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:heavy_check_mark: verify/yosupo/polynomial/exp_of_formal_power_series.test.cpp

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Code

#define PROBLEM "https://judge.yosupo.jp/problem/exp_of_formal_power_series"
#include "template.hpp"
#include "modular-arithmetic/modint.hpp"
#include "polynomial/formal-power-series.hpp"


using mint = mint998;
using FPS = FormalPowerSeries<mint>;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n;
    cin >> n;
    FPS a(n);
    for(auto &x:a)cin >> x;
    a=a.exp();
    for(auto x:a)cout << x << " ";
    cout << "\n";
}
#line 1 "verify/yosupo/polynomial/exp_of_formal_power_series.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/exp_of_formal_power_series"
#line 2 "template.hpp"
#include<bits/stdc++.h>

using namespace std;

#define pb push_back
#define eb emplace_back
#define mp make_pair
#define mt make_tuple
#define fi first
#define se second

#define ALL(a) a.begin(),a.end()
#define RALL(a) a.rbegin(),a.rend()
#define SORT(a) sort(ALL(a))
#define RSORT(a) sort(RALL(a))
#define REV(a) reverse(ALL(a))
#define UNI(a) a.erase(unique(ALL(a)),a.end())
#define SZ(a) (int)(a.size())
#define LB(a,x) (int)(lower_bound(ALL(a),x)-a.begin())
#define UB(a,x) (int)(upper_bound(ALL(a),x)-a.begin())
#define MIN(a) *min_element(ALL(a))
#define MAX(a) *max_element(ALL(a))

using ll = long long;
using db = long double;
using i128 = __int128_t;
using u32 = uint32_t;
using u64 = uint64_t;

const int INF=INT_MAX/2;
const ll LINF=LLONG_MAX/4;
const db DINF=numeric_limits<db>::infinity();
const int MOD=998244353;
const int MOD2=1000000007;
const db EPS=1e-9;
const db PI=acos(db(-1));

template<class T>
using PQ = priority_queue<T,vector<T>,greater<T>>;

#define vv(T,a,n,...) vector<vector<T>> a(n,vector<T>(__VA_ARGS__))
#define vvv(T,a,n,m,...) vector<vector<vector<T>>> a(n,vector<vector<T>>(m,vector<T>(__VA_ARGS__)))
#define vvvv(T,a,n,m,k,...) vector<vector<vector<vector<T>>>> a(n,vector<vector<vector<T>>>(m,vector<vector<T>>(k,vector<T>(__VA_ARGS__))))

template<class T,class U>
bool chmin(T &a,U b){return b<a?a=b,1:0;}
template<class T,class U>
bool chmax(T &a,U b){return a<b?a=b,1:0;}
template<class T,class U>
T SUM(const U &a){return accumulate(ALL(a),T{});}

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
mt19937_64 rng64(chrono::steady_clock::now().time_since_epoch().count());
#line 2 "modular-arithmetic/modint.hpp"

/**
 * Author: Teetat T.
 * Date: 2026-04-15
 * Description: modular arithmetic operations
 */

template<int mod,int root=0>
struct ModInt{
    using mint = ModInt;
    
	static_assert(mod>0,"mod must be positive");

    int x;

    constexpr ModInt():x(0){}
    constexpr ModInt(ll x):x((x%=mod)<0?x+mod:x){}
    constexpr explicit operator int()const{return x;}
    constexpr static int get_mod(){return mod;}
    constexpr static mint get_root(){return mint(root);}
    
    constexpr mint operator-()const{
        mint res;
        res.x=x?mod-x:0;
        return res;
    }
    constexpr mint operator+()const{return *this;}

    constexpr mint inv()const{
        int a=x,b=mod,u=1,v=0,q=0;
        while(b>0){
            q=a/b;
            swap(a-=q*b,b);
            swap(u-=q*v,v);
        }
        return mint(u);
    }
    constexpr mint pow(ll n)const{
        mint res=1,a=*this;
        for(;n>0;a*=a,n>>=1)if(n&1)res*=a;
        return res;
    }
    constexpr mint &operator+=(const mint &o){
        if((x+=o.x)>=mod)x-=mod;
        return *this;
    }
    constexpr mint &operator-=(const mint &o){
        if((x-=o.x)<0)x+=mod;
        return *this;
    }
    constexpr mint &operator*=(const mint &o){
        x=(ll(x)*o.x)%mod;
        return *this;
    }
    constexpr mint &operator/=(const mint &o){
        return *this*=o.inv();
    }

