Algorithm-Library

This documentation is automatically generated by online-judge-tools/verification-helper

View the Project on GitHub UScuber/Algorithm-Library

:heavy_check_mark: test/yosupo/Data-Structure/Queue-Operate-All-Composite.test.cpp

Depends on

Code

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

#include "../../../template/template.hpp"

#include "../../../data-structure/SWAG.hpp"
#include "../../../math/mint.hpp"
#include "../../../others/fastIO.hpp"

using mint = Mint<998244353>;

//Data: ax+b
struct Data {
  mint a,b;
};
//合成関数 g(f(x))
Data op(const Data &l, const Data &m){
  return { l.a*m.a, l.b*m.a + m.b };
}
const Data e(){
  return { 1, 0 };
}
int main(){
  int q;
  cin >> q;
  SWAG<Data, op, e> sw;
  rep(i, q){
    int t; cin >> t;
    if(t == 0){
      int a,b;
      cin >> a >> b;
      sw.push_back({ a, b });
    }else if(t == 1){
      sw.pop();
    }else{
      int x; cin >> x;
      const Data l = sw.fold(0, sw.size());
      cout << (l.a*x + l.b).x << '\n';
    }
  }
}
#line 1 "test/yosupo/Data-Structure/Queue-Operate-All-Composite.test.cpp"
#define PROBLEM "https://judge.yosupo.jp/problem/queue_operate_all_composite"

#line 1 "template/template.hpp"
#include <iostream>
#include <cmath>
#include <string>
#include <vector>
#include <algorithm>
#include <tuple>
#include <cstdint>
#include <cstdio>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <deque>
#include <bitset>
#include <cctype>
#include <climits>
#include <functional>
#include <cassert>
#include <numeric>
#include <cstring>
#define rep(i, n) for(int i = 0; i < (n); i++)
#define per(i, n) for(int i = (n) - 1; i >= 0; i--)
using ll = long long;
#define vi vector<int>
#define vvi vector<vi>
#define vl vector<ll>
#define pii pair<int, int>
#define pll pair<ll, ll>
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
constexpr int mod = 1000000007;
using namespace std;
template<class T, class U>
bool chmax(T &a, const U &b){ return a < b ? (a = b, 1) : 0; }
template<class T, class U>
bool chmin(T &a, const U &b){ return a > b ? (a = b, 1) : 0; }
#line 4 "test/yosupo/Data-Structure/Queue-Operate-All-Composite.test.cpp"

#line 1 "data-structure/SWAG.hpp"
template <class T, T(*op)(const T&,const T&), const T(*e)()>
struct SWAG : deque<T> {
  private:
  T front = e();
  stack<T> back;
  int l = 0, r = 0;
  public:
  SWAG(const int n = 0) : deque<T>(n, e()){}
  SWAG(const deque<T> &v) : deque<T>(v){}
  T fold(const int i, const int j){
    assert(l <= i && i <= j);
    assert(r <= j && j <= (int)(*this).size());
    while(r < j) front = op(front, (*this)[r++]);
    while(l < i){
      if(back.empty()){
        T temp = e();
        for(int u = r - 1; u >= l; u--) back.push(temp = op((*this)[u], temp));
        front = e();
      }
      back.pop();
      l++;
    }
    if(back.empty()) return front;
    return op(back.top(), front);
  }
  void pop(){
    if(!l) fold(l + 1, max(l + 1, r));
    l--; r--;
    (*this).pop_front();
  }
};
#line 2 "math/mint.hpp"

