結果

問題 No.707 書道
ユーザー naimonon77naimonon77
提出日時 2018-11-18 17:49:05
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 7 ms / 2,000 ms
コード長 4,086 bytes
コンパイル時間 2,336 ms
コンパイル使用メモリ 208,256 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-06-06 20:50:23
合計ジャッジ時間 2,973 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 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 3 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 2 ms
5,376 KB
testcase_05 AC 5 ms
5,376 KB
testcase_06 AC 6 ms
5,376 KB
testcase_07 AC 7 ms
5,376 KB
testcase_08 AC 2 ms
5,376 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 #

#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 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 char* 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;
}

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;
}

class Solver {
public:
	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;
		}
	};

	string P[55];

	double f(int xi, int yi) {
		double res = 0;
		rep2(x, 1, W + 1) {
			rep2(y, 1, H + 1) {
				// dump(y); dumpl(x);
				if (P[y][x] == '1') {
					if (xi == 0 && yi == 3) {
						dump(x); dump(y); dumpl(hypot(xi - x, yi - y));
					}
					res += hypot(xi - x, yi - y);
				}
			}
		}
		return res;
	}

	void solve() {
		cin >> H >> W;
		P[0] = "";
		rep2(i, 1, H + 1) cin >> P[i];
		
		rep(i, H + 1) P[i] = " " + P[i];
		//dumpl(P[4][2]);
		//rep(i, H + 1) {
		//	cerr << P[i] << endl;
		//}

		int start_x[] = { 1, 1,     0, W + 1 };
		int start_y[] = { 0, H + 1, 1, 1     };
		// Point start[] = { (1, 0), (1, H + 1), (0, 1), (W + 1, 1)};
		double res = INF;
		rep(i, 4) {
			int xi = start_x[i]; 
			int yi = start_y[i];
			while (true) {
				if (i < 2  && not (xi <= W)) break;
				if (i >= 2 && not (yi <= H)) break;
				// dump(xi); dumpl(yi);

				// cerr << "!" << endl;
				double sum = f(xi, yi);
				dump(xi); dump(yi); dumpl(sum);


				if (i <  2) xi += 1;
				if (i >= 2) yi += 1;
				chmin(res, sum);
			}
		}
		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;
}
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