結果
問題 | No.306 さいたま2008 |
ユーザー |
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提出日時 | 2015-11-27 23:11:52 |
言語 | C++11 (gcc 13.3.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 2,687 bytes |
コンパイル時間 | 731 ms |
コンパイル使用メモリ | 97,808 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2025-02-14 12:10:02 |
合計ジャッジ時間 | 1,680 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 26 |
ソースコード
#include <cstdio>#include <iostream>#include <vector>#include <map>#include <unordered_map>#include <set>#include <unordered_set>#include <string>#include <cstring>#include <sstream>#include <algorithm>#include <functional>#include <queue>#include <stack>#include <cmath>#include <iomanip>#include <list>#include <tuple>#include <bitset>#include <ciso646>using namespace std;typedef long long ll;typedef unsigned long long ull;typedef long double ld;typedef pair<ll, ll> P;typedef tuple<ll, ll, ll> T;typedef vector<ll> vec;inline bool cheak(ll x, ll y, ll xMax, ll yMax){ return x >= 0 && y >= 0 && xMax > x && yMax > y; }inline int toInt(string s) { int v; istringstream sin(s); sin >> v; return v; }template<class T> inline string toString(T x) { ostringstream sout; sout << x; return sout.str(); }template<class _RanIt> inline string toString(_RanIt _First, _RanIt _Last, string sep) { if (_First == _Last)return ""; ostringstream sout; sout <<*_First; for (_First = next(_First); _First != _Last; _First = next(_First)) { sout << sep << *_First; }return sout.str(); }template<class _RanIt> inline string toString(_RanIt _First, _RanIt _Last, string sep, string sep2) { if (_First == _Last)return ""; ostringstreamsout; sout << toString(all(*_First), sep); for (_First = next(_First); _First != _Last; _First = next(_First)) { sout << sep2 << toString(all(*_First), sep); }return sout.str(); }template<class T> inline T sqr(T x) { return x*x; }template<class T> inline T mypow(T x, ll n){ T res = 1; while (n > 0){ if (n & 1)res = res * x; x = x * x; n >>= 1; }return res; }inline int gcd(ll a, ll b){ return b ? gcd(b, a%b) : a; }inline int lcm(ll a, ll b){ return a / gcd(a, b) * b; }#define For(i,a,b) for(ll (i) = (a);i < (b);(i)++)#define rep(i,n) For(i,0,n)#define rFor(i,a,b) for(ll (i) = (a-1);i >= (b);(i)--)#define rrep(i,n) rFor(i,n,0)#define clr(a) memset((a), 0 ,sizeof(a))#define mclr(a) memset((a), -1 ,sizeof(a))#define all(a) (a).begin(),(a).end()#define sz(a) (sizeof(a))#define tostr(a) toString(a)const ll dx[8] = { 1, 0, -1, 0, 1, 1, -1, -1 }, dy[8] = { 0, -1, 0, 1, -1, 1, -1, 1 };const ll mod = 1e9 + 7;const ll INF = 1e13 + 9;#define int llsigned main(){ld xa, ya;ld xb, yb;cin >> xa >> ya >> xb >> yb;ld l = -INF, r = INF;while (1){ld y1 = l + (r - l) / 3.0;ld y2 = r - (r - l) / 3.0;ld l1 = sqrt(sqr(y1 - ya) + sqr(xa)) + sqrt(sqr(y1 - yb) + sqr(xb));ld l2 = sqrt(sqr(y2 - ya) + sqr(xa)) + sqrt(sqr(y2 - yb) + sqr(xb));if (l1 > l2){l = y1;}else{r = y2;}if (r - l < 1e-10)break;}cout << fixed << setprecision(30) << l << endl;return 0;}