template <int mod>
struct Mint {
  ll x;
  constexpr Mint(ll x = 0) : x((x + mod) % mod){}
  static constexpr int get_mod(){ return mod; }
  constexpr Mint operator-() const{ return Mint(-x); }
  constexpr Mint operator+=(const Mint &a){
    if((x += a.x) >= mod) x -= mod;
    return *this;
  }
  constexpr Mint &operator++(){
    if(++x == mod) x = 0;
    return *this;
  }
  constexpr Mint operator++(int){
    Mint temp = *this;
    if(++x == mod) x = 0;
    return temp;
  }
  constexpr Mint &operator-=(const Mint &a){
    if((x -= a.x) < 0) x += mod;
    return *this;
  }
  constexpr Mint &operator--(){
    if(--x < 0) x += mod;
    return *this;
  }
  constexpr Mint operator--(int){
    Mint temp = *this;
    if(--x < 0) x += mod;
    return temp;
  }
  constexpr Mint &operator*=(const Mint &a){
    (x *= a.x) %= mod;
    return *this;
  }
  constexpr Mint operator+(const Mint &a) const{ return Mint(*this) += a; }
  constexpr Mint operator-(const Mint &a) const{ return Mint(*this) -= a; }
  constexpr Mint operator*(const Mint &a) const{ return Mint(*this) *= a; }
  constexpr Mint pow(ll t) const{
    if(!t) return 1;
    Mint res = 1, v = *this;
    while(t){
      if(t & 1) res *= v;
      v *= v;
      t >>= 1;
    }
    return res;
  }
  constexpr Mint inv() const{ return pow(mod - 2); }
  constexpr Mint &operator/=(const Mint &a){ return (*this) *= a.inv(); }
  constexpr Mint operator/(const Mint &a) const{ return Mint(*this) /= a; }
  constexpr bool operator==(const Mint &a) const{ return x == a.x; }
  constexpr bool operator!=(const Mint &a) const{ return x != a.x; }
  constexpr bool operator<(const Mint &a) const{ return x < a.x; }
  constexpr bool operator>(const Mint &a) const{ return x > a.x; }
  friend istream &operator>>(istream &is, Mint &a){ return is >> a.x; }
  friend ostream &operator<<(ostream &os, const Mint &a){ return os << a.x; }
};
//using mint = Mint<1000000007>;
#line 1 "others/fastIO.hpp"
namespace FastIO {
struct PreCalc {
  char num[10000 * 4];
  constexpr PreCalc() : num(){
    for(int i = 0; i < 10000; i++){
      int t = i;
      for(int j = 3; j >= 0; j--){
        num[i*4 + j] = (t % 10) + '0';
        t /= 10;
      }
    }
  }
};
static constexpr PreCalc pr;
struct FastIO {
  template <class T>
  using enable_if_integer = enable_if_t<is_integral<T>::value || is_same<T, __int128_t>::value || is_same<T, __uint128_t>::value>;
  static constexpr int buf_size = 1 << 20;
  static constexpr int rem = 1 << 6;
  char in_buf[buf_size], *in_cur = in_buf + buf_size;
  char out_buf[buf_size], *out_cur = out_buf;
  FastIO(){ load(); }
  ~FastIO(){ flush(); }
  void load(){
    const int len = in_buf + buf_size - in_cur;
    memmove(in_buf, in_cur, len);
    in_cur = in_buf;
    fread(in_buf + len, 1, buf_size - len, stdin);
  }
  void flush(){
    fwrite(out_buf, 1, out_cur - out_buf, stdout);
    out_cur = out_buf;
  }
  void through(){
    if(in_cur - in_buf >= buf_size - rem) load();
    while(*in_cur <= ' ') in_cur++;
    assert(in_buf <= in_cur && in_cur < in_buf + buf_size);
  }
  #define gc() (*in_cur++)
  template <class T, enable_if_integer<T>* = nullptr>
  inline void read(T &x){
    through();
    bool neg = false;
    int c = gc();
    if(c == '-') neg = true, c = gc();
    x = c^'0'; c = gc();
    while(c >= '0' && c <= '9') x = x*10 + (c^'0'), c = gc();
    if(neg) x = -x;
  }
  inline void read(string &x){
    through();
    x.clear();
    while(true){
      char *p = in_cur;
      while(*p > ' ' && p - in_buf < buf_size - rem) p++;
      copy(in_cur, p, back_inserter(x));
      in_cur = p;
      if(*p <= ' ') break;
      load();
    }
  }
  inline void read(char &x){
    through();
    x = gc();
  }
  #undef gc
  #define pc(c) *out_cur++ = (c)
  template <class T, enable_if_integer<T>* = nullptr>
  inline void out(T x){
    static constexpr int tmp_size = sizeof(T)*5/2;
    static char tmp[tmp_size];
    if(out_cur - out_buf >= buf_size - rem) flush();
    if(!x){ pc('0'); return; }
    if(x < 0){ pc('-'); x = -x; }
    int idx = tmp_size;
    while(x >= 10000){
      idx -= 4;
      memcpy(tmp + idx, pr.num + (x % 10000)*4, 4);
      x /= 10000;
    }
    if(x < 100){
      if(x < 10){
        pc(x + '0');
      }else{
        pc(x/10 + '0');
        pc(x%10 + '0');
      }
    }else{
      if(x < 1000){
        memcpy(out_cur, pr.num + x*4 + 1, 3);
        out_cur += 3;
      }else{
        memcpy(out_cur, pr.num + x*4, 4);
        out_cur += 4;
      }
    }
    memcpy(out_cur, tmp + idx, tmp_size - idx);
    out_cur += tmp_size - idx;
  }
  inline void out(const string &s){
    flush();
    fwrite(s.c_str(), 1, s.size(), stdout);
  }
  inline void out(const char c){
    if(out_cur - out_buf >= buf_size - rem) flush();
    pc(c);
  }
  #undef pc
  template <class T>
  friend FastIO &operator>>(FastIO &io, T &x){
    io.read(x);
    return io;
  }
  template <class T>
  friend FastIO &operator<<(FastIO &io, const T &x){
    io.out(x);
    return io;
  }
};
FastIO io;
} // namespace FastIO

using FastIO::io;
#define cin io
#define cout io
#line 8 "test/yosupo/Data-Structure/Queue-Operate-All-Composite.test.cpp"

using mint = Mint<998244353>;

//Data: ax+b
struct Data {
  mint a,b;
};
//合成関数 g(f(x))
Data op(const Data &l, const Data &m){
  return { l.a*m.a, l.b*m.a + m.b };
}
const Data e(){
  return { 1, 0 };
}
int main(){
  int q;
  cin >> q;
  SWAG<Data, op, e> sw;
  rep(i, q){
    int t; cin >> t;
    if(t == 0){
      int a,b;
      cin >> a >> b;
      sw.push_back({ a, b });
    }else if(t == 1){
      sw.pop();
    }else{
      int x; cin >> x;
      const Data l = sw.fold(0, sw.size());
      cout << (l.a*x + l.b).x << '\n';
    }
  }
}
Back to top page