    constexpr mint operator+(const mint &o)const{return mint(*this)+=o;}
    constexpr mint operator-(const mint &o)const{return mint(*this)-=o;}
    constexpr mint operator*(const mint &o)const{return mint(*this)*=o;}
    constexpr mint operator/(const mint &o)const{return mint(*this)/=o;}

    constexpr mint &operator++(){return *this+=mint(1);}
    constexpr mint &operator--(){return *this-=mint(1);}
    constexpr mint operator++(int){mint res=*this;*this+=mint(1);return res;}
    constexpr mint operator--(int){mint res=*this;*this-=mint(1);return res;}
    
    constexpr bool operator==(const mint &o)const{return x==o.x;}
    constexpr bool operator!=(const mint &o)const{return x!=o.x;}
    constexpr bool operator<(const mint &o)const{return x<o.x;}
    
    friend istream &operator>>(istream &is,mint &o){ll x{};is>>x;o=mint(x);return is;}
    friend ostream &operator<<(ostream &os,const mint &o){return os<<o.x;}
};
using mint998 = ModInt<998244353,3>;
using mint107 = ModInt<1000000007>;
#line 2 "modular-arithmetic/binpow.hpp"

/**
 * Author: Teetat T.
 * Date: 2024-01-15
 * Description: n-th power using divide and conquer
 * Time: $O(\log b)$
 */

template<class T>
constexpr T binpow(T a,ll b){
    T res=1;
    for(;b>0;b>>=1,a*=a)if(b&1)res*=a;
    return res;
}

#line 3 "polynomial/ntt.hpp"

/**
 * Author: Teetat T.
 * Description: Number Theoretic Transform
 * Time: $O(N \log N)$
 */

template<class mint>
struct NTT{
	using vm = vector<mint>;
	
	static constexpr mint root=mint::get_root();
    static_assert(root!=0, "root must be nonzero");

	static void ntt(vm &a){
		int n=a.size(),L=31-__builtin_clz(n);
		vm rt(n);
		rt[1]=1;
		for(int k=2,s=2;k<n;k*=2,s++){
			mint z[]={1,binpow(root,MOD>>s)};
			for(int i=k;i<2*k;i++)rt[i]=rt[i/2]*z[i&1];
		}
		vector<int> rev(n);
		for(int i=1;i<n;i++)rev[i]=(rev[i/2]|(i&1)<<L)/2;
		for(int i=1;i<n;i++)if(i<rev[i])swap(a[i],a[rev[i]]);
		for(int k=1;k<n;k*=2)for(int i=0;i<n;i+=2*k)for(int j=0;j<k;j++){
			mint z=rt[j+k]*a[i+j+k];
			a[i+j+k]=a[i+j]-z;
			a[i+j]+=z;
		}
	}
	static vm conv(const vm &a,const vm &b){
		if(a.empty()||b.empty())return {};
		int s=a.size()+b.size()-1,n=1<<(32-__builtin_clz(s));
		mint inv=mint(n).inv();
		vm in1(a),in2(b),out(n);
		in1.resize(n),in2.resize(n);
		ntt(in1),ntt(in2);
		for(int i=0;i<n;i++)out[-i&(n-1)]=in1[i]*in2[i]*inv;
		ntt(out);
		return vm(out.begin(),out.begin()+s);
	}
	vm operator()(const vm &a,const vm &b){
		return conv(a,b);
	}
};

#line 3 "polynomial/formal-power-series.hpp"

/**
 * Author: Teetat T.
 * Date: 2024-03-17
 * Description: basic operations of formal power series
 */

template<class mint>
struct FormalPowerSeries:vector<mint>{
    using vector<mint>::vector;
    using FPS = FormalPowerSeries;

