結果

問題 No.1111 コード進行
ユーザー FF256grhyFF256grhy
提出日時 2020-07-10 22:56:49
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 251 ms / 2,000 ms
コード長 4,390 bytes
コンパイル時間 4,183 ms
コンパイル使用メモリ 211,372 KB
実行使用メモリ 218,496 KB
最終ジャッジ日時 2024-10-11 13:36:50
合計ジャッジ時間 7,163 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 5 ms
6,912 KB
testcase_01 AC 4 ms
6,016 KB
testcase_02 AC 3 ms
5,504 KB
testcase_03 AC 4 ms
5,376 KB
testcase_04 AC 4 ms
5,376 KB
testcase_05 AC 5 ms
6,016 KB
testcase_06 AC 7 ms
9,600 KB
testcase_07 AC 11 ms
13,312 KB
testcase_08 AC 11 ms
12,672 KB
testcase_09 AC 6 ms
6,784 KB
testcase_10 AC 13 ms
16,768 KB
testcase_11 AC 9 ms
11,136 KB
testcase_12 AC 8 ms
9,600 KB
testcase_13 AC 7 ms
8,960 KB
testcase_14 AC 11 ms
12,544 KB
testcase_15 AC 13 ms
15,360 KB
testcase_16 AC 9 ms
10,368 KB
testcase_17 AC 14 ms
16,768 KB
testcase_18 AC 9 ms
12,544 KB
testcase_19 AC 4 ms
5,504 KB
testcase_20 AC 5 ms
6,784 KB
testcase_21 AC 11 ms
13,952 KB
testcase_22 AC 13 ms
16,256 KB
testcase_23 AC 9 ms
11,776 KB
testcase_24 AC 9 ms
10,368 KB
testcase_25 AC 15 ms
16,896 KB
testcase_26 AC 14 ms
14,720 KB
testcase_27 AC 5 ms
6,016 KB
testcase_28 AC 114 ms
131,840 KB
testcase_29 AC 113 ms
126,208 KB
testcase_30 AC 86 ms
87,552 KB
testcase_31 AC 17 ms
21,120 KB
testcase_32 AC 201 ms
164,736 KB
testcase_33 AC 83 ms
56,960 KB
testcase_34 AC 97 ms
111,104 KB
testcase_35 AC 167 ms
192,640 KB
testcase_36 AC 143 ms
133,376 KB
testcase_37 AC 134 ms
123,264 KB
testcase_38 AC 116 ms
88,960 KB
testcase_39 AC 118 ms
83,456 KB
testcase_40 AC 157 ms
140,416 KB
testcase_41 AC 138 ms
154,752 KB
testcase_42 AC 139 ms
131,840 KB
testcase_43 AC 110 ms
85,504 KB
testcase_44 AC 73 ms
76,928 KB
testcase_45 AC 122 ms
129,792 KB
testcase_46 AC 226 ms
218,368 KB
testcase_47 AC 226 ms
218,496 KB
testcase_48 AC 251 ms
218,496 KB
testcase_49 AC 251 ms
218,496 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

#include <bits/stdc++.h>
using namespace std;
using LL = long long int;
#define incID(i, l, r) for(int i = (l)    ; i <  (r); ++i)
#define decID(i, l, r) for(int i = (r) - 1; i >= (l); --i)
#define incII(i, l, r) for(int i = (l)    ; i <= (r); ++i)
#define decII(i, l, r) for(int i = (r)    ; i >= (l); --i)
#define inc(i, n)  incID(i, 0, n)
#define dec(i, n)  decID(i, 0, n)
#define inc1(i, n) incII(i, 1, n)
#define dec1(i, n) decII(i, 1, n)
#define inID(v, l, r) ((l) <= (v) && (v) <  (r))
#define inII(v, l, r) ((l) <= (v) && (v) <= (r))
#define PB push_back
#define EB emplace_back
#define MP make_pair
#define MT make_tuple
#define FI first
#define SE second
#define FR front()
#define BA back()
#define ALL(v) v.begin(), v.end()
#define RALL(v) v.rbegin(), v.rend()
auto setmin   = [](auto & a, auto b) { return (b <  a ? a = b, true : false); };
auto setmax   = [](auto & a, auto b) { return (b >  a ? a = b, true : false); };
auto setmineq = [](auto & a, auto b) { return (b <= a ? a = b, true : false); };
auto setmaxeq = [](auto & a, auto b) { return (b >= a ? a = b, true : false); };
#define SI(v) static_cast<int>(v.size())
#define RF(e, v) for(auto & e: v)
#define until(e) while(! (e))
#define if_not(e) if(! (e))
#define ef else if
#define UR assert(false)
#define IN(T, ...) T __VA_ARGS__; IN_(__VA_ARGS__);
void IN_() { };
template<typename T, typename ... U> void IN_(T &  a, U &  ... b) { cin >> a; IN_(b ...); };
template<typename T                > void OUT(T && a            ) { cout << a << endl; }
template<typename T, typename ... U> void OUT(T && a, U && ... b) { cout << a << " "; OUT(b ...); }

