結果
問題 | No.1580 I like Logarithm! |
ユーザー | rokahikou1 |
提出日時 | 2023-06-02 00:44:16 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 4 ms / 2,000 ms |
コード長 | 9,408 bytes |
コンパイル時間 | 1,865 ms |
コンパイル使用メモリ | 169,152 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-06-08 21:49:08 |
合計ジャッジ時間 | 3,331 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 4 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 3 ms
5,376 KB |
testcase_12 | AC | 4 ms
5,376 KB |
testcase_13 | AC | 3 ms
5,376 KB |
testcase_14 | AC | 4 ms
5,376 KB |
testcase_15 | AC | 4 ms
5,376 KB |
testcase_16 | AC | 2 ms
5,376 KB |
testcase_17 | AC | 2 ms
5,376 KB |
testcase_18 | AC | 2 ms
5,376 KB |
testcase_19 | AC | 2 ms
5,376 KB |
testcase_20 | AC | 2 ms
5,376 KB |
testcase_21 | AC | 2 ms
5,376 KB |
testcase_22 | AC | 2 ms
5,376 KB |
testcase_23 | AC | 2 ms
5,376 KB |
testcase_24 | AC | 2 ms
5,376 KB |
testcase_25 | AC | 2 ms
5,376 KB |
testcase_26 | AC | 4 ms
5,376 KB |
testcase_27 | AC | 3 ms
5,376 KB |
testcase_28 | AC | 4 ms
5,376 KB |
testcase_29 | AC | 4 ms
5,376 KB |
testcase_30 | AC | 4 ms
5,376 KB |
testcase_31 | AC | 4 ms
5,376 KB |
testcase_32 | AC | 4 ms
5,376 KB |
testcase_33 | AC | 3 ms
5,376 KB |
testcase_34 | AC | 4 ms
5,376 KB |
testcase_35 | AC | 3 ms
5,376 KB |
testcase_36 | AC | 4 ms
5,376 KB |
testcase_37 | AC | 4 ms
5,376 KB |
testcase_38 | AC | 4 ms
5,376 KB |
testcase_39 | AC | 4 ms
5,376 KB |
testcase_40 | AC | 4 ms
5,376 KB |
testcase_41 | AC | 3 ms
5,376 KB |
testcase_42 | AC | 3 ms
5,376 KB |
testcase_43 | AC | 3 ms
5,376 KB |
testcase_44 | AC | 4 ms
5,376 KB |
ソースコード
#pragma region Macros #include <bits/stdc++.h> #define rep(i, n) for(int(i) = 0; (i) < (n); (i)++) #define rrep(i, n) for(int(i) = (n)-1; (i) >= 0; (i)--) #define FOR(i, m, n) for(int(i) = (m); (i) < (n); (i)++) #define ROF(i, m, n) for(int(i) = (n)-1; (i) >= (m); (i)--) #define ALL(v) (v).begin(), (v).end() #define LLA(v) (v).rbegin(), (v).rend() #define SZ(v) (int)(v).size() #define INT(...) \ int __VA_ARGS__; \ read(__VA_ARGS__) #define LL(...) \ ll __VA_ARGS__; \ read(__VA_ARGS__) #define DOUBLE(...) \ double __VA_ARGS__; \ read(__VA_ARGS__) #define CHAR(...) \ char __VA_ARGS__; \ read(__VA_ARGS__) #define STRING(...) \ string __VA_ARGS__; \ read(__VA_ARGS__) #define VEC(type, name, size) \ vector<type> name(size); \ read(name) #define VEC2(type, name, height, width) \ vector<vector<type>> name(height, vector<type>(width)); \ read(name) #define DVEC(type, name1, name2, size) \ vector<type> name1(size), name2(size); \ read(name1, name2) #define TVEC(type, name1, name2, name3, size) \ vector<type> name1(size), name2(size), name3(size); \ read(name1, name2, name3) using namespace std; using ll = long long; using pii = pair<int, int>; using pll = pair<ll, ll>; const int INF = 1 << 30; const ll LINF = 1LL << 60; const int MOD = 1e9 + 7; const char newl = '\n'; const int dx[] = {1, 0, -1, 0}; const int dy[] = {0, 1, 0, -1}; template <class T> inline bool between(T x, T l, T r) { return l <= x && x < r; } template <class T> inline vector<T> make_vec(size_t a, T val) { return vector<T>(a, val); } template <class... Ts> inline auto make_vec(size_t a, Ts... ts) { return vector<decltype(make_vec(ts...))