    FPS &operator+=(const FPS &rhs){
        if(rhs.size()>this->size())this->resize(rhs.size());
        for(int i=0;i<rhs.size();i++)(*this)[i]+=rhs[i];
        return *this;
    }
    FPS &operator+=(const mint &rhs){
        if(this->empty())this->resize(1);
        (*this)[0]+=rhs;
        return *this;
    }
    FPS &operator-=(const FPS &rhs){
        if(rhs.size()>this->size())this->resize(rhs.size());
        for(int i=0;i<rhs.size();i++)(*this)[i]-=rhs[i];
        return *this;
    }
    FPS &operator-=(const mint &rhs){
        if(this->empty())this->resize(1);
        (*this)[0]-=rhs;
        return *this;
    }
    FPS &operator*=(const FPS &rhs){
        auto res=NTT<mint>()(*this,rhs);
        return *this=FPS(res.begin(),res.end());
    }
    FPS &operator*=(const mint &rhs){
        for(auto &a:*this)a*=rhs;
        return *this;
    }
    friend FPS operator+(FPS lhs,const FPS &rhs){return lhs+=rhs;}
    friend FPS operator+(FPS lhs,const mint &rhs){return lhs+=rhs;}
    friend FPS operator+(const mint &lhs,FPS &rhs){return rhs+=lhs;}
    friend FPS operator-(FPS lhs,const FPS &rhs){return lhs-=rhs;}
    friend FPS operator-(FPS lhs,const mint &rhs){return lhs-=rhs;}
    friend FPS operator-(const mint &lhs,FPS rhs){return -(rhs-lhs);}
    friend FPS operator*(FPS lhs,const FPS &rhs){return lhs*=rhs;}
    friend FPS operator*(FPS lhs,const mint &rhs){return lhs*=rhs;}
    friend FPS operator*(const mint &lhs,FPS rhs){return rhs*=lhs;}
    
    FPS operator-(){return (*this)*-1;}

    FPS rev(){
        FPS res(*this);
        reverse(res.beign(),res.end());
        return res;
    }
    FPS pre(int sz){
        FPS res(this->begin(),this->begin()+min((int)this->size(),sz));
        if(res.size()<sz)res.resize(sz);
        return res;
    }
    FPS shrink(){
        FPS res(*this);
        while(!res.empty()&&res.back()==mint{})res.pop_back();
        return res;
    }
    FPS operator>>(int sz){
        if(this->size()<=sz)return {};
        FPS res(*this);
        res.erase(res.begin(),res.begin()+sz);
        return res;
    }
    FPS operator<<(int sz){
        FPS res(*this);
        res.insert(res.begin(),sz,mint{});
        return res;
    }
    FPS diff(){
        const int n=this->size();
        FPS res(max(0,n-1));
        for(int i=1;i<n;i++)res[i-1]=(*this)[i]*mint(i);
        return res;
    }
    FPS integral(){
        const int n=this->size();
        FPS res(n+1);
        res[0]=0;
        if(n>0)res[1]=1;
        ll mod=mint::get_mod();
        for(int i=2;i<=n;i++)res[i]=(-res[mod%i])*(mod/i);
        for(int i=0;i<n;i++)res[i+1]*=(*this)[i];
        return res;
    }
    mint eval(const mint &x){
        mint res=0,w=1;
        for(auto &a:*this)res+=a*w,w*=x;
        return res;
    }

    FPS inv(int deg=-1){
        assert(!this->empty()&&(*this)[0]!=mint(0));
        if(deg==-1)deg=this->size();
        FPS res{mint(1)/(*this)[0]};
        for(int i=2;i>>1<deg;i<<=1){
            res=(res*(mint(2)-res*pre(i))).pre(i);
        }
        return res.pre(deg);
    }
    FPS log(int deg=-1){
        assert(!this->empty()&&(*this)[0]==mint(1));
        if(deg==-1)deg=this->size();
        return (pre(deg).diff()*inv(deg)).pre(deg-1).integral();
    }
    FPS exp(int deg=-1){
        assert(this->empty()||(*this)[0]==mint(0));
        if(deg==-1)deg=this->size();
        FPS res{mint(1)};
        for(int i=2;i>>1<deg;i<<=1){
            res=(res*(pre(i)-res.log(i)+mint(1))).pre(i);
        }
        return res.pre(deg);
    }
    FPS pow(ll k,int deg=-1){
        const int n=this->size();
        if(deg==-1)deg=n;
        if(k==0){
            FPS res(deg);
            if(deg)res[0]=mint(1);
            return res;
        }
        for(int i=0;i<n;i++){
            if(__int128_t(i)*k>=deg)return FPS(deg,mint(0));
            if((*this)[i]==mint(0))continue;
            mint rev=mint(1)/(*this)[i];
            FPS res=(((*this*rev)>>i).log(deg)*k).exp(deg);
            res=((res*binpow((*this)[i],k))<<(i*k)).pre(deg);
            return res;
        }
        return FPS(deg,mint(0));
    }
};
#line 5 "verify/yosupo/polynomial/exp_of_formal_power_series.test.cpp"


using mint = mint998;
using FPS = FormalPowerSeries<mint>;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n;
    cin >> n;
    FPS a(n);
    for(auto &x:a)cin >> x;
    a=a.exp();
    for(auto x:a)cout << x << " ";
    cout << "\n";
}
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