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| #include <algorithm> #include <bits/stdc++.h> #include <cmath> #include <vector> #define all(vec) vec.begin(),vec.end() #define pb push_back #define EB emplace_back #define EM emplace #define FI first #define SE second #define pct __builtin_popcountll #define ctz __builtin_ctzll #define SZ(a) ((long long) a.size()) #define FOR(i, a, b) for (long long i = (a); i <= (b); ++i) #define ROF(i, a, b) for (long long i = (a); i >= (b); --i) #define debug(var) cerr << #var <<":"<<var<<"\n"; #define cend cerr<<"\n-----------\n" #define lson(var) (var<<1) #define rson(var) (var<<1|1) #define fsp(x) fixed<<setprecision(x) using namespace std; #ifdef LOCAL template<typename T> void _print(T x) { cerr << x; } template<typename T> void _print(vector<T> v) { cerr << "[ "; for (T i : v) _print(i), cerr << " "; cerr << "]"; } template<typename T> void _print(set<T> s) { cerr << "{ "; for (T i : s) _print(i), cerr << " "; cerr << "}"; } template<typename T, typename U> void _print(pair<T, U> p) { cerr << "{"; _print(p.first); cerr << ", "; _print(p.second); cerr << "}"; } template<typename T, typename U> void _print(map<T, U> m) { cerr << "{ "; for (auto &p : m) _print(p), cerr << " "; cerr << "}"; } #endif
using ll = long long;using ull = unsigned long long; using DB=double;using LD=long double; using i128 = __int128; using pdd = pair<DB,DB>;using plb = pair<ll,bool>; using pll = pair<ll,ll>;using vll=vector<ll>;using vb=vector<bool>; using tll = tuple<ll,ll,ll>;using vii=vector<int>; using vpll = vector<pll>;using vtll = vector<tll>; using vdb = vector<DB>;using vc=vector<char>; using arr3 = array<ll,3> ;using arr2 = array<ll,2>; using cd=complex<double>; static constexpr ll MAXN=(ll)1e6+10,INF=(ll)1e17+3; static constexpr ll mod=(ll)1e9+7; static constexpr double eps=1e-8;const double pi=acos(-1.0);
ll N,M,Q,X,K,T,lT;
inline void __(); signed main() { ios::sync_with_stdio(false); cin.tie(0);cout.tie(0); __(); return 0; }
using cd=complex<double>; void fft(vector<cd> &a,bool invert){ ll n=SZ(a); if(n==1) return; vector<cd> a0(n/2),a1(n/2); FOR(i,0,n/2-1){ a0[i]=a[2*i]; a1[i]=a[2*i+1]; } fft(a0,invert),fft(a1,invert); double ang=2*pi/n*(invert?-1:1); cd w(1),wlen={cos(ang),sin(ang)}; FOR(i,0,n/2-1){ a[i]=a0[i]+w*a1[i]; a[i+n/2]=a0[i]-w*a1[i]; if(invert){ a[i]/=2; a[i+n/2]/=2; } w*=wlen; } } vll multiply(vll &a,vll &b){ vector<cd> fa(all(a)),fb(all(b)); ll n=1; while(n<SZ(a)+SZ(b)){ n<<=1; } fa.resize(n);fb.resize(n); fft(fa,false);fft(fb,false); FOR(i,0,n-1) fa[i]*=fb[i]; fft(fa,true); vll res(n); FOR(i,0,n-1) res[i]=llround(fa[i].real()); return res; } inline void __(){ cin>>N>>M; vll A(N+1),B(M+1); FOR(i,0,N) cin>>A[i]; FOR(i,0,M) cin>>B[i]; vll ans=multiply(A, B); if(ans.empty()) cout<<0; FOR(i,0,N+M) cout<<ans[i]<<" "; cout<<"\n"; }
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