結果

問題 No.1514 Squared Matching
ユーザー leaf_1415leaf_1415
提出日時 2021-05-21 21:51:26
言語 C++14
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 2,995 ms / 4,000 ms
コード長 5,642 bytes
コンパイル時間 944 ms
コンパイル使用メモリ 95,372 KB
実行使用メモリ 394,240 KB
最終ジャッジ日時 2024-04-18 15:10:18
合計ジャッジ時間 72,602 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
このコードへのチャレンジ
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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 2,284 ms
394,240 KB
testcase_01 AC 2,995 ms
394,112 KB
testcase_02 AC 2,310 ms
394,232 KB
testcase_03 AC 2,395 ms
394,108 KB
testcase_04 AC 2,306 ms
394,224 KB
testcase_05 AC 2,308 ms
394,112 KB
testcase_06 AC 2,332 ms
393,984 KB
testcase_07 AC 2,470 ms
394,060 KB
testcase_08 AC 2,743 ms
394,236 KB
testcase_09 AC 2,782 ms
394,232 KB
testcase_10 AC 2,738 ms
394,088 KB
testcase_11 AC 2,863 ms
394,064 KB
testcase_12 AC 2,797 ms
394,008 KB
testcase_13 AC 2,781 ms
394,064 KB
testcase_14 AC 2,810 ms
394,188 KB
testcase_15 AC 2,824 ms
394,104 KB
testcase_16 AC 2,800 ms
394,056 KB
testcase_17 AC 2,781 ms
394,068 KB
testcase_18 AC 2,910 ms
394,036 KB
testcase_19 AC 2,804 ms
394,112 KB
testcase_20 AC 2,748 ms
394,112 KB
testcase_21 AC 2,796 ms
393,984 KB
testcase_22 AC 2,371 ms
394,240 KB
testcase_23 AC 2,439 ms
394,112 KB
testcase_24 AC 2,561 ms
394,112 KB
testcase_25 AC 2,619 ms
394,112 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 # 

#include <iostream>
#include <cstdio>
#include <cmath>
#include <ctime>
#include <cstdlib>
#include <cassert>
#include <vector>
#include <list>
#include <stack>
#include <queue>
#include <deque>
#include <map>
#include <set>
#include <bitset>
#include <string>
#include <algorithm>
#include <utility>
#include <complex>
#define rep(x, s, t) for(llint (x) = (s); (x) <= (t); (x)++)
#define per(x, s, t) for(llint (x) = (s); (x) >= (t); (x)--)
#define reps(x, s) for(llint (x) = 0; (x) < (llint)(s).size(); (x)++)
#define chmin(x, y) (x) = min((x), (y))
#define chmax(x, y) (x) = max((x), (y))
#define sz(x) ((ll)(x).size())
#define ceil(x, y) (((x)+(y)-1) / (y))
#define all(x) (x).begin(),(x).end()
#define outl(...) dump_func(__VA_ARGS__)
#define inf 1e18

using namespace std;

typedef long long llint;
typedef long long ll;
typedef pair<ll, ll> P;

struct edge{
	ll to, cost;
	edge(){}
	edge(ll a, ll b){ to = a, cost = b;}
};
const ll dx[] = {1, 0, -1, 0}, dy[] = {0, -1, 0, 1};

const ll mod = 1000000007;
//const ll mod = 998244353;

struct mint{
	ll x = 0;
	mint(ll y = 0){x = y; if(x < 0 || x >= mod) x = (x%mod+mod)%mod;}
	mint(const mint &ope) {x = ope.x;}
	
	mint operator-(){return mint(-x);}
	mint operator+(const mint &ope){return mint(x) += ope;}
	mint operator-(const mint &ope){return mint(x) -= ope;}
	mint operator*(const mint &ope){return mint(x) *= ope;}
	mint operator/(const mint &ope){return mint(x) /= ope;}
	mint& operator+=(const mint &ope){
		x += ope.x;
		if(x >= mod) x -= mod;
		return *this;
	}
	mint& operator-=(const mint &ope){
		x += mod - ope.x;
		if(x >= mod) x -= mod;
		return *this;
	}
	mint& operator*=(const mint &ope){
		x *= ope.x, x %= mod;
		return *this;
	}
	mint& operator/=(const mint &ope){
		ll n = mod-2; mint mul = ope;
		while(n){
			if(n & 1) *this *= mul;
			mul *= mul;
			n >>= 1;
		}
		return *this;
	}
	mint inverse(){return mint(1) / *this;}
	bool operator ==(const mint &ope){return x == ope.x;}
	bool operator !=(const mint &ope){return x != ope.x;}
};
mint modpow(mint a, ll n){
	if(n == 0) return mint(1);
	if(n % 2) return a * modpow(a, n-1);
	else return modpow(a*a, n/2);
}
istream& operator >>(istream &is, mint &ope){
	ll t; is >> t, ope.x = t;
	return is;
}
ostream& operator <<(ostream &os, mint &ope){return os << ope.x;}
ostream& operator <<(ostream &os, const mint &ope){return os << ope.x;}