>(a, make_vec(ts...)); } void read() {} template <class T> inline void read(T &a) { cin >> a; } template <class T, class S> inline void read(pair<T, S> &p) { read(p.first), read(p.second); } template <class T> inline void read(vector<T> &v) { for(auto &&a : v) read(a); } template <class T, class U> inline void read(vector<T> &a, vector<U> &b) { for(int i = 0; i < a.size(); i++) { read(a[i]); read(b[i]); } } template <class T, class U, class V> inline void read(vector<T> &a, vector<U> &b, vector<V> &c) { for(int i = 0; i < a.size(); i++) { read(a[i]); read(b[i]); read(c[i]); } } template <class Head, class... Tail> inline void read(Head &head, Tail &...tail) { read(head), read(tail...); } template <class T> void _write(const T &a) { cout << a; } template <class T, class U> void _write(const std::pair<T, U> &a) { cout << a.first << ' ' << a.second; } template <class T> void write(const T &a) { _write(a); cout << newl; } template <class T> void write(const vector<T> &a) { for(int i = 0; i < a.size(); i++) { _write(a[i]); cout << (i + 1 == a.size() ? newl : ' '); } } template <class Head, class... Tail> void write(const Head &head, const Tail &...tail) { _write(head); cout << ' '; write(tail...); } template <class T> void writel(const T &a) { cout << a << '\n'; } template <class T> void writel(const vector<T> &a) { for(int i = 0; i < a.size(); i++) { _write(a[i]); cout << newl; } } template <class Head, class... Tail> void writel(const Head &head, const Tail &...tail) { _write(head); cout << newl; write(tail...); } template <class T> void _debug(const T &a) { cerr << a; } template <class T, class U> void _debug(const std::pair<T, U> &a) { cerr << a.first << ' ' << a.second; } template <class T> void debug(const T &a) { _debug(a); cerr << newl; } template <class T> void debug(const vector<T> &a) { for(int i = 0; i < a.size(); i++) { _debug(a[i]); cerr << (i + 1 == a.size() ? newl : ' '); } } template <class Head, class... Tail> void debug(const Head &head, const Tail &...tail) { _debug(head); cerr << ' '; debug(tail...); } template <class T> void debugl(const T &a) { cerr << a << '\n'; } template <class T> void debugl(const vector<T> &a) { for(int i = 0; i < a.size(); i++) { _debug(a[i]); cerr << newl; } } template <class Head, class... Tail> void debugl(const Head &head, const Tail &...tail) { _debug(head); cerr << newl; debug(tail...); } template <class T> auto sum(const vector<T> &a) { return accumulate(ALL(a), T(0)); } template <class T> auto min(const vector<T> &a) { return *min_element(ALL(a)); } template <class T> auto max(const vector<T> &a) { return *max_element(ALL(a)); } template <class T, class U> void msort(vector<T> &a, vector<U> &b) { assert(a.size() == b.size()); vector<pair<T, U>> ab(a.size()); for(int i = 0; i < a.size(); i++) ab[i] = {a[i], b[i]}; sort(ALL(ab)); for(int i = 0; i < a.size(); i++) { a[i] = ab[i].first; b[i] = ab[i].second; } } template <class T, class U, class V> void msort(vector<T> &a, vector<U> &b, vector<V> &c) { assert(a.size() == b.size() && b.size() == c.size()); vector<tuple<T, U, V>> abc(a.size()); for(int i = 0; i < a.size(); i++) abc[i] = {a[i], b[i], c[i]}; sort(ALL(abc)); for(int i = 0; i < a.size(); i++) { a[i] = get<0>(abc[i]); b[i] = get<1>(abc[i]); c[i] = get<2>(abc[i]); } } template <class T, class U> inline bool chmax(T &a, U b) { if(a < b) { a = b; return 1; } return 0; } template <class T, class U> inline bool chmin(T &a, U b) { if(a > b) { a = b; return 1; } return 0; } int digit(ll a) { ll ret = 0; while(a && ++ret) a /= 10; return ret; } int digit_sum(ll a) { ll ret = 0; while(a) { ret += a % 10; a /= 10; } return ret; } ll llpow(ll a, ll n) { ll ret = 1; rep(i, n) ret *= a; return ret; } inline int bsf(int v) { return __builtin_ctz(v); } // 最下位の1が下から何番目か inline int bsf(ll v) { return __builtin_ctzll(v); } inline int bsr(int v) { return 31 - __builtin_clz(v); } // 最上位の1が下から何番目か inline int bsr(ll v) { return 63 - __builtin_clzll(v); } inline int lsb(int v) { return v & -v; } // 最下位の1だけ残す inline ll lsb(ll v) { return v & -v; } inline int msb(int v) { return 1 << bsr(v); } // 最上位の1だけ残す inline ll msb(ll v) { return 1LL << bsr(v); } struct IO { IO() { ios::sync_with_stdio(false); cin.tie(nullptr); cout << fixed << setprecision(10); } } io; #pragma endregion /* ModInt */ template <uint_fast64_t MOD> class ModInt { using u64 = uint_fast64_t; public: u64 val; ModInt(const u64 x = 0) : val((x + MOD) % MOD) {} constexpr u64 &value() { return val; } static const u64 get_mod() { return MOD; } constexpr ModInt operator-() { return val ? MOD - val : 0; } constexpr ModInt operator+(const ModInt &rhs) const { return ModInt(*this) += rhs; } constexpr ModInt operator-(const ModInt &rhs) const { return ModInt(*this) -= rhs; } constexpr ModInt operator*(const ModInt &rhs) const { return ModInt(*this) *= rhs; } constexpr ModInt operator/(const ModInt &rhs) const { return ModInt(*this) /= rhs; } constexpr ModInt &operator+=(const ModInt &rhs) { val += rhs.val; if(val >= MOD) { val -= MOD; } return *this; } constexpr ModInt &operator-=(const ModInt &rhs) { if(val < rhs.val) { val += MOD; } val -= rhs.val; return *this; } constexpr ModInt &operator*=(const ModInt &rhs) { val = val * rhs.val % MOD; return *this; } constexpr ModInt &operator/=(const ModInt &rhs) { *this *= rhs.inv(); return *this; } constexpr bool operator==(const ModInt &rhs) const { return this->val == rhs.val; } constexpr bool operator!=(const ModInt &rhs) const { return this->val != rhs.val; } friend constexpr ostream &operator<<(ostream &os, const ModInt<MOD> &x) { return os << x.val; } friend constexpr istream &operator>>(istream &is, ModInt<MOD> &x) { return is >> x.val; } constexpr ModInt inv() const { return ModInt(*this).pow(MOD - 2); } constexpr ModInt pow(long long e) const { u64 x = 1, p = val; while(e > 0) { if(e % 2 == 0) { p = (p * p) % MOD; e /= 2; } else { x = (x * p) % MOD; e--; } } return ModInt(x); } }; using mint = ModInt<1000000007UL>; // using mint = ModInt<998244353UL>; void solve() { INT(a); STRING(s); reverse(ALL(s)); int n = s.size(); mint res = 0; mint pa = 1; mint b = a - 1; mint c = 0; for(int i = 0; i < n; i++) { if(i > 0) { if(i == n - 1) { res += mint(a).pow(i) * int(s[i] - '0' - 1) * i; res += (c + 1) * i; } else { b *= a; res += b * i; } } c += pa * int(s[i] - '0'); pa *= a; } write(res); } int main() { int t = 1; // cin >> t; while(t--) { solve(); } }