結果
| 問題 |
No.94 圏外です。(EASY)
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2019-10-25 20:19:51 |
| 言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
CE
(最新)
AC
(最初)
|
| 実行時間 | - |
| コード長 | 1,990 bytes |
| コンパイル時間 | 689 ms |
| コンパイル使用メモリ | 88,100 KB |
| 最終ジャッジ日時 | 2024-11-14 21:47:26 |
| 合計ジャッジ時間 | 1,265 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
コンパイルメッセージ
main.cpp:17:39: error: '::numeric_limits' has not been declared
17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
| ^~~~~~~~~~~~~~
main.cpp:17:55: error: expected primary-expression before '>' token
17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
| ^
main.cpp:17:61: error: no matching function for call to 'max()'
17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
| ~~~~~^~
In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/string:50,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/locale_classes.h:40,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/ios_base.h:41,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ios:42,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/ostream:38,
from /home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/iostream:39,
from main.cpp:1:
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
254 | max(const _Tp& __a, const _Tp& __b)
| ^~~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:254:5: note: template argument deduction/substitution failed:
main.cpp:17:61: note: candidate expects 2 arguments, 0 provided
17 | template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
| ~~~~~^~
/home/linuxbrew/.linuxbrew/Cellar/gcc@12/12.3.0/include/c++/12/bits/stl_algobase.h:300:5: note: candidate: 'templat
ソースコード
#include <iostream>
#include <algorithm>
#include <iomanip>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <bitset>
#include <cmath>
static const int MOD = 1000000007;
using ll = long long;
using u32 = uint32_t;
using namespace std;
template<class T> constexpr T INF = ::numeric_limits<T>::max()/32*15+208;
class UnionFind {
int n;
vector<int> uni;
int forest_size;
public:
explicit UnionFind(int n) : n(n), uni(static_cast<u32>(n), -1), forest_size(n) {};
int root(int a){
if (uni[a] < 0) return a;
else return (uni[a] = root(uni[a]));
}
bool unite(int a, int b) {
a = root(a);
b = root(b);
if(a == b) return false;
if(uni[a] > uni[b]) swap(a, b);
uni[a] += uni[b];
uni[b] = a;
forest_size--;
return true;
}
int size(){ return forest_size; }
int size(int i){ return -uni[root(i)]; }
bool same(int a, int b) { return root(a) == root(b); }
};
int main() {
int n;
cin >> n;
if(n == 0){
puts("1");
return 0;
}
vector<int> xs(n), ys(n);
for (int i = 0; i < n; ++i) {
cin >> xs[i] >> ys[i];
}
UnionFind uf(n);
for (int i = 0; i < n; ++i) {
for (int j = i+1; j < n; ++j) {
int dx = xs[i]-xs[j], dy = ys[i]-ys[j];
if(dx*dx+dy*dy <= 100){
uf.unite(i, j);
}
}
}
vector<vector<int>> v(n);
for (int i = 0; i < n; ++i) {
v[uf.root(i)].emplace_back(i);
}
int ans = 0;
for (int i = 0; i < n; ++i) {
if(!v[i].empty()){
for (int j = 0; j < v[i].size(); ++j) {
for (int k = j+1; k < v[i].size(); ++k) {
int dx = xs[v[i][j]]-xs[v[i][k]], dy = ys[v[i][j]]-ys[v[i][k]];
ans = max(ans, dx*dx+dy*dy);
}
}
}
}
printf("%.10lf\n", sqrt(ans)+2);
return 0;
}