結果
問題 | No.1653 Squarefree |
ユーザー | T101010101 |
提出日時 | 2023-01-08 18:04:45 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,991 bytes |
コンパイル時間 | 4,457 ms |
コンパイル使用メモリ | 265,628 KB |
実行使用メモリ | 25,732 KB |
最終ジャッジ日時 | 2024-12-15 21:32:41 |
合計ジャッジ時間 | 85,179 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | TLE | - |
testcase_01 | AC | 8 ms
13,640 KB |
testcase_02 | AC | 8 ms
18,780 KB |
testcase_03 | AC | 135 ms
13,636 KB |
testcase_04 | AC | 8 ms
13,768 KB |
testcase_05 | AC | 7 ms
13,640 KB |
testcase_06 | AC | 8 ms
18,688 KB |
testcase_07 | AC | 8 ms
13,760 KB |
testcase_08 | AC | 7 ms
13,636 KB |
testcase_09 | AC | 8 ms
13,644 KB |
testcase_10 | AC | 8 ms
18,556 KB |
testcase_11 | TLE | - |
testcase_12 | TLE | - |
testcase_13 | TLE | - |
testcase_14 | TLE | - |
testcase_15 | TLE | - |
testcase_16 | TLE | - |
testcase_17 | TLE | - |
testcase_18 | TLE | - |
testcase_19 | TLE | - |
testcase_20 | TLE | - |
testcase_21 | TLE | - |
testcase_22 | TLE | - |
testcase_23 | TLE | - |
testcase_24 | TLE | - |
testcase_25 | TLE | - |
testcase_26 | TLE | - |
testcase_27 | TLE | - |
testcase_28 | TLE | - |
testcase_29 | TLE | - |
testcase_30 | TLE | - |
testcase_31 | TLE | - |
testcase_32 | TLE | - |
testcase_33 | TLE | - |
testcase_34 | TLE | - |
testcase_35 | TLE | - |
testcase_36 | AC | 9 ms
6,816 KB |
testcase_37 | AC | 8 ms
6,820 KB |
testcase_38 | AC | 9 ms
6,816 KB |
testcase_39 | AC | 9 ms
6,820 KB |
testcase_40 | AC | 9 ms
25,464 KB |
ソースコード
#pragma region Macros #include <bits/extc++.h> using namespace std; using namespace __gnu_pbds; // using namespace __gnu_cxx; // #include <boost/multiprecision/cpp_int.hpp> // namespace mp = boost::multiprecision; // using Bint = mp::cpp_int; #define TO_STRING(var) # var #define pb emplace_back #define int ll #define endl '\n' using ll = long long; using ld = long double; const ld PI = acos(-1); const ld EPS = 1e-10; const int INF = 1 << 30; const ll INFL = 1LL << 61; // const int MOD = 998244353; const int MOD = 1000000007; __attribute__((constructor)) void constructor() { ios::sync_with_stdio(false); cin.tie(nullptr); // ifstream in("input.txt"); // cin.rdbuf(in.rdbuf()); cout << fixed << setprecision(15); } template<int mod> class modint{ public: int val = 0; modint(int x = 0) { while (x < 0) x += mod; val = x % mod; } modint(const modint &r) { val = r.val; } modint operator -() { return modint(-val); } modint operator +(const modint &r) { return modint(*this) += r; } modint operator -(const modint &r) { return modint(*this) -= r; } modint operator *(const modint &r) { return modint(*this) *= r; } modint operator /(const modint &r) { return modint(*this) /= r; } modint &operator +=(const modint &r) { val += r.val; if (val >= mod) val -= mod; return *this; } modint &operator -=(const modint &r) { if (val < r.val) val += mod; val -= r.val; return *this; } modint &operator *=(const modint &r) { val = val * r.val % mod; return *this; } modint &operator /=(const modint &r) { int a = r.val, b = mod, u = 1, v = 0; while (b) { int 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; } bool operator ==(const modint& r) { return this -> val == r.val; } bool operator <(const modint& r) { return this -> val < r.val; } bool operator !=(const modint& r) { return this -> val != r.val; } }; using mint = modint<MOD>; istream &operator >>(istream &is, mint& x) { int t; is >> t; x = t; return (is); } ostream &operator <<(ostream &os, const mint& x) { return os << x.val; } mint modpow(const mint &a, int n) { if (n == 0) return 1; mint t = modpow(a, n / 2); t = t * t; if (n & 1) t = t * a; return t; } int modpow(int x, int n, int mod) { int ret = 1; while (n > 0) { if (n % 2 == 1) ret = ret * x % mod; x = x * x % mod; n /= 2; } return ret; } int ceil(int x, int y) { return (x > 0 ? (x + y - 1) / y : x / y); } #pragma endregion vector<bool> erat(int n) { vector<bool> prime(n + 1, true); prime[0] = false; if (n >= 1) prime[1] = false; for (int i = 2; i * i <= n; i++) { if (prime[i]) { for (int j = i + i; j <= n; j += i) { prime[j] = false; } } } return prime; } signed main() { int L, R; cin >> L >> R; vector<bool> E = erat(1e6); vector<int> P; for (int i = 2; i < 1e6; i++) { if (E[i]) P.pb(i); } int sz = P.size(); vector<int> A(R - L + 1); for (int i = 0; i < R - L + 1; i++) { A[i] = L + i; } for (int i = 0; i < R - L + 1; i++) { for (int j = 0; j < sz; j++) { if (P[j] > A[i]) break; int cnt = 0; while (A[i] % P[j] == 0 && cnt < 2) { A[i] /= P[j]; cnt++; } if (cnt >= 2) A[i] = -1; // 平方数で割り切れる } } int ans = 0; for (int i = 0; i < R - L + 1; i++) { if (A[i] == -1) continue; if (A[i] == 1) ans++; else { int p = round(sqrt(A[i])); if (p * p == A[i]) continue; ans++; } } cout << ans << endl; }