結果

問題 No.260 世界のなんとか3
ユーザー はまやんはまやんはまやんはまやん
提出日時 2017-06-18 17:22:30
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 131 ms / 2,000 ms
コード長 4,424 bytes
コンパイル時間 2,036 ms
コンパイル使用メモリ 175,340 KB
実行使用メモリ 8,768 KB
最終ジャッジ日時 2024-10-01 20:20:26
合計ジャッジ時間 6,036 ms
ジャッジサーバーID
(参考情報)
judge4 / 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 72 ms
8,576 KB
testcase_01 AC 71 ms
8,540 KB
testcase_02 AC 72 ms
8,576 KB
testcase_03 AC 119 ms
8,680 KB
testcase_04 AC 117 ms
8,676 KB
testcase_05 AC 79 ms
8,584 KB
testcase_06 AC 76 ms
8,620 KB
testcase_07 AC 103 ms
8,576 KB
testcase_08 AC 92 ms
8,616 KB
testcase_09 AC 83 ms
8,732 KB
testcase_10 AC 107 ms
8,588 KB
testcase_11 AC 104 ms
8,592 KB
testcase_12 AC 91 ms
8,580 KB
testcase_13 AC 76 ms
8,576 KB
testcase_14 AC 100 ms
8,596 KB
testcase_15 AC 79 ms
8,704 KB
testcase_16 AC 97 ms
8,576 KB
testcase_17 AC 91 ms
8,560 KB
testcase_18 AC 91 ms
8,448 KB
testcase_19 AC 97 ms
8,684 KB
testcase_20 AC 89 ms
8,600 KB
testcase_21 AC 85 ms
8,600 KB
testcase_22 AC 101 ms
8,576 KB
testcase_23 AC 73 ms
8,632 KB
testcase_24 AC 93 ms
8,768 KB
testcase_25 AC 100 ms
8,612 KB
testcase_26 AC 88 ms
8,484 KB
testcase_27 AC 70 ms
8,536 KB
testcase_28 AC 105 ms
8,580 KB
testcase_29 AC 131 ms
8,704 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>
#define rep(i,a,b) for(int i=a;i<b;i++)
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
//---------------------------------------------------------------------------------------------------
template<int MOD> struct ModInt {
    static const int Mod = MOD; unsigned x; ModInt() : x(0) { }
    ModInt(signed sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    ModInt(signed long long sig) { x = sig < 0 ? sig % MOD + MOD : sig % MOD; }
    int get() const { return (int)x; }
    ModInt &operator+=(ModInt that) { if ((x += that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator-=(ModInt that) { if ((x += MOD - that.x) >= MOD) x -= MOD; return *this; }
    ModInt &operator*=(ModInt that) { x = (unsigned long long)x * that.x % MOD; return *this; }
    ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
    ModInt operator+(ModInt that) const { return ModInt(*this) += that; }
    ModInt operator-(ModInt that) const { return ModInt(*this) -= that; }
    ModInt operator*(ModInt that) const { return ModInt(*this) *= that; }
    ModInt operator/(ModInt that) const { return ModInt(*this) /= that; }
    ModInt inverse() const { long long a = x, b = MOD, u = 1, v = 0;
        while (b) { long long t = a / b; a -= t * b; std::swap(a, b); u -= t * v; std::swap(u, v); }
        return ModInt(u); }
    bool operator==(ModInt that) const { return x == that.x; }
    bool operator!=(ModInt that) const { return x != that.x; }
    ModInt operator-() const { ModInt t; t.x = x == 0 ? 0 : Mod - x; return t; }
};
template<int MOD> ModInt<MOD> operator^(ModInt<MOD> a, unsigned long long k) {
    ModInt<MOD> r = 1; while (k) { if (k & 1) r *= a; a *= a; k >>= 1; } return r; }
template<typename T, int FAC_MAX> struct Comb { vector<T> fac, ifac;
    Comb() {fac.resize(FAC_MAX, 1); ifac.resize(FAC_MAX, 1);rep(i, 1, FAC_MAX) fac[i] = fac[i - 1] * i;
        rep(i, 1, FAC_MAX) ifac[i] = T(1) / fac[i];}
    T aPb(int a, int b) { if (b < 0 || a < b) return 0; return fac[a] * ifac[a - b]; }
    T aCb(int a, int b) { if (b < 0 || a < b) return 0; return fac[a] * ifac[a - b] * ifac[b]; }
    T nHk(int n, int k) { if (n == 0 && k == 0) return 1; if (n <= 0 || k < 0) return 0;
        return aCb(n + k - 1, k); }
};
typedef ModInt<1000000007> mint;
/*---------------------------------------------------------------------------------------------------
            ∧_∧  
      ∧_∧  (´<_` )  Welcome to My Coding Space!
     ( ´_ゝ`) /  ⌒i     
    /   \     | |     
    /   / ̄ ̄ ̄ ̄/  |  
  __(__ニつ/     _/ .| .|____  
     \/____/ (u ⊃  
---------------------------------------------------------------------------------------------------*/



Comb<mint, 201010> com;
//-----------------------------------------------------------------------------------
mint dp[10101][24][2][2];
mint count(string S) {
    int n = S.length();
    rep(i, 0, n + 1) rep(j, 0, 24) rep(k, 0, 2) rep(l, 0, 2) dp[i][j][k][l] = 0;

    dp[0][0][0][1] = 1;
    rep(i, 0, n) rep(j, 0, 24) rep(k, 0, 2) rep(l, 0, 2) {
        int cc = S[i] - '0';

        int ma = 10;
        if (l == 1) ma = cc + 1;
        rep(c, 0, ma) {
            int ii = i + 1;
            int jj = (j * 10 + c) % 24;
            int kk = k | (c == 3);
            int ll;

            if (l == 1 && c == cc) ll = 1;
            else ll = 0;

            dp[ii][jj][kk][ll] = dp[ii][jj][kk][ll] + dp[i][j][k][l];
        }
    }

    mint res = 0;
    rep(j, 0, 24) rep(l, 0, 2) if (j % 8 != 0) {
        res = res + dp[n][j][1][l];
    }
    rep(j, 0, 24) rep(l, 0, 2) if (j % 3 == 0 && j % 8 != 0) {
        res = res + dp[n][j][0][l];
    }
    return res;
}
//-----------------------------------------------------------------------------------
bool chk(string S) {
    int mo = 0;
    for (char c : S) mo = (mo * 10 + c - '0') % 24;

    bool aho = (mo % 3 == 0);
    for (char c : S) if (c == '3') aho = true;

    bool seishun = (mo % 8 == 0);

    return aho && !seishun;
}
//-----------------------------------------------------------------------------------
void _main() {
    string A, B; cin >> A >> B;

    mint ans = count(B) - count(A);
    if (chk(A)) ans = ans + 1;
    cout << ans.get() << endl;
}
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