bool exceed(ll x, ll y, ll m){return x >= m / y + 1;}
void mark(){ cout << "*" << endl; }
void yes(){ cout << "YES" << endl; }
void no(){ cout << "NO" << endl; }
ll sgn(ll x){ if(x > 0) return 1; if(x < 0) return -1; return 0;}
ll gcd(ll a, ll b){if(b == 0) return a; return gcd(b, a%b);}
ll lcm(ll a, ll b){return a/gcd(a, b)*b;}
ll digitnum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret++; return ret;}
ll digitsum(ll x, ll b = 10){ll ret = 0; for(; x; x /= b) ret += x % b; return ret;}
string lltos(ll x){string ret; for(;x;x/=10) ret += x % 10 + '0'; reverse(ret.begin(), ret.end()); return ret;}
ll stoll(string &s){ll ret = 0; for(auto c : s) ret *= 10, ret += c - '0'; return ret;}
template<typename T>
void uniq(T &vec){ sort(vec.begin(), vec.end()); vec.erase(unique(vec.begin(), vec.end()), vec.end());}

template<typename T>
ostream& operator << (ostream& os, vector<T>& vec) {
	for(int i = 0; i < vec.size(); i++) os << vec[i] << (i + 1 == vec.size() ? "" : " ");
	return os;
}
template<typename T>
ostream& operator << (ostream& os, deque<T>& deq) {
	for(int i = 0; i < deq.size(); i++) os << deq[i] << (i + 1 == deq.size() ? "" : " ");
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, pair<T, U>& pair_var) {
	os << "(" << pair_var.first << ", " << pair_var.second << ")";
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, const pair<T, U>& pair_var) {
	os << "(" << pair_var.first << ", " << pair_var.second << ")";
	return os;
}
template<typename T, typename U>
ostream& operator << (ostream& os, map<T, U>& map_var) {
	for(typename map<T, U>::iterator itr = map_var.begin(); itr != map_var.end(); itr++) {
		os << "(" << itr->first << ", " << itr->second << ")";
		itr++; if(itr != map_var.end()) os << ","; itr--;
	}
	return os;
}
template<typename T>
ostream& operator << (ostream& os, set<T>& set_var) {
	for(typename set<T>::iterator itr = set_var.begin(); itr != set_var.end(); itr++) {
		os << *itr; ++itr; if(itr != set_var.end()) os << " "; itr--;
	}
	return os;
}
template<typename T>
ostream& operator << (ostream& os, multiset<T>& set_var) {
	for(typename multiset<T>::iterator itr = set_var.begin(); itr != set_var.end(); itr++) {
		os << *itr; ++itr; if(itr != set_var.end()) os << " "; itr--;
	}
	return os;
}
template<typename T>
void outa(T a[], ll s, ll t){
	for(ll i = s; i <= t; i++){ cout << a[i]; if(i < t) cout << " ";}
	cout << endl;
}
void dump_func() {cout << endl;}
template <class Head, class... Tail>
void dump_func(Head &&head, Tail &&... tail) {
	cout << head;
	if(sizeof...(Tail) > 0) cout << " ";
	dump_func(std::move(tail)...);
}

ll n;
int prime[50000005], par[50000005];

int main(void)
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	rep(i, 2, 50000000){
		if(prime[i]) continue;
		for(int j = i; j < 50000005; j+=i) prime[j] = i;
	}
	
	
	par[1] = 1;
	rep(i, 2, 50000000){
		int p = prime[i], q = i/p;
		if(prime[q] == p){
			if(par[q] % p == 0) par[i] = par[q] / p;
			else par[i] = par[q] * p;
		}
		else par[i] = par[q] * p;
	}
	
	rep(i, 1, 7500){
		ll s = i*i, t = min(50000000LL, (i+1)*(i+1)-1);
		rep(j, s, t) prime[j] = i;
		if(t == 50000000) break;
	}
	
	cin >> n;
	ll ans = 0;
	rep(i, 1, n) ans += prime[n/par[i]];
	
	outl(ans);
	
	
	return 0;
}
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