結果
問題 | No.1269 I hate Fibonacci Number |
ユーザー | tsutaj |
提出日時 | 2020-10-23 23:42:48 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 179 ms / 3,000 ms |
コード長 | 5,382 bytes |
コンパイル時間 | 1,758 ms |
コンパイル使用メモリ | 125,268 KB |
実行使用メモリ | 62,336 KB |
最終ジャッジ日時 | 2024-07-21 13:45:00 |
合計ジャッジ時間 | 4,933 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 | 18 ms
62,336 KB |
testcase_01 | AC | 19 ms
62,280 KB |
testcase_02 | AC | 24 ms
62,208 KB |
testcase_03 | AC | 18 ms
62,216 KB |
testcase_04 | AC | 19 ms
62,208 KB |
testcase_05 | AC | 19 ms
62,336 KB |
testcase_06 | AC | 19 ms
62,168 KB |
testcase_07 | AC | 18 ms
62,336 KB |
testcase_08 | AC | 19 ms
62,292 KB |
testcase_09 | AC | 18 ms
62,080 KB |
testcase_10 | AC | 19 ms
62,336 KB |
testcase_11 | AC | 18 ms
62,208 KB |
testcase_12 | AC | 18 ms
62,308 KB |
testcase_13 | AC | 63 ms
62,176 KB |
testcase_14 | AC | 160 ms
62,208 KB |
testcase_15 | AC | 39 ms
62,248 KB |
testcase_16 | AC | 129 ms
62,208 KB |
testcase_17 | AC | 21 ms
62,184 KB |
testcase_18 | AC | 138 ms
62,260 KB |
testcase_19 | AC | 109 ms
62,284 KB |
testcase_20 | AC | 40 ms
62,208 KB |
testcase_21 | AC | 88 ms
62,336 KB |
testcase_22 | AC | 85 ms
62,208 KB |
testcase_23 | AC | 89 ms
62,336 KB |
testcase_24 | AC | 50 ms
62,192 KB |
testcase_25 | AC | 64 ms
62,156 KB |
testcase_26 | AC | 22 ms
62,208 KB |
testcase_27 | AC | 21 ms
62,228 KB |
testcase_28 | AC | 28 ms
62,208 KB |
testcase_29 | AC | 68 ms
62,208 KB |
testcase_30 | AC | 38 ms
62,336 KB |
testcase_31 | AC | 154 ms
62,232 KB |
testcase_32 | AC | 60 ms
62,228 KB |
testcase_33 | AC | 179 ms
62,336 KB |
testcase_34 | AC | 28 ms
62,336 KB |
testcase_35 | AC | 38 ms
62,168 KB |
testcase_36 | AC | 27 ms
62,264 KB |
testcase_37 | AC | 18 ms
62,160 KB |
testcase_38 | AC | 25 ms
62,208 KB |
ソースコード
// #define _GLIBCXX_DEBUG // for STL debug (optional) #include <iostream> #include <iomanip> #include <cstdio> #include <string> #include <cstring> #include <deque> #include <list> #include <queue> #include <stack> #include <vector> #include <utility> #include <algorithm> #include <map> #include <set> #include <complex> #include <cmath> #include <limits> #include <cfloat> #include <climits> #include <ctime> #include <cassert> #include <numeric> #include <fstream> #include <functional> #include <bitset> using namespace std; using ll = long long int; using int64 = long long int; template<typename T> void chmax(T &a, T b) {a = max(a, b);} template<typename T> void chmin(T &a, T b) {a = min(a, b);} template<typename T> void chadd(T &a, T b) {a = a + b;} int dx[] = {0, 0, 1, -1}; int dy[] = {1, -1, 0, 0}; const int INF = 1LL << 29; const ll LONGINF = 1LL << 60; const ll MOD = 1000000007LL; void test() { vector<ll> fib(2, 1); for(int i=2; ; i++) { ll nxt_fib = fib[i-1] + fib[i-2]; if(nxt_fib > (ll)1e18) break; else { fprintf(stderr, "fib[%d] = %lld\n", i, nxt_fib); fib.emplace_back(nxt_fib); } } } // ModInt begin using ll = long long; template<ll mod> struct ModInt { ll v; ll mod_pow(ll x, ll n) const { return (!n) ? 