結果
問題 | No.269 見栄っ張りの募金活動 |
ユーザー | arktan763 |
提出日時 | 2019-12-26 07:30:05 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 38 ms / 5,000 ms |
コード長 | 6,774 bytes |
コンパイル時間 | 1,647 ms |
コンパイル使用メモリ | 166,960 KB |
実行使用メモリ | 19,840 KB |
最終ジャッジ日時 | 2024-10-02 10:31:04 |
合計ジャッジ時間 | 2,718 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 5 ms
5,504 KB |
testcase_04 | AC | 26 ms
19,840 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 38 ms
19,840 KB |
testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 22 ms
19,712 KB |
testcase_12 | AC | 2 ms
5,248 KB |
testcase_13 | AC | 12 ms
11,264 KB |
testcase_14 | AC | 20 ms
19,840 KB |
testcase_15 | AC | 14 ms
13,184 KB |
testcase_16 | AC | 2 ms
5,248 KB |
testcase_17 | AC | 2 ms
5,248 KB |
testcase_18 | AC | 29 ms
17,536 KB |
testcase_19 | AC | 13 ms
10,880 KB |
testcase_20 | AC | 8 ms
9,728 KB |
testcase_21 | AC | 17 ms
17,280 KB |
testcase_22 | AC | 8 ms
7,936 KB |
testcase_23 | AC | 3 ms
5,248 KB |
testcase_24 | AC | 12 ms
12,544 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define int long long // #define double long double #define FOR(i, a, b) for(int i = (a); i < (b); ++i) #define FORR(i, a, b) for(int i = (a); i > (b); --i) #define REP(i, n) for(int i = 0; i < (n); ++i) #define REPR(i, n) for(int i = n; i >= 0; i--) #define FOREACH(x, a) for(auto &(x) : (a)) #define VECCIN(x) \ for(auto &youso_ : (x)) cin >> youso_ #define bitcnt(x) __builtin_popcount(x) #define lbit(x) __builtin_ffsll(x) #define rbit(x) __builtin_clzll(x) #define fi first #define se second #define All(a) (a).begin(), (a).end() #define rAll(a) (a).rbegin(), (a).rend() #define cinfast() cin.tie(0), ios::sync_with_stdio(false) #define PERM(c) \ sort(All(c)); \ for(bool cp = true; cp; cp = next_permutation(All(c))) #define MKORDER(n) \ vector<int> od(n); \ iota(All(od), 0LL); template <typename T = long long> inline T IN() { T x; cin >> x; return (x); } inline void CIN() {} template <class Head, class... Tail> inline void CIN(Head &&head, Tail &&... tail) { cin >> head; CIN(move(tail)...); } #define CCIN(...) \ char __VA_ARGS__; \ CIN(__VA_ARGS__) #define DCIN(...) \ double __VA_ARGS__; \ CIN(__VA_ARGS__) #define LCIN(...) \ long long __VA_ARGS__; \ CIN(__VA_ARGS__) #define SCIN(...) \ string __VA_ARGS__; \ CIN(__VA_ARGS__) #define Printv(v) \ { \ FOREACH(x, v) { cout << x << " "; } \ cout << "\n"; \ } template <typename T = string> inline void eputs(T s) { cout << s << "\n"; exit(0); } template <typename A, size_t N, typename T> void Fill(A (&array)[N], const T &val) { std::fill((T *)array, (T *)(array + N), val); } // generic lambdas template <typename F> #if defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard) [[nodiscard]] #elif defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 4) __attribute__((warn_unused_result)) #endif // defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard) static inline constexpr decltype(auto) fix(F &&f) noexcept { return [f = std::forward<F>(f)](auto &&... args) { return f(f, std::forward<decltype(args)>(args)...); }; } template <typename T> using PQG = priority_queue<T, vector<T>, greater<T>>; template <typename T> using PQ = priority_queue<T>; typedef long long ll; typedef vector<ll> VL; typedef vector<VL> VVL; typedef pair<ll, ll> PL; typedef vector<PL> VPL; typedef vector<bool> VB; typedef vector<double> VD; typedef vector<string> VS; const int INF = 1e9; const int MOD = 1e9 + 7; // const int MOD = 998244353; const ll LINF = 1e18; const double PI = atan(1.0) * 4.0; const ll dw[] = {1, 1, 0, -1, -1, -1, 0, 1}; const ll dh[] = {0, 1, 1, 1, 0, -1, -1, -1}; #define PI 3.141592653589793238 #define EPS (1e-10) #define equals(a, b) (fabs((a) - (b)) < EPS) #define PI 3.141592653589793238 // COUNTER CLOCKWISE static const int CCW_COUNTER_CLOCKWISE = 1; static const int CCW_CLOCKWISE = -1; static const int CCW_ONLINE_BACK = 2; static const int CCW_ONLINE_FRONT = -2; static const int CCW_ON_SEGMENT = 0; // Intercsect Circle & Circle static const int ICC_SEPERATE = 4; static const int ICC_CIRCUMSCRIBE = 3; static const int ICC_INTERSECT = 2; static const int ICC_INSCRIBE = 1; static const int ICC_CONTAIN = 0; // 1000000007 で割ったあまりを扱う構造体 template <int MOD> struct Fp { long long val; constexpr Fp(long long v = 0) noexcept : val(v % MOD) { if(val < 0) v += MOD; } constexpr int getmod() { return MOD; } constexpr Fp operator-() const noexcept { return val ? MOD - val : 0; } constexpr Fp operator+(const Fp &r) const noexcept { return Fp(*this) += r; } constexpr Fp operator-(const Fp &r) const noexcept { return Fp(*this) -= r; } constexpr Fp operator*(const Fp &r) const noexcept { return Fp(*this) *= r; } constexpr Fp operator/(const Fp &r) const noexcept { return Fp(*this) /= r; } constexpr Fp &operator+=(const Fp &r) noexcept { val += r.val; if(val >= MOD) val -= MOD; return *this; } constexpr Fp &operator-=(const Fp &r) noexcept { val -= r.val; if(val < 0) val += MOD; return *this; } constexpr Fp &operator*=(const Fp &r) noexcept { val = val * r.val % MOD; return *this; } constexpr Fp &operator/=(const Fp &r) noexcept { long long a = r.val, b = MOD, u = 1, v = 0; while(b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } val = val * u % MOD; if(val < 0) val += MOD; return *this; } constexpr bool operator==(const Fp &r) const noexcept { return this->val == r.val; } constexpr bool operator!=(const Fp &r) const noexcept { return this->val != r.val; } friend constexpr ostream &operator<<(ostream &os, const Fp<MOD> &x) noexcept { return os << x.val; } friend constexpr istream &operator>>(istream &is, Fp<MOD> &x) noexcept { return is >> x.val; } friend constexpr Fp<MOD> modpow(const Fp<MOD> &a, long long n) noexcept { if(n == 0) return 1; auto t = modpow(a, n / 2); t = t * t; if(n & 1) t = t * a; return t; } }; using mint = Fp<MOD>; mint dp[20005][105]; signed main() { LCIN(N, S, K); ll dif = (K + (N - 1) * K) * (N - 1) / 2; if(S < dif) eputs(0); dp[0][0] = 1; FOR(j, 1, N + 1) REP(i, S + 1) { if(i - j >= 0) { dp[i][j] += dp[i - j][j]; } if(j) { dp[i][j] += dp[i][j - 1]; } } cout << dp[S - dif][N] << "\n"; }