結果

問題 No.1653 Squarefree
ユーザー tomo0608tomo0608
提出日時 2021-08-20 22:59:10
言語 C++17
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 692 ms / 2,000 ms
コード長 5,447 bytes
コンパイル時間 7,588 ms
コンパイル使用メモリ 279,980 KB
実行使用メモリ 68,984 KB
最終ジャッジ日時 2023-08-04 11:43:16
合計ジャッジ時間 25,655 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge13
このコードへのチャレンジ（β）

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 681 ms
68,596 KB
testcase_01 AC 12 ms
4,384 KB
testcase_02 AC 12 ms
4,384 KB
testcase_03 AC 12 ms
4,380 KB
testcase_04 AC 11 ms
4,384 KB
testcase_05 AC 12 ms
4,380 KB
testcase_06 AC 12 ms
4,384 KB
testcase_07 AC 12 ms
4,384 KB
testcase_08 AC 12 ms
4,384 KB
testcase_09 AC 12 ms
4,384 KB
testcase_10 AC 12 ms
4,380 KB
testcase_11 AC 628 ms
65,904 KB
testcase_12 AC 622 ms
65,976 KB
testcase_13 AC 651 ms
68,324 KB
testcase_14 AC 664 ms
68,064 KB
testcase_15 AC 676 ms
68,664 KB
testcase_16 AC 679 ms
68,396 KB
testcase_17 AC 691 ms
68,428 KB
testcase_18 AC 682 ms
68,984 KB
testcase_19 AC 668 ms
68,324 KB
testcase_20 AC 679 ms
68,876 KB
testcase_21 AC 685 ms
68,940 KB
testcase_22 AC 692 ms
68,876 KB
testcase_23 AC 672 ms
68,064 KB
testcase_24 AC 680 ms
68,388 KB
testcase_25 AC 667 ms
68,544 KB
testcase_26 AC 657 ms
68,148 KB
testcase_27 AC 653 ms
68,596 KB
testcase_28 AC 658 ms
68,084 KB
testcase_29 AC 679 ms
68,744 KB
testcase_30 AC 672 ms
68,084 KB
testcase_31 AC 690 ms
68,628 KB
testcase_32 AC 663 ms
68,584 KB
testcase_33 AC 663 ms
68,320 KB
testcase_34 AC 669 ms
68,612 KB
testcase_35 AC 661 ms
68,664 KB
testcase_36 AC 12 ms
4,384 KB
testcase_37 AC 12 ms
4,380 KB
testcase_38 AC 12 ms
4,380 KB
testcase_39 AC 12 ms
4,384 KB
testcase_40 AC 11 ms
4,384 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 # 

/**
*    author:  tomo0608
*    created: 20.08.2021 21:53:14
**/

#ifdef __LOCAL
#define _GLIBCXX_DEBUG
#endif
#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
#if __has_include(<atcoder/all>)
#include<atcoder/all>
using namespace atcoder;
#endif

typedef long long ll;
typedef long double ld;
template <class T> using V = vector<T>;
template <class T> using VV = V<V<T>>;
template <class T> using VVV = V<VV<T>>;
typedef pair<int,int> pii;
typedef pair<long long, long long> pll;

