結果
問題 | No.1514 Squared Matching |
ユーザー | Aoxiang Cui |
提出日時 | 2021-10-07 22:21:49 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 1,882 ms / 4,000 ms |
コード長 | 4,300 bytes |
コンパイル時間 | 1,252 ms |
コンパイル使用メモリ | 118,428 KB |
実行使用メモリ | 411,948 KB |
最終ジャッジ日時 | 2024-07-23 03:09:52 |
合計ジャッジ時間 | 33,564 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
5,248 KB |
testcase_01 | AC | 1,870 ms
411,692 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 | 25 ms
9,596 KB |
testcase_07 | AC | 340 ms
81,452 KB |
testcase_08 | AC | 1,812 ms
396,928 KB |
testcase_09 | AC | 1,577 ms
347,608 KB |
testcase_10 | AC | 1,711 ms
376,084 KB |
testcase_11 | AC | 1,772 ms
391,836 KB |
testcase_12 | AC | 1,831 ms
402,396 KB |
testcase_13 | AC | 1,853 ms
407,708 KB |
testcase_14 | AC | 1,843 ms
409,944 KB |
testcase_15 | AC | 1,875 ms
410,944 KB |
testcase_16 | AC | 1,864 ms
411,684 KB |
testcase_17 | AC | 1,881 ms
411,796 KB |
testcase_18 | AC | 1,869 ms
411,696 KB |
testcase_19 | AC | 1,880 ms
411,948 KB |
testcase_20 | AC | 1,872 ms
411,824 KB |
testcase_21 | AC | 1,882 ms
411,696 KB |
testcase_22 | AC | 348 ms
85,192 KB |
testcase_23 | AC | 732 ms
166,948 KB |
testcase_24 | AC | 1,103 ms
248,572 KB |
testcase_25 | AC | 1,490 ms
330,256 KB |
ソースコード
// #define LOCAL #define _USE_MATH_DEFINES #include <array> #include <cassert> #include <cstdio> #include <cstring> #include <iostream> #include <iomanip> #include <string> #include <sstream> #include <vector> #include <queue> #include <stack> #include <list> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <algorithm> #include <complex> #include <cmath> #include <numeric> #include <bitset> #include <functional> #include <random> #include <ctime> using namespace std; template <typename A, typename B> ostream& operator <<(ostream& out, const pair<A, B>& a) { out << "(" << a.first << "," << a.second << ")"; return out; } template <typename T, size_t N> ostream& operator <<(ostream& out, const array<T, N>& a) { out << "["; bool first = true; for (auto& v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "]"; return out; } template <typename T> ostream& operator <<(ostream& out, const vector<T>& a) { out << "["; bool first = true; for (auto v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "]"; return out; } template <typename T, class Cmp> ostream& operator <<(ostream& out, const set<T, Cmp>& a) { out << "{"; bool first = true; for (auto& v : a) { out << (first ? "" : ", "); out << v; first = 0;} out << "}"; return out; } template <typename U, typename T, class Cmp> ostream& operator <<(ostream& out, const map<U, T, Cmp>& a) { out << "{"; bool first = true; for (auto& p : a) { out << (first ? "" : ", "); out << p.first << ":" << p.second; first = 0;} out << "}"; return out; } #ifdef LOCAL #define trace(...) __f(#__VA_ARGS__, __VA_ARGS__) #else #define trace(...) 42 #endif template <typename Arg1> void __f(const char* name, Arg1&& arg1){ cerr << name << ": " << arg1 << endl; } template <typename Arg1, typename... Args> void __f(const char* names, Arg1&& arg1, Args&&... args){ const char* comma = strchr(names + 1, ','); cerr.write(names, comma - names) << ": " << arg1 << " |"; __f(comma + 1, args...); } template <class T> auto vect(const T& v, int n) { return vector<T>(n, v); } template <class T, class... D> auto vect(const T& v, int n, D... m) { return vector<decltype(vect(v, m...))>(n, vect(v, m...)); } typedef long long int64; typedef pair<int, int> ii; #define SZ(x) (int)((x).size()) template <typename T> static constexpr T inf = numeric_limits<T>::max() / 2; const int MOD = 1e9 + 7; // const int MOD = 998244353; mt19937 mrand(random_device{}()); int rnd(int x) { return mrand() % x; } // mt19937_64 mrand(random_device{}()); // int64 rnd(int64 x) { return mrand() % x; } template <class T> void out(const vector<T>& a) { for (int i = 0; i < SZ(a); ++i) cout << a[i] << " \n"[i + 1 == SZ(a)]; } template <class T> bool ckmin(T& a, const T& b) { return b < a ? a = b, 1 : 0; } template <class T> bool ckmax(T& a, const T& b) { return a < b ? a = b, 1 : 0; } template <class T> void dedup(vector<T>& v) { sort(v.begin(), v.end()); v.erase(unique(v.begin(), v.end()), v.end()); } void add(int& x, int y) { x += y; if (x >= MOD) x -= MOD; } struct fast_ios { fast_ios() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(10); }; } fast_ios_; const int N = 5e7 + 10; bitset<N> flag; int minp[N]; vector<int> prime; void prime_gen(int n = N) { // fill(flag, flag + n, false); for (int i = 2; i < n; ++i) { if (!flag[i]) { prime.push_back(i); minp[i] = i; } for (int j = 0, k; j < SZ(prime) && (k = prime[j] * i) < n; ++j) { flag[k] = true; if (i % prime[j]) { minp[k] = prime[j]; } else { minp[k] = minp[i]; break; } } } trace(SZ(prime)); } int main() { int n; cin >> n; prime_gen(n + 1); // vector<short> dp(n + 1); // for (int i = 1, ni, k = 1; i <= n; i = ni, ++k) { // ni = min(i + k * 2 + 1, n + 1); // for (int j = i; j < ni; ++j) dp[j] = k; // } vector<int> f(n + 1); f[1] = 1; int64 ret = (int64)sqrt(1.0 * n); for (int k = 2; k <= n; ++k) { // if (k % 1000000 == 0) trace(k); int p = minp[k]; f[k] = f[k / p]; if (f[k] % p == 0) { f[k] /= p; } else { f[k] *= p; } ret += (int64)sqrt((n / f[k]) * 1.0); } cout << ret << '\n'; return 0; }