結果
問題 | No.1011 Infinite Stairs |
ユーザー | first_vil |
提出日時 | 2020-03-20 21:35:22 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 222 ms / 2,000 ms |
コード長 | 4,276 bytes |
コンパイル時間 | 1,617 ms |
コンパイル使用メモリ | 172,496 KB |
実行使用メモリ | 109,440 KB |
最終ジャッジ日時 | 2024-07-17 11:45:01 |
合計ジャッジ時間 | 3,311 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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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 | 2 ms
6,812 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 5 ms
6,940 KB |
testcase_03 | AC | 146 ms
73,088 KB |
testcase_04 | AC | 24 ms
14,976 KB |
testcase_05 | AC | 222 ms
109,440 KB |
testcase_06 | AC | 2 ms
6,940 KB |
testcase_07 | AC | 4 ms
6,944 KB |
testcase_08 | AC | 2 ms
6,940 KB |
testcase_09 | AC | 2 ms
6,944 KB |
testcase_10 | AC | 3 ms
6,940 KB |
testcase_11 | AC | 28 ms
17,536 KB |
testcase_12 | AC | 3 ms
6,944 KB |
testcase_13 | AC | 19 ms
11,904 KB |
testcase_14 | AC | 2 ms
6,948 KB |
testcase_15 | AC | 23 ms
14,464 KB |
testcase_16 | AC | 105 ms
52,608 KB |
testcase_17 | AC | 10 ms
7,168 KB |
testcase_18 | AC | 61 ms
31,360 KB |
testcase_19 | AC | 3 ms
6,940 KB |
testcase_20 | AC | 2 ms
6,944 KB |
testcase_21 | AC | 23 ms
14,720 KB |
testcase_22 | AC | 44 ms
26,240 KB |
testcase_23 | AC | 28 ms
17,024 KB |
testcase_24 | AC | 29 ms
18,048 KB |
testcase_25 | AC | 47 ms
27,520 KB |
testcase_26 | AC | 11 ms
8,192 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; using ld = long double; using VI = vector<int>; using VL = vector<ll>; using loop = int; template<class T> using PQ = priority_queue<T, vector<T>, greater<T>>; #define FOR(i,a,n) for(loop (i)=(a);(i)<(n);++(i)) #define eFOR(i,a,n) for(loop (i)=(a);(i)<=(n);++(i)) #define rFOR(i,a,n) for(loop (i)=(n)-1;(i)>=(a);--(i)) #define erFOR(i,a,n) for(loop (i)=(n);(i)>=(a);--(i)) #define each(i, a) for(auto &i : a) #define SORT(i) sort((i).begin(),(i).end()) #define rSORT(i,a) sort((i).begin(),(i).end(),(a)) #define all(i) (i).begin(),(i).end() #define out(y,x) ((y) < 0 || h <= (y) || (x) < 0 || w <= (x)) #define line cout << "------------------------\n" #define ENDL(i,n) ((i) == (n) - 1 ? "\n" : " ") //#define stop system("pause") //comment out this on AOJ. constexpr ll INF = 1000000000; constexpr ll LLINF = 1LL << 60; constexpr ll mod = 1000000007; constexpr ll MOD = 998244353; constexpr ld eps = 1e-10; constexpr ld pi = 3.1415926535897932; template<class T>inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; }return false; } template<class T>inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; }return false; } inline void init() { cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } template<class T>inline istream& operator>>(istream& is, vector<T>& v) { for (auto& elemnt : v)is >> elemnt; return is; } template<class T, class U>inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; } template<class T>inline vector<T> vec(size_t a) { return vector<T>(a); } template<class T>inline vector<T> defvec(T def, size_t a) { return vector<T>(a, def); } template<class T, class... Ts>inline auto vec(size_t a, Ts... ts) { return vector<decltype(vec<T>(ts...))>(a, vec<T>(ts...)); } template<class T, class... Ts>inline auto defvec(T def, size_t a, Ts... ts) { return vector<decltype(defvec<T>(def, ts...))>(a, defvec<T>(def, ts...)); } template<int modulo> struct ModInt { int x; ModInt() : x(0) {} ModInt(long long y) : x(y >= 0 ? y % modulo : (modulo - (-y) % modulo) % modulo) {} ModInt& operator+=(const ModInt& p) { if ((x += p.x) >= modulo) x -= modulo; return *this; } ModInt& operator-=(const ModInt& p) { if ((x += modulo - p.x) >= modulo) x -= modulo; return *this; } ModInt& operator*=(const ModInt& p) { x = (int)(1LL * x * p.x % modulo); return *this; } ModInt& operator/=(const ModInt& p) { *this *= p.inverse(); return *this; } ModInt operator-() const { return ModInt(-x); } ModInt operator+(const ModInt& p) const { return ModInt(*this) += p; } ModInt operator-(const ModInt& p) const { return ModInt(*this) -= p; } ModInt operator*(const ModInt& p) const { return ModInt(*this) *= p; } ModInt operator/(const ModInt& p) const { return ModInt(*this) /= p; } bool operator==(const ModInt& p) const { return x == p.x; } bool operator!=(const ModInt& p) const { return x != p.x; } ModInt inverse() const { int a = x, b = modulo, u = 1, v = 0, t; while (b > 0) { t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } return ModInt(u); } ModInt pow(int e) { long long a = 1, p = x; while (e > 0) { if (e % 2 == 0) { p = (p * p) % modulo; e /= 2; } else { a = (a * p) % modulo; e--; } } return ModInt(a); } friend ostream& operator<<(ostream& os, const ModInt<modulo>& p) { return os << p.x; } friend istream& operator>>(istream& is, ModInt<modulo>& a) { long long x; is >> x; a = ModInt<modulo>(x); return (is); } }; using modint = ModInt<mod>; int main() { init(); ll n, d, k; cin >> n >> d >> k; auto dp = vec<modint>(n + 1, k + 1); dp[0][0] = 1; FOR(i, 0, n) { FOR(j, 0, k)dp[i][j + 1] += dp[i][j]; eFOR(j, 1, k) { dp[i + 1][j] += dp[i][j - 1]; if (0 < j - d)dp[i + 1][j] -= dp[i][j - d - 1]; } } cout << dp[n][k] << "\n"; }