#define all(x) x.begin(),x.end()
#define SUM(v) accumulate(all(v), 0LL)
#define MIN(v) *min_element(all(v))
#define MAX(v) *max_element(all(v))
#define lb(c, x) distance((c).begin(), lower_bound(all(c), (x)))
#define ub(c, x) distance((c).begin(), upper_bound(all(c), (x)))
#define UNIQUE(x) sort(all(x)), x.erase(unique(all(x)), x.end())
template <typename T> void zip(vector<T> &x) {vector<T> y = x;UNIQUE(y);for(int i = 0; i < x.size(); ++i) { x[i] = lb(y, x[i]); }}
#define rep1(a)          for(long long i = 0; i < a; i++)
#define rep2(i, a)       for(long long i = 0; i < a; i++)
#define rep3(i, a, b)    for(long long i = a; i < b; i++)
#define rep4(i, a, b, c) for(long long i = a; i < b; i += c)
#define drep1(a)          for(long long i = a-1; i >= 0; i--)
#define drep2(i, a)       for(long long i = a-1; i >= 0; i--)
#define drep3(i, a, b)    for(long long i = a-1; i >= b; i--)
#define drep4(i, a, b, c) for(long long i = a-1; i >= b; i -= c)
#define overload4(a, b, c, d, e, ...) e
#define rep(...) overload4(__VA_ARGS__, rep4, rep3, rep2, rep1)(__VA_ARGS__)
#define drep(...) overload4(__VA_ARGS__, drep4, drep3, drep2, drep1)(__VA_ARGS__)
template<class... T>void input(T&... a){(cin >> ... >> a);};
#define INT(...) int __VA_ARGS__; input(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; input(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; input(__VA_ARGS__)
#define DBL(...) double __VA_ARGS__; input(__VA_ARGS__)
void print(){cout << '\n';}
template<class T, class... Ts>void print(const T& a, const Ts&... b){cout << a; (cout << ... << (cout << ' ', b)); cout << '\n';}
template<class T> using priority_queue_rev = priority_queue<T, vector<T>, greater<T> >;
template<class T, class U> inline bool chmax(T &a, const U &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T, class U> inline bool chmin(T &a, const U &b) { if (a>b) { a=b; return 1; } return 0; }
template<class T1, class T2> istream &operator>>(istream &is, pair<T1, T2> &p) { is >> p.first >> p.second; return is; }
template<class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &p) { os << '(' << p.first << ", " << p.second << ')'; return os; }
template<class T> istream &operator>>(istream &is, vector<T> &v) { for (auto &e : v) is >> e; return is; }
template<class T> ostream &operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; }
template<typename T> ostream& operator << (ostream& os, set<T>& set_var) {os << "{"; for (auto itr = set_var.begin(); itr != set_var.end(); itr++) {os << *itr;++itr;if(itr != set_var.end()) os << ", ";itr--;}os << "}";return os;}
template <typename T, typename U> ostream &operator<<(ostream &os, map<T, U> &map_var) {os << "{";for(auto itr = map_var.begin(); itr != map_var.end(); itr++) {os << *itr;itr++;if (itr != map_var.end()) os << ", ";itr--;}os << "}";return os;}
#ifdef __LOCAL
void debug_out(){ cerr << endl;}
template < class Head, class... Tail> void debug_out(Head H, Tail... T) { cerr << ' ' << H; debug_out(T...);}
#define debug(...) cerr << 'L' << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define dump(x) cerr << 'L' << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
template<class T> inline int count_between(vector<T> &a, T l, T r) { return lower_bound(all(a), r) - lower_bound(all(a), l); } // [l, r)
#define mp make_pair
#define bit(n, k) ((n >> k) & 1) /*nのk bit目*/
int topbit(signed t) { return t == 0 ? -1 : 31 - __builtin_clz(t); }
int topbit(ll t) { return t == 0 ? -1 : 63 - __builtin_clzll(t); }
int lowbit(signed a) { return a == 0 ? 32 : __builtin_ctz(a); }
int lowbit(ll a) { return a == 0 ? 64 : __builtin_ctzll(a); }
template <typename T>T mypow(T x, ll n){T ret = 1;while(n > 0){if(n & 1)(ret *= x);(x *= x);n >>= 1;}return ret;}
#define endl '\n'
int dx[8] = {1, 0, -1, 0, 1, 1, -1, -1};
int dy[8] = {0, 1, 0, -1, 1, -1, -1, 1};

const int MAX = 1000000;


void solve(){
    LL(l,r);
    V<bool> is_prime(MAX, true);
    is_prime[0] = is_prime[1] = false;
    VV<ll> prime_factors(r-l+1);
    V<bool> check(r-l+1, true);
    for(ll p = 2; (p*p*p*p <= r) || (p < MAX); ++p){
        if(!is_prime[p])continue;
        for(ll v = p*2; v < MAX; v += p){
            is_prime[v] = false;
        }
        for(ll v = (l+p-1)/p*p; v <= r; v += p){
            if((v/p)%p == 0)check[v-l] = false;
            else prime_factors[v-l].emplace_back(p);
        }
    }
    ll res = 0;
    rep(v,l,r+1){
        if(!check[v-l])continue;
        ll now = v;
        for(ll p: prime_factors[v-l]){
            now /= p;
        }
        ll sq = sqrt(now);
        if(now == 1 || sq * sq != now)res++;
    }
    print(res);
}

int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(false);
    cout << setprecision(20);
    int codeforces = 1;
    //cin >> codeforces;
    while(codeforces--){
        solve();
    }
    return 0;
}
0