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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#307138#8033. Fast Modhos_lyricAC ✓707ms3860kbC++144.5kb2024-01-18 00:57:032024-01-18 00:57:03

Judging History

你现在查看的是最新测评结果

  • [2024-01-18 00:57:03]
  • 评测
  • 测评结果:AC
  • 用时:707ms
  • 内存:3860kb
  • [2024-01-18 00:57:03]
  • 提交

answer

#include <cassert>
#include <cmath>
#include <cstdint>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <functional>
#include <iostream>
#include <limits>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <sstream>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

using namespace std;

using Int = long long;

template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; };
template <class T> ostream &operator<<(ostream &os, const vector<T> &as) { const int sz = as.size(); os << "["; for (int i = 0; i < sz; ++i) { if (i >= 256) { os << ", ..."; break; } if (i > 0) { os << ", "; } os << as[i]; } return os << "]"; }
template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; }
template <class T> bool chmin(T &t, const T &f) { if (t > f) { t = f; return true; } return false; }
template <class T> bool chmax(T &t, const T &f) { if (t < f) { t = f; return true; } return false; }
#define COLOR(s) ("\x1b[" s "m")

////////////////////////////////////////////////////////////////////////////////
// Barrett
struct ModInt {
  static unsigned M;
  static unsigned long long NEG_INV_M;
  static void setM(unsigned m) { M = m; NEG_INV_M = -1ULL / M; }
  unsigned x;
  ModInt() : x(0U) {}
  ModInt(unsigned x_) : x(x_ % M) {}
  ModInt(unsigned long long x_) : x(x_ % M) {}
  ModInt(int x_) : x(((x_ %= static_cast<int>(M)) < 0) ? (x_ + static_cast<int>(M)) : x_) {}
  ModInt(long long x_) : x(((x_ %= static_cast<long long>(M)) < 0) ? (x_ + static_cast<long long>(M)) : x_) {}
  ModInt &operator+=(const ModInt &a) { x = ((x += a.x) >= M) ? (x - M) : x; return *this; }
  ModInt &operator-=(const ModInt &a) { x = ((x -= a.x) >= M) ? (x + M) : x; return *this; }
  ModInt &operator*=(const ModInt &a) {
    const unsigned long long y = static_cast<unsigned long long>(x) * a.x;
    const unsigned long long q = static_cast<unsigned long long>((static_cast<unsigned __int128>(NEG_INV_M) * y) >> 64);
    const unsigned long long r = y - M * q;
    x = r - M * (r >= M);
    return *this;
  }
  ModInt &operator/=(const ModInt &a) { return (*this *= a.inv()); }
  ModInt pow(long long e) const {
    if (e < 0) return inv().pow(-e);
    ModInt a = *this, b = 1U; for (; e; e >>= 1) { if (e & 1) b *= a; a *= a; } return b;
  }
  ModInt inv() const {
    unsigned a = M, b = x; int y = 0, z = 1;
    for (; b; ) { const unsigned q = a / b; const unsigned c = a - q * b; a = b; b = c; const int w = y - static_cast<int>(q) * z; y = z; z = w; }
    assert(a == 1U); return ModInt(y);
  }
  ModInt operator+() const { return *this; }
  ModInt operator-() const { ModInt a; a.x = x ? (M - x) : 0U; return a; }
  ModInt operator+(const ModInt &a) const { return (ModInt(*this) += a); }
  ModInt operator-(const ModInt &a) const { return (ModInt(*this) -= a); }
  ModInt operator*(const ModInt &a) const { return (ModInt(*this) *= a); }
  ModInt operator/(const ModInt &a) const { return (ModInt(*this) /= a); }
  template <class T> friend ModInt operator+(T a, const ModInt &b) { return (ModInt(a) += b); }
  template <class T> friend ModInt operator-(T a, const ModInt &b) { return (ModInt(a) -= b); }
  template <class T> friend ModInt operator*(T a, const ModInt &b) { return (ModInt(a) *= b); }
  template <class T> friend ModInt operator/(T a, const ModInt &b) { return (ModInt(a) /= b); }
  explicit operator bool() const { return x; }
  bool operator==(const ModInt &a) const { return (x == a.x); }
  bool operator!=(const ModInt &a) const { return (x != a.x); }
  friend std::ostream &operator<<(std::ostream &os, const ModInt &a) { return os << a.x; }
};
unsigned ModInt::M;
unsigned long long ModInt::NEG_INV_M;
// !!!Use ModInt::setM!!!
////////////////////////////////////////////////////////////////////////////////

using Mint = ModInt;

int main() {
  Mint A, B, X0, Y0, X1, Y1;
  int N, M;
  for (; ~scanf("%u%u%u%u%u%u%d%d", &A.x, &B.x, &X0.x, &Y0.x, &X1.x, &Y1.x, &N, &M); ) {
    Mint::setM(M);
    Mint ans = 0;
    Mint x2 = X0, x1 = X1;
    Mint y2 = Y0, y1 = Y1;
    for (int n = 2; n <= N; ++n) {
      const Mint x = A * x1 + x2 * y1;
      const Mint y = B * y1 + y2 * x1;
      ans += x;
      x2 = x1; x1 = x;
      y2 = y1; y1 = y;
    }
    printf("%u\n", ans.x);
  }
  return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3764kb

input:

114 514 1919 810 2024 112 154 12345678

output:

10095098

result:

ok answer is '10095098'

Test #2:

score: 0
Accepted
time: 71ms
memory: 3844kb

input:

299441828 557975370 185825413 389867512 789055585 702427833 10000000 998244353

output:

213479368

result:

ok answer is '213479368'

Test #3:

score: 0
Accepted
time: 212ms
memory: 3860kb

input:

201640599 316730877 236731096 870547384 321803723 818638005 30000000 998244353

output:

184315876

result:

ok answer is '184315876'

Test #4:

score: 0
Accepted
time: 705ms
memory: 3856kb

input:

454295813 797560957 820671325 549131050 200870107 596997226 100000000 998244353

output:

571671285

result:

ok answer is '571671285'

Test #5:

score: 0
Accepted
time: 707ms
memory: 3848kb

input:

568746783 797268245 962129329 543463404 966124052 703429023 100000000 999999999

output:

890564628

result:

ok answer is '890564628'

Test #6:

score: 0
Accepted
time: 705ms
memory: 3784kb

input:

134942359 726105292 765855056 658375599 203861321 577278130 100000000 1000000000

output:

837667109

result:

ok answer is '837667109'

Test #7:

score: 0
Accepted
time: 705ms
memory: 3848kb

input:

241497218 519623971 533438442 343085870 157943693 105603836 100000000 999999996

output:

122500520

result:

ok answer is '122500520'

Extra Test:

score: 0
Extra Test Passed