結果
問題 | No.168 ものさし |
ユーザー |
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提出日時 | 2016-03-22 00:14:18 |
言語 | C++11(廃止可能性あり) (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 104 ms / 2,000 ms |
コード長 | 3,733 bytes |
コンパイル時間 | 1,404 ms |
コンパイル使用メモリ | 172,004 KB |
実行使用メモリ | 11,136 KB |
最終ジャッジ日時 | 2024-12-24 07:12:59 |
合計ジャッジ時間 | 2,671 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 4 |
other | AC * 19 |
ソースコード
#include <bits/stdc++.h>using namespace std;#define all(c) ((c).begin()), ((c).end())#define dump(c) cerr << "> " << #c << " = " << (c) << endl;#define iter(c) __typeof((c).begin())#define tr(i, c) for (iter(c) i = (c).begin(); i != (c).end(); i++)#define REP(i, a, b) for (int i = a; i < (int)(b); i++)#define rep(i, n) REP(i, 0, n)#define mp make_pair#define fst first#define snd second#define pb push_back#define debug( fmt, ... ) \fprintf( stderr, \fmt "\n", \##__VA_ARGS__ \)typedef unsigned int uint;typedef long long ll;typedef unsigned long long ull;typedef vector<int> vi;typedef vector<ll> vll;typedef vector<vll> vvll;typedef vector<vi> vvi;typedef vector<double> vd;typedef vector<vd> vvd;typedef vector<string> vs;typedef pair<int, int> pii;typedef pair<ll, ll> pll;const double EPS = 1e-10;double zero(double d) {return d < EPS ? 0.0 : d;}template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }#define UNIQUE(v) v.erase( unique(v.begin(), v.end()), v.end() );template<typename T1, typename T2>ostream &operator<<(ostream &os, const pair<T1, T2> &p) {return os << '(' << p.first << ',' << p.second << ')';}template<typename T>ostream &operator<<(ostream &os, const vector<T> &a) {os << '[';rep(i, a.size()) os << (i ? " " : "") << a[i];return os << ']';}string toString(int i) {stringstream ss;ss << i;return ss.str();}const int MOD = 1000000007;// a^kll fpow(ll a, ll k, int M) {ll res = 1ll;ll x = a;while (k != 0) {if ((k & 1) == 1)res = (res * x) % M;x = (x * x) % M;k >>= 1;}return res;}struct prepare {prepare() {cout.setf(ios::fixed, ios::floatfield);cout.precision(8);ios_base::sync_with_stdio(false);}} _prepare;class UnionFind {private:vi par;vi rank;int find(int x) {if(par[x] == x)return x;elsereturn par[x] = find(par[x]);}public:UnionFind(int n) {rep(i,n) {par.push_back(i);rank.push_back(0);}}void unite(int x, int y) {x = find(x);y = find(y);if(x==y) return;if(rank[x] < rank[y])par[x] = y;else {par[y] = x;if(rank[x] == rank[y])rank[x]++;}}bool same(int x, int y) {return find(x) == find(y);}};const ll INF = (1ll<<62);ll twice(ll i) {return i*i;}int main() {int N;cin >> N;vector<pll> points(N);rep(i, N)cin >> points[i].first >> points[i].second;vector<vll> d(N, vll(N, INF));rep(i, N) {REP(j, i+1, N) {d[i][j] = d[j][i] =twice(points[i].first - points[j].first)+ twice(points[i].second - points[j].second);}}ll lb = 0; // impossiblell ub = (ll)(1e9) * (ll)(1e9) * 2 + 2; // possiblewhile(ub - lb > 1) {ll med = (ub + lb) / 2;UnionFind uf(N);rep(i, N) {REP(j, i+1, N) {if(d[i][j] <= med)uf.unite(i, j);}}if(uf.same(0, N-1))ub = med;elselb = med;}// 10単位ll mono = (ll)(sqrt(ub));int add = (10 - (mono % 10)) % 10;mono += add;// 誤差補正if(mono * mono < ub)mono += 10;cout << mono << endl;return 0;}