Verify/LC_nim_product_64.test.cpp

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Last update: 2024-04-26 03:18:17+09:00
Problem: https://judge.yosupo.jp/problem/nim_product_64

Depends on

Code

#define PROBLEM "https://judge.yosupo.jp/problem/nim_product_64"

#include "Template/template.hpp"

#include "Math/nimber.hpp"


int main(){
    int t;
    cin>>t;
    while(t--){
        Nimber a,b;
        cin>>a>>b;
        cout<<a*b<<'\n';
    }
    return 0;
}

#line 1 "Verify/LC_nim_product_64.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/nim_product_64"

#line 1 "Template/template.hpp"
#include <bits/stdc++.h>

using namespace std;

#define rep(i, a, b) for (int i = (int)(a); i < (int)(b); i++)
#define rrep(i, a, b) for (int i = (int)(b-1); i >= (int)(a); i--)
#define ALL(v) (v).begin(), (v).end()
#define UNIQUE(v) sort(ALL(v)), (v).erase(unique(ALL(v)), (v).end())
#define SZ(v) (int)v.size()
#define MIN(v) *min_element(ALL(v))
#define MAX(v) *max_element(ALL(v))
#define LB(v, x) int(lower_bound(ALL(v), (x)) - (v).begin())
#define UB(v, x) int(upper_bound(ALL(v), (x)) - (v).begin())

using uint = unsigned int;
using ll = long long int;
using ull = unsigned long long;
using i128 = __int128_t;
using u128 = __uint128_t;
const int inf = 0x3fffffff;
const ll INF = 0x1fffffffffffffff;

template <typename T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <typename T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return 1;
    }
    return 0;
}
template <typename T, typename U> T ceil(T x, U y) {
    assert(y != 0);
    if (y < 0)
        x = -x, y = -y;
    return (x > 0 ? (x + y - 1) / y : x / y);
}
template <typename T, typename U> T floor(T x, U y) {
    assert(y != 0);
    if (y < 0)
        x = -x, y = -y;
    return (x > 0 ? x / y : (x - y + 1) / y);
}
template <typename T> int popcnt(T x) {
    return __builtin_popcountll(x);
}
template <typename T> int topbit(T x) {
    return (x == 0 ? -1 : 63 - __builtin_clzll(x));
}
template <typename T> int lowbit(T x) {
    return (x == 0 ? -1 : __builtin_ctzll(x));
}

#ifdef LOCAL
#define show(...) _show(0, #__VA_ARGS__, __VA_ARGS__)
#else
#define show(...) true
#endif
template <typename T> void _show(int i, T name) {
    cerr << '\n';
}
template <typename T1, typename T2, typename... T3>
void _show(int i, const T1 &a, const T2 &b, const T3 &...c) {
    for (; a[i] != ',' && a[i] != '\0'; i++)
        cerr << a[i];
    cerr << ":" << b << " ";
    _show(i + 1, a, c...);
}
template <class T, class U>
ostream &operator<<(ostream &os, const pair<T, U> &p) {
    os << "P(" << p.first << ", " << p.second << ")";
    return os;
}
template <typename T, template <class> class C>
ostream &operator<<(ostream &os, const C<T> &v) {
    os << "[";
    for (auto d : v)
        os << d << ", ";
    os << "]";
    return os;
}
#line 2 "Math/nimber.hpp"

using ull=unsigned long long;
struct NimberManager{
    ull memo[256][256];
    NimberManager(){
        rep(i,0,256)rep(j,0,256)memo[i][j]=256;
        memo[0][0]=memo[0][1]=memo[1][0]=0;
        memo[1][1]=1;
        rep(i,0,256)rep(j,0,256)memo[i][j]=mul(i,j,8);
    }
    ull mul(ull x,ull y,int k=64){
        if(k<=8&&memo[x][y]<256)return memo[x][y];
        k>>=1;
        ull a=x>>k,b=x^(a<<k),c=y>>k,d=y^(c<<k);
        ull ac=mul(a,c,k),bd=mul(b,d,k),abcd=mul(a^b,c^d,k);
        return mul(ac,1ull<<(k-1),k)^(abcd^bd)<<k^bd;
    }
};
NimberManager Nim;
struct Nimber{
    ull v;
    Nimber(ull _v=0):v(_v){}
    Nimber& operator+=(const Nimber& x){v^=x.v; return *this;}
    Nimber& operator-=(const Nimber& x){v^=x.v; return *this;}
    Nimber& operator*=(const Nimber& x){v=Nim.mul(v,x.v); return *this;}
    Nimber operator+(const Nimber& x)const{return Nimber(*this)+=x;}
    Nimber operator-(const Nimber& x)const{return Nimber(*this)-=x;}
    Nimber operator*(const Nimber& x)const{return Nimber(*this)*=x;}
    bool operator==(const Nimber& x)const{return v==x.v;}
    bool operator!=(const Nimber& x)const{return v!=x.v;}
    friend istream& operator>>(istream& is,Nimber& x){return is>>x.v;}
    friend ostream& operator<<(ostream& os,const Nimber& x){return os<<x.v;}
};

/**
 * @brief Nimber
 */
#line 5 "Verify/LC_nim_product_64.test.cpp"

int main(){
    int t;
    cin>>t;
    while(t--){
        Nimber a,b;
        cin>>a>>b;
        cout<<a*b<<'\n';
    }
    return 0;
}