結果
| 問題 | No.781 円周上の格子点の数え上げ | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2019-01-15 19:52:13 | 
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 298 ms / 2,000 ms | 
| コード長 | 3,743 bytes | 
| コンパイル時間 | 3,136 ms | 
| コンパイル使用メモリ | 174,316 KB | 
| 実行使用メモリ | 81,712 KB | 
| 最終ジャッジ日時 | 2024-06-25 23:48:20 | 
| 合計ジャッジ時間 | 5,623 ms | 
| ジャッジサーバーID (参考情報) | judge3 / judge1 | 
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| ファイルパターン | 結果 | 
|---|---|
| other | AC * 21 | 
ソースコード
#define NOMINMAX
#define TEST_MODE true
#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES
#include "bits/stdc++.h"
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
#define rep2(i, a, b) for (int i = (a); i < (int)(b); ++i)
#define rrep(i, n) for (int i = (n)-1; i >= 0; --i)
#define rrep2(i, a, b) for (int i = (a)-1; i >= (int)b; --i)
#define range(i, a, b, c) for (int i = a;             \
                                   c > 0 ? i < b : i > b; \
                                   i += c)
#define chmax(a, b) (a = (a) < (b) ? (b) : (a))
#define chmin(a, b) (a = (a) > (b) ? (b) : (a))
using ll = long long;
using ull = unsigned long long;
using ld = long double;
#define all(a) begin(a), end(a)
#define ifnot(a) if (not(a))
#define int long long
#ifdef LOCAL_ENV
#if TEST_MODE == true
const bool test = true;
#define dump(x) cerr << #x << " : " << (x) << " "
#define dumpl(x) dump(x) << endl
#else
const bool test = false;
#define dump(x) 
#define dumpl(x)
#endif
#else
const bool test = false;
#define dump(x) 
#define dumpl(x)
#endif
int dx[] = { 1, 0, -1, 0 };
int dy[] = { 0, 1, 0, -1 };
const int INF = (int)1 << 60;
const int undefined = INF;
const ll INFL = (ll)1 << 60;
ll mod_n = (int)1e9 + 7;
const double eps = 1e-10;
typedef long double Real;
// return -1, 0, 1
int sgn(const Real &r) { return (r > eps) - (r < -eps); }
int sgn(const Real &a, const Real &b) { return sgn(a - b); }
//.....................
const int MAX = (int)2e5 + 5;
vector<string> split(const string &str, char sep)
{
	vector<string> v;
	stringstream ss(str);
	string buffer;
	while (getline(ss, buffer, sep))
	{
		v.push_back(buffer);
	}
	return v;
}
string join(const vector<string>& v, const string delim = 0) {
	string s;
	if (!v.empty()) {
		s += v[0];
		for (decltype(v.size()) i = 1, c = v.size(); i < c; ++i) {
			if (delim != "") s += delim;
			s += v[i];
		}
	}
	return s;
}
string operator * (const string& s, const int& n) {
	string res = "";
	rep(i, n) res += s;
	return res;
}
template <class InputIterator>
int sum(InputIterator begin, InputIterator end)
{
	return accumulate(begin, end, 0ll);
}
template<typename T>
T gcd(T a, T b)
{
	T c;
	while (a != 0) {
		c = a; a = b%a;  b = c;
	}
	return b;
}
template<typename T>
T bit_count(T N) {
	T cnt = 0;
	while (N) {
		if (N & 1) cnt++;
		N >>= 1;
	}
	return cnt;
}
template<typename T>
void print_vec(ostream& ostream, vector<T> a) {
	rep(i, a.size() - 1) ostream << a[i] << " ";
	ostream << a.back() << endl;
}
ll pow_n(ll x, ll n) {
	ll res = 1;
	while (n > 0) {
		if (n & 1) res = res * x;
		x = x * x;
		n >>= 1;
	}
	return res;
}
template<class T, class U>
T mod_pow(T x, U n) {
	T res = 1;
	while (n > 0) {
		if (n & 1) res = res * x;
		x = x * x;
		x %= mod_n;
		n >>= 1;
		res %= mod_n;
	}
	return res;
}
template<class T>
T mod_rev(T a) {
	T res = 1;
	return mod_pow(a, mod_n - 2);
}
int H, W;
bool grid_ng(int y, int x) {
	return y < 0 || y >= H || x < 0 || x >= W;
}
struct Point {
	int x, y;
	bool operator < (const Point& r) const {
		if (y != r.y) return y < r.y;
		return x < r.x;
	}
};
int X, Y;
int cnt[10000001];
class Solver {
public:
	void solve() {
		cin >> X >> Y;
		int r = (int)sqrt(Y) + 1;
		rep2(y, -r, r + 1) rep2(x, -r, r + 1) {
			//if (Y - y * y + x * x > 100000) continue;
			if (y * y + x * x <= Y) {
				cnt[y * y + x * x] += 1;
			}
		}
		int res = 0;
		rep2(i, X, Y+1) {
			chmax(res, cnt[i]);
		}
		cout << res << endl;
	}
};
signed main()
{
	srand((unsigned int)time(NULL));
	cout << fixed << setprecision(20);
	auto ptr = new Solver();
	ptr->solve();
	delete ptr;
	//while (true) {
	//	if (cin.eof() == true) break;
	//	auto ptr = new Solver();
	//	ptr->solve();
	//	delete ptr;
	//}
	return 0;
}
            
            
            
        