結果

問題 No.1258 コインゲーム
コンテスト
ユーザー nok0
提出日時 2020-10-15 22:38:01
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 96 ms / 2,000 ms
コード長 5,090 bytes
コンパイル時間 3,991 ms
コンパイル使用メモリ 219,692 KB
最終ジャッジ日時 2025-01-15 07:40:04
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
other AC * 50
権限があれば一括ダウンロードができます
コンパイルメッセージ
main.cpp: In function ‘void scan(char*)’:
main.cpp:58:28: warning: ignoring return value of ‘int scanf(const char*, ...)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   58 | void scan(char a[]) { scanf("%s", a); }
      |                       ~~~~~^~~~~~~~~

ソースコード

diff # 

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#pragma region Macros
#define ll long long
#define ld long double
#define FOR(i, l, r) for(ll i = (l); i < (r); ++i)
#define REP(i, n) FOR(i, 0, n)
#define REPS(i, n) FOR(i, 1, n + 1)
#define RFOR(i, l, r) for(ll i = (l); i >= (r); --i)
#define RREP(i, n) RFOR(i, n - 1, 0)
#define RREPS(i, n) RFOR(i, n, 1)
#define pb push_back
#define eb emplace_back
#define SZ(x) ((ll)(x).size())
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
template <class T = ll>
using V = vector<T>;
template <class T = ll>
using VV = V<V<T>>;
using P = pair<ll, ll>;
#define VEC(type, name, size) \
	V<type> name(size);       \
	IN(name)
#define VVEC(type, name, h, w)    \
	VV<type> name(h, V<type>(w)); \
	IN(name)
#define INT(...)     \
	int __VA_ARGS__; \
	IN(__VA_ARGS__)
#define LL(...)     \
	ll __VA_ARGS__; \
	IN(__VA_ARGS__)
#define STR(...)        \
	string __VA_ARGS__; \
	IN(__VA_ARGS__)
#define CHAR(...)     \
	char __VA_ARGS__; \
	IN(__VA_ARGS__)
#define DOUBLE(...)     \
	DOUBLE __VA_ARGS__; \
	IN(__VA_ARGS__)
#define LD(...)     \
	LD __VA_ARGS__; \
	IN(__VA_ARGS__)
template <class T>
void scan(T a) {
	cin >> a;
}
void scan(int &a) { cin >> a; }
void scan(long long &a) { cin >> a; }
void scan(char &a) { cin >> a; }
void scan(double &a) { cin >> a; }
void scan(long double &a) { cin >> a; }
void scan(char a[]) { scanf("%s", a); }
void scan(string &a) { cin >> a; }
template <class T>
void scan(V<T> &);
template <class T, class L>
void scan(pair<T, L> &);
template <class T>
void scan(V<T> &a) {
	for(auto &i : a) scan(i);
}
template <class T, class L>
void scan(pair<T, L> &p) {
	scan(p.first);
	scan(p.second);
}
template <class T>
void scan(T &a) {
	cin >> a;
}
void IN() {}
template <class Head, class... Tail>
void IN(Head &head, Tail &... tail) {
	scan(head);
	IN(tail...);
}
template <class T>
inline void print(T x) {
	cout << x << '\n';
}
struct inputoutputfaster {
	inputoutputfaster() {
		ios::sync_with_stdio(false);
		cin.tie(nullptr);
		cout << fixed << setprecision(15);
	}
} inputoutputfaster_;
template <class T>
V<T> press(V<T> &x) {
	V<T> res = x;
	sort(all(res));
	res.erase(unique(all(res)), res.end());
	REP(i, SZ(x)) { x[i] = lower_bound(all(res), x[i]) - res.begin(); }
	return res;
}
template <class T>
inline bool chmin(T &a, T b) {
	if(a > b) {
		a = b;
		return true;
	}
	return false;
}
template <class T>
inline bool chmax(T &a, T b) {
	if(a < b) {
		a = b;
		return true;
	}
	return false;
}
inline void Yes(bool b = true) { cout << (b ? "Yes" : "No") << '\n'; }
inline void YES(bool b = true) { cout << (b ? "YES" : "NO") << '\n'; }
inline void err(bool b = true) {
	if(b) {
		cout << -1 << '\n';
		exit(0);
	}
}
template <class T>
inline void fin(bool b = true, T e = 0) {
	if(b) {
		cout << e << '\n';
		exit(0);
	}
}
template <class T>
T divup(T x, T y) {
	return (x + (y - 1)) / y;
}
template <typename T>
T pow(T a, long long n, T e = 1) {
	T ret = e;
	while(n) {
		if(n & 1) ret *= a;
		a *= a;
		n >>= 1;
	}
	return ret;
}
const ll INF = 1e18;
#pragma endregion

//Modulo Calculation
const int MOD = 1e9 + 7;
// const int MOD = 998244353;

//ModInt
template <int mod>
struct ModInt {
	int x;
	ModInt() : x(0) {}
	ModInt(ll x_) {
		if((x = x_ % mod + mod) >= mod) x -= mod;
	}
	ModInt &operator+=(ModInt rhs) {
		if((x += rhs.x) >= mod) x -= mod;
		return *this;
	}
	ModInt &operator-=(ModInt rhs) {
		if((x -= rhs.x) < 0) x += mod;
		return *this;
	}
	ModInt &operator*=(ModInt rhs) {
		x = (unsigned long long)x * rhs.x % mod;
		return *this;
	}
	ModInt &operator/=(ModInt rhs) {
		x = (unsigned long long)x * rhs.inv().x % mod;
		return *this;
	}

	ModInt operator-() const { return -x < 0 ? mod - x : -x; }
	ModInt operator+(ModInt rhs) const { return ModInt(*this) += rhs; }
	ModInt operator-(ModInt rhs) const { return ModInt(*this) -= rhs; }
	ModInt operator*(ModInt rhs) const { return ModInt(*this) *= rhs; }
	ModInt operator/(ModInt rhs) const { return ModInt(*this) /= rhs; }
	ModInt &operator++() {
		*this += 1;
		return *this;
	}
	ModInt operator++(int) {
		*this += 1;
		return *this - 1;
	}
	ModInt &operator--() {
		*this -= 1;
		return *this;
	}
	ModInt operator--(int) {
		*this -= 1;
		return *this + 1;
	}
	bool operator==(ModInt rhs) const { return x == rhs.x; }
	bool operator!=(ModInt rhs) const { return x != rhs.x; }
	bool operator<=(ModInt rhs) const { return x <= rhs.x; }
	bool operator>=(ModInt rhs) const { return x >= rhs.x; }
	bool operator<(ModInt rhs) const { return x < rhs.x; }
	bool operator>(ModInt rhs) const { return x > rhs.x; }
	ModInt inv() const { return pow(*this, mod - 2); }

	friend ostream &operator<<(ostream &s, ModInt<mod> a) {
		s << a.x;
		return s;
	}
	friend istream &operator>>(istream &s, ModInt<mod> &a) {
		s >> a.x;
		return s;
	}
};
using mint = ModInt<MOD>;

void solve() {
	INT(n, m, x);
	print((pow(mint(m + 1), n) + pow(mint(m - 1), n) * ((x ^ n) & 1 ? -1 : 1)) / 2);
}

int main() {
	INT(t);
	while(t--) solve();
}
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