結果

問題 No.117 組み合わせの数
コンテスト
ユーザー akusyounin2412
提出日時 2018-04-03 00:43:23
言語 C++14
(gcc 13.3.0 + boost 1.87.0)
結果
RE  
実行時間 -
コード長 2,832 bytes
コンパイル時間 1,123 ms
コンパイル使用メモリ 120,736 KB
実行使用メモリ 20,096 KB
最終ジャッジ日時 2024-06-26 06:55:04
合計ジャッジ時間 2,858 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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ファイルパターン 結果
other RE * 1
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ソースコード

diff # 

# include <iostream>
# include <algorithm>
#include <array>
# include <cassert>
#include <cctype>
#include <climits>
#include <numeric>
# include <vector>
# include <string>
# include <set>
# include <map>
# include <cmath>
# include <iomanip>
# include <functional>
# include <tuple>
# include <utility>
# include <stack>
# include <queue>
# include <list>
# include <bitset>
# include <complex>
# include <chrono>
# include <random>
# include <limits.h>
# include <unordered_map>
# include <unordered_set>
# include <deque>
# include <cstdio>
# include <cstring>
#include <stdio.h>
#include <stdlib.h>
#include <cstdint>
using namespace std;
using LL = long long;
using ULL = unsigned long long;
constexpr long long MOD = 1000000000 + 7;
constexpr long long INF = std::numeric_limits<long long>::max();
const double PI = acos(-1);
#define fir first
#define sec second
#define debug(x) cerr<<#x<<": "<<x<<'\n'
typedef pair<LL, LL> Pll;
typedef pair<LL, pair<LL, LL>> Ppll;
typedef pair<LL, pair<LL, bitset<100001>>> Pbll;
typedef pair<LL, pair<LL, vector<LL>>> Pvll;
typedef pair<LL, LL> Vec2;
struct Tll { LL first, second, third; };
typedef pair<LL, Tll> Ptll;
#define rep(i,rept) for(LL i=0;i<rept;i++)
#define Mfor(i,mf) for(LL i=mf-1;i>=0;i--)
LL h, w, n, m, k, s, t, q, sum, last, cnt, ans,a[200010];
string str;
struct Edge { LL to, cost; };
vector<Edge>vec;
bool f;
char c;
void YN(bool f) {
	if (f)
		cout << "YES" << endl;
	else
		cout << "NO" << endl;
}
void yn(bool f) {
	if (f)
		cout << "Yes" << endl;
	else
		cout << "No" << endl;
}
struct Combination {
	int mod;
	vector< int64_t > mfact, rfact;

	Combination(int sz, int mod) : mfact(sz + 1), rfact(sz + 1), mod(mod) {
		mfact[0] = 1;
		for (int i = 1; i < mfact.size(); i++) {
			mfact[i] = mfact[i - 1] * i % mod;
		}
		rfact[sz] = inv(mfact[sz]);
		for (int i = sz - 1; i >= 0; i--) {
			rfact[i] = rfact[i + 1] * (i + 1) % mod;
		}
	}

	int64_t fact(int k) const {
		return (mfact[k]);
	}

	int64_t pow(int64_t x, int64_t n) const {
		int64_t ret = 1;
		while (n > 0) {
			if (n & 1) (ret *= x) %= mod;
			(x *= x) %= mod;
			n >>= 1;
		}
		return (ret);
	}

	int64_t inv(int64_t x) const {
		return (pow(x, mod - 2));
	}

	int64_t P(int n, int r) const {
		if (r < 0 || n < r) return (0);
		return (mfact[n] * rfact[n - r] % mod);
	}

	int64_t C(int p, int q) const {
		if (q < 0 || p < q) return (0);
		return (mfact[p] * rfact[q] % mod * rfact[p - q] % mod);
	}

	int64_t H(int n, int r) const {
		if (n < 0 || r < 0) return (0);
		return (r == 0 ? 1 : C(n + r - 1, r));
	}
};

int main() {
	cin >> n;
	Combination comb(1000010, MOD);
	rep(i, n) {
		char ch;
		LL x, y;
		cin >> c >> ch >> x >> ch >> y >> ch;
		if (c == 'P')
			cout << comb.P(x,y) << endl;
		else if(c=='C')cout << comb.C(x, y) << endl;
		else cout << comb.H(x, y) << endl;
	}
	return 0;
}
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