結果
問題 | No.737 PopCount |
ユーザー | ゆにぽけ |
提出日時 | 2024-03-06 06:12:44 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 1,000 ms |
コード長 | 3,849 bytes |
コンパイル時間 | 1,242 ms |
コンパイル使用メモリ | 136,644 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-09-29 18:13:17 |
合計ジャッジ時間 | 2,003 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,816 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 1 ms
6,820 KB |
testcase_05 | AC | 2 ms
6,816 KB |
testcase_06 | AC | 2 ms
6,816 KB |
testcase_07 | AC | 1 ms
6,816 KB |
testcase_08 | AC | 2 ms
6,820 KB |
testcase_09 | AC | 2 ms
6,816 KB |
testcase_10 | AC | 1 ms
6,820 KB |
testcase_11 | AC | 2 ms
6,816 KB |
testcase_12 | AC | 2 ms
6,820 KB |
testcase_13 | AC | 1 ms
6,816 KB |
testcase_14 | AC | 1 ms
6,816 KB |
testcase_15 | AC | 1 ms
6,816 KB |
testcase_16 | AC | 2 ms
6,820 KB |
testcase_17 | AC | 2 ms
6,816 KB |
ソースコード
#include <iostream> #include <vector> #include <algorithm> #include <array> #include <iterator> #include <string> #include <cctype> #include <cstring> #include <cstdlib> #include <cassert> #include <cmath> #include <ctime> #include <iomanip> #include <numeric> #include <stack> #include <queue> #include <map> #include <unordered_map> #include <set> #include <unordered_set> #include <bitset> #include <random> #include <utility> #include <functional> using namespace std; template<int m> struct modint { private: unsigned int value; static constexpr int mod() {return m;} public: constexpr modint(const long long x = 0) noexcept { long long y = x; if(y < 0 || y >= mod()) { y %= mod(); if(y < 0) y += mod(); } value = (unsigned int)y; } static constexpr int get_mod() noexcept {return m;} static constexpr int primitive_root() noexcept { assert(m == 998244353); return 3; } constexpr unsigned int val() noexcept {return value;} constexpr modint &operator+=(const modint &other) noexcept { value += other.value; if(value >= mod()) value -= mod(); return *this; } constexpr modint &operator-=(const modint &other) noexcept { unsigned int x = value; if(x < other.value) x += mod(); x -= other.value; value = x; return *this; } constexpr modint &operator*=(const modint &other) noexcept { unsigned long long x = value; x *= other.value; value = (unsigned int) (x % mod()); return *this; } constexpr modint &operator/=(const modint &other) noexcept { return *this *= other.inverse(); } constexpr modint inverse() const noexcept { assert(value); long long a = value,b = mod(),x = 1,y = 0; while(b) { long long q = a/b; a -= q*b; swap(a,b); x -= q*y; swap(x,y); } return modint(x); } constexpr modint power(long long N) const noexcept { assert(N >= 0); modint p = *this,ret = 1; while(N) { if(N & 1) ret *= p; p *= p; N >>= 1; } return ret; } constexpr modint operator+() {return *this;} constexpr modint operator-() {return modint() - *this;} constexpr modint &operator++(int) noexcept {return *this += 1;} constexpr modint &operator--(int) noexcept {return *this -= 1;} friend modint operator+(const modint& lhs, const modint& rhs) {return modint(lhs) += rhs;} friend modint operator-(const modint& lhs, const modint& rhs) {return modint(lhs) -= rhs;} friend modint operator*(const modint& lhs, const modint& rhs) {return modint(lhs) *= rhs;} friend modint operator/(const modint& lhs, const modint& rhs) {return modint(lhs) /= rhs;} friend ostream &operator<<(ostream &os,const modint &x) {return os << x.value;} }; /* using mint = modint<998244353>; */ using mint = modint<1000000007>; void Main() { long long N; cin >> N; string S; while(N) { S += char('0' + (N & 1)); N >>= 1; } reverse(S.begin(),S.end()); N = (int)S.size(); vector<vector<mint>> dp(2,vector<mint>(N + 1)); vector<vector<mint>> way(2,vector<mint>(N + 1)); mint t = mint(2).power(N); const mint inv2 = mint(2).inverse(); for(int i = 0;i < N;i++) { t *= inv2; int D = S[i] - '0'; vector<vector<mint>> n_dp(2,vector<mint>(N + 1)); vector<vector<mint>> n_way(2,vector<mint>(N + 1)); for(int j = 0;j < 2;j++) { for(int k = 0;k <= i;k++) { for(int d = 0;d <= (j ? 1 : D);d++) { int nj = j || d < D; int nk = k + d; n_dp[nj][nk] += dp[j][k] + d * t * way[j][k]; n_way[nj][nk] += way[j][k]; } } } for(int d = 1;d <= (i > 0 ? 1 : D);d++) { int j = i > 0 || d < D; int k = 1; n_dp[j][k] += t; n_way[j][k]++; } swap(dp,n_dp); swap(way,n_way); } mint ans = 0; for(int k = 1;k <= N;k++) { ans += k * (dp[0][k] + dp[1][k]); } cout << ans << "\n"; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int tt = 1; /* cin >> tt; */ while(tt--) Main(); }