint fac(int n){
return fact[n];
}
// 重複組み合わせ:n種類の物から重複を許し,k個選ぶ
Mint nHk(int n,int k){
return com(n+k-1,k);
}
// 玉n区別,箱k区別,各箱1個以上O(k)
Mint F12_dis_dis_one(int n,int k){
if(n<k)return Mint(0);
Mint ret=0;
for(int i=0;i<=k;i++){
Mint add=com(k,i)*(Mint(i).pow(n));
if((k-i)%2) ret-=add;
else ret+=add;
}
return ret;
}
/* sum combination(n+x, x), x=l to r
https://www.wolframalpha.com/input/?i=sum+combination%28n%2Bx+%2Cx%29%2C+x%3Dl+to+r&lang=ja
check n+x < [COM_PRECALC_MAX] */
Mint sum_of_comb(int n,int l,int r){
if(l>r)return Mint(0);
Mint ret=Mint(r+1)*com(n+r+1,r+1)-Mint(l)*com(l+n,l);
ret/=Mint(n+1);
return ret;
}
};
mint pow_mod(mint x,ll n){
return x.pow(n);
}
mint inv_mod(mint x){
return x.inverse();
}
// O(n)
mint fact_mod(ll n){
mint ret=1;
for(int i=2;i<=n;i++) ret*=mint(i);
return ret;
}
// O(r)
mint comb_mod(ll n,ll r){
if(r>n-r) r=n-r;
if(r==0) return 1;
mint a=1,b=mint(fact_mod(r)).inverse();
for(int i=0;i<r;i++)a*=mint(n-i);
return a*b;
}
int MAX_SZ=2100000;
using cominit=comcalc<mint>;
// Bは常にminを取るのが最適
signed main(){
ll n,m;cin>>n>>m;
for(ll x=1;x<=m;x++){
if(n<2*x-1){
cout<<0<<endl;
continue;
}
mint res=1;
ll a=(n+1)%x;
ll u=(n+1)/x+1;
ll b=x-a;
ll v=(n+1)/x;
ll c=0;
ll w=(n+1)/x-1;
if(b){
b--;
c++;
}else{
a--;
b++;
}
if(a) res*=a*u;
if(b) res*=b*v;
if(c) res*=c*w;
cout<<res<<endl;
}
return 0;
}
mugen_1337