1 : (mod_pow((x*x)%mod,n/2) * ((n&1)?x:1)) % mod; } ModInt(ll a = 0) : v((a %= mod) < 0 ? a + mod : a) {} ModInt operator+ ( const ModInt& b ) const { return (v + b.v >= mod ? ModInt(v + b.v - mod) : ModInt(v + b.v)); } ModInt operator- () const { return ModInt(-v); } ModInt operator- ( const ModInt& b ) const { return (v - b.v < 0 ? ModInt(v - b.v + mod) : ModInt(v - b.v)); } ModInt operator* ( const ModInt& b ) const {return (v * b.v) % mod;} ModInt operator/ ( const ModInt& b ) const {return (v * mod_pow(b.v, mod-2)) % mod;} bool operator== ( const ModInt &b ) const {return v == b.v;} bool operator!= ( const ModInt &b ) const {return !(*this == b); } ModInt& operator+= ( const ModInt &b ) { v += b.v; if(v >= mod) v -= mod; return *this; } ModInt& operator-= ( const ModInt &b ) { v -= b.v; if(v < 0) v += mod; return *this; } ModInt& operator*= ( const ModInt &b ) { (v *= b.v) %= mod; return *this; } ModInt& operator/= ( const ModInt &b ) { (v *= mod_pow(b.v, mod-2)) %= mod; return *this; } ModInt pow(ll x) { return ModInt(mod_pow(v, x)); } // operator int() const { return int(v); } // operator long long int() const { return v; } }; template<ll mod> ModInt<mod> pow(ModInt<mod> n, ll k) { return ModInt<mod>(n.mod_pow(n.v, k)); } template<ll mod> ostream& operator<< (ostream& out, ModInt<mod> a) {return out << a.v;} template<ll mod> istream& operator>> (istream& in, ModInt<mod>& a) { in >> a.v; return in; } // ModInt end using mint = ModInt<MOD>; int nxt_state[750][10]; mint dp[5010][750][2]; int main() { // test(); ll N, L, R; cin >> N >> L >> R; vector<string> pfx; auto add_str = [&](string pat) { if(stoll(pat) < L) return; if(R < stoll(pat)) return; for(int i=0; i<=(int)pat.size(); i++) { pfx.emplace_back(pat.substr(0, i)); } }; add_str("1"); vector<ll> fib(2, 1); for(int i=2; ; i++) { ll nxt_fib = fib[i-1] + fib[i-2]; if(nxt_fib > (ll)1e18) break; else { add_str(to_string(nxt_fib)); fib.emplace_back(nxt_fib); } } pfx.emplace_back(""); sort(pfx.begin(), pfx.end()); pfx.erase(unique(pfx.begin(), pfx.end()), pfx.end()); int M = pfx.size(); vector<int> ng_state(M, false); for(int i=0; i<M; i++) { for(int k=1; k<(int)fib.size(); k++) { if(fib[k] < L or R < fib[k]) continue; string t = to_string(fib[k]); int lenA = t.length(); int lenB = pfx[i].length(); if(lenA <= lenB) { if(pfx[i].substr(lenB - lenA, lenA) == t) { ng_state[i] = true; } } } for(int c=0; c<10; c++) { string s = pfx[i] + (char)('0' + c); int k; while(true) { k = lower_bound(pfx.begin(), pfx.end(), s) - pfx.begin(); if(k < M and pfx[k] == s) break; s = s.substr(1); } nxt_state[i][c] = k; } } fill(dp[0][0], dp[N+1][0], mint(0)); dp[0][0][0] = mint(1); for(int i=0; i<N; i++) { for(int j=0; j<M; j++) { for(int f=0; f<2; f++) { for(int k=0; k<10; k++) { int nj = nxt_state[j][k]; if(ng_state[j] or ng_state[nj]) continue; if(f == 0 and k == 0) continue; int nf = f || (k > 0); dp[i+1][nj][nf] += dp[i][j][f]; } } } } mint ans(0); for(int i=0; i<M; i++) { for(int j=1; j<=N; j++) { if(ng_state[i]) continue; ans += dp[j][i][1]; } } cout << ans << endl; return 0; }