結果
| 問題 |
No.147 試験監督(2)
|
| コンテスト | |
| ユーザー |
koyopro
|
| 提出日時 | 2020-01-08 00:38:48 |
| 言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 3,647 bytes |
| コンパイル時間 | 2,842 ms |
| コンパイル使用メモリ | 160,324 KB |
| 実行使用メモリ | 6,820 KB |
| 最終ジャッジ日時 | 2024-11-23 01:24:06 |
| 合計ジャッジ時間 | 2,870 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| other | AC * 1 WA * 3 |
ソースコード
#include "bits/stdc++.h"
using namespace std;
#define int long long
#define FOR(i, a, b) for(int i=(a);i<(b);i++)
#define RFOR(i, a, b) for(int i=(b-1);i>=(a);i--)
#define REP(i, n) for(int i=0; i<(n); i++)
#define RREP(i, n) for(int i=(n-1); i>=0; i--)
#define ALL(a) (a).begin(),(a).end()
#define UNIQUE_SORT(l) sort(ALL(l)); l.erase(unique(ALL(l)), l.end());
#define CONTAIN(a, b) find(ALL(a), (b)) != (a).end()
#define array2(type, x, y) array<array<type, y>, x>
#define vector2(type) vector<vector<type> >
#define out(...) printf(__VA_ARGS__)
int dxy[] = {0, 1, 0, -1, 0};
void solve();
signed main()
{
#if DEBUG
std::ifstream in("input.txt");
std::cin.rdbuf(in.rdbuf());
#endif
cin.tie(0);
ios::sync_with_stdio(false);
solve();
return 0;
}
/*================================*/
template<int MOD> struct ModInt {
static const int Mod = MOD; unsigned x; ModInt() : x(0) { }
ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
int get() const { return (int)x; }
ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }
ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }
ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }
ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
ModInt operator+(ModInt that) const { return ModInt(*this) += that; }
ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }
ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }
ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }
ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;
while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }
return ModInt(u); }
bool operator==(ModInt that) const { return x == that.x; }
bool operator!=(ModInt that) const { return x != that.x; }
ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }
};
template<int MOD> ostream& operator<<(ostream& st, const ModInt<MOD> a) { st << a.get(); return st; };
template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {
ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }
typedef ModInt<1000000007> mint;
int MOD=1e9+7;
int N,M,Q;
int C;
string D;
mint calcD() {
mint ret = mint(0);
RREP(i,D.size()) {
ret += mint(D[D.size()-1-i] - '0') * (mint(10) ^ i);
}
return ret;
}
void matmul(int a[2][2], int b[2][2]) {
int tmp[2][2];
tmp[0][0] = (a[0][0]*b[0][0] + a[0][1]*b[1][0]) % MOD;
tmp[0][1] = (a[0][0]*b[0][1] + a[0][1]*b[1][1]) % MOD;
tmp[1][0] = (a[1][0]*b[0][0] + a[1][1]*b[1][0]) % MOD;
tmp[1][1] = (a[1][0]*b[0][1] + a[1][1]*b[1][1]) % MOD;
REP(x,2)REP(y,2) a[x][y]=tmp[x][y];
}
void matmul(int a[2][2], int b[2]) {
int tmp[2];
tmp[0] = (a[0][0]*b[0] + a[0][1]*b[1]) % MOD;
tmp[1] = (a[1][0]*b[0] + a[1][1]*b[1]) % MOD;
REP(i,2)b[i]=tmp[i];
}
int fib(int c) {
int base[2][2] = {
{1,1},
{1,0}
};
int current[2] = {1,0};
while(c) {
if (c%2) matmul(base, current);
matmul(base, base);
c >>= 1;
}
return current[1];
}
void solve() {
cin>>N;
mint ans = mint(1);
while(N--) {
D.clear();
cin>>C>>D;
int c = fib(C+2);
int d = calcD().get();
ans *= mint(c) ^ d;
}
cout << ans << endl;
}
koyopro