// ---- ----

template<LL M> class ModInt {
private:
	LL v;
	pair<LL, LL> ext_gcd(LL a, LL b) {
		if(b == 0) { assert(a == 1); return { 1, 0 }; }
		auto p = ext_gcd(b, a % b);
		return { p.SE, p.FI - (a / b) * p.SE };
	}
public:
	ModInt(LL vv = 0) { v = vv; if(abs(v) >= M) { v %= M; } if(v < 0) { v += M; } }
	LL get_v() { return v; }
	ModInt inv() { return ext_gcd(M, v).SE; }
	ModInt exp(LL b) {
		ModInt p = 1, a = v; if(b < 0) { a = a.inv(); b = -b; }
		while(b) { if(b & 1) { p *= a; } a *= a; b >>= 1; }
		return p;
	}
	friend bool      operator< (ModInt    a, ModInt   b) { return (a.v <  b.v); }
	friend bool      operator> (ModInt    a, ModInt   b) { return (a.v >  b.v); }
	friend bool      operator<=(ModInt    a, ModInt   b) { return (a.v <= b.v); }
	friend bool      operator>=(ModInt    a, ModInt   b) { return (a.v >= b.v); }
	friend bool      operator==(ModInt    a, ModInt   b) { return (a.v == b.v); }
	friend bool      operator!=(ModInt    a, ModInt   b) { return (a.v != b.v); }
	friend ModInt    operator+ (ModInt    a            ) { return ModInt(+a.v); }
	friend ModInt    operator- (ModInt    a            ) { return ModInt(-a.v); }
	friend ModInt    operator+ (ModInt    a, ModInt   b) { return ModInt(a.v + b.v); }
	friend ModInt    operator- (ModInt    a, ModInt   b) { return ModInt(a.v - b.v); }
	friend ModInt    operator* (ModInt    a, ModInt   b) { return ModInt(a.v * b.v); }
	friend ModInt    operator/ (ModInt    a, ModInt   b) { return a * b.inv(); }
	friend ModInt    operator^ (ModInt    a, LL       b) { return a.exp(b); }
	friend ModInt  & operator+=(ModInt  & a, ModInt   b) { return (a = a + b); }
	friend ModInt  & operator-=(ModInt  & a, ModInt   b) { return (a = a - b); }
	friend ModInt  & operator*=(ModInt  & a, ModInt   b) { return (a = a * b); }
	friend ModInt  & operator/=(ModInt  & a, ModInt   b) { return (a = a / b); }
	friend ModInt  & operator^=(ModInt  & a, LL       b) { return (a = a ^ b); }
	friend istream & operator>>(istream & s, ModInt & b) { s >> b.v; b = ModInt(b.v); return s; }
	friend ostream & operator<<(ostream & s, ModInt   b) { return (s << b.v); }
};

// ----

using MI = ModInt<1'000'000'007>;

template<typename T> T MV(T v) { return v; }
template<typename T, typename ... U> auto MV(T v, int a, U ... b) { return vector<decltype(MV(v, b ...))>(a, MV(v, b ...)); }

int main() {
	IN(int, n, m, k);
	n--;
	auto dp = MV<MI>(0, n + 1, 300, 301);
	vector<array<int, 3>> edge;
	inc(i, m) {
		IN(int, a, b, c);
		a--; b--;
		edge.PB({ a, b, c });
	}
	
	inc(v, 300) { dp[0][v][0] = 1; }
	inc(i, n) {
		for(auto [a, b, c]: edge) {
			inc(s, 301) {
				if(s + c > 300) { break; }
				dp[i + 1][b][s + c] += dp[i][a][s];
			}
		}
	}
	MI ans = 0;
	inc(v, 300) { ans += dp[n][v][k]; }
	OUT(ans);
}
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