답안 #933208

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
933208	2024-02-25T09:10:58 Z	Lollospadalaser	Mobile (BOI12_mobile)	C++17	100 / 100	525 ms	35308 KB

mobile

#ifdef LOCAL
//#include "librerie locali/debugging.h"
#else
#pragma GCC optimize("Ofast,unroll-loops")
#endif
#include <bits/stdc++.h>
using namespace std;
#define rep(i, x) for (int i = 0; i < (x); i++)
#define reps(i,j,x) for(int i=(j);i<(x);i++)
#define repp(i,x) for(int i = 1; i <= (x); i++)
#define all(a) a.begin(),a.end()
#define allr(a) a.rbegin(),a.rend()
#define maxint numeric_limits<int>::max()
#define minint numeric_limits<int>::min()
#define maxll numeric_limits<ll>::max()
#define minll numeric_limits<ll>::min()
#define nl '\n'
#define f first 
#define s second
#define pb push_back
typedef long long ll;
typedef pair<int, int> pi;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<ll, ll> pll;
typedef vector<ll> vll;
typedef vector<vll> vvll;
typedef vector<pi> vpi;
typedef vector<pll> vpll;
typedef vector<vpi> vvpi;
typedef vector<vpll> vvpll;
typedef array<int, 3> i3;
typedef array<ll, 3> ll3;
typedef array<int, 4> i4;
typedef array<ll, 4> ll4;
typedef vector<i3> vi3;
typedef vector<ll3> vll3;
typedef vector<i4> vi4;
typedef vector<ll4> vll4;
typedef vector<bool> vb;
typedef vector<char> vc;
typedef vector<string> vs;


int nxt() {int x;cin >> x;return x;}
template <class T> void make_unique(T &arr) {sort(all(arr)); arr.resize(unique(all(arr)) - arr.begin());}
void print(){cout<<endl;} template <typename T, typename... Types> void print(T var1, Types... var2) {cout<<var1<<" ";print(var2...);}
template <typename T> T maxm(T var) {return var;} template <typename T, typename... Types> T maxm(T var1, Types... var2) {return max(var1,maxm(var2...));}
template <typename T> T minm(T var) {return var;} template <typename T, typename... Types> T minm(T var1, Types... var2) {return min(var1,minm(var2...));}
ll lpow(ll base, ll exp){ll result = 1;for (;;){if (exp & 1)result *= base;exp >>= 1;if (!exp)break;base *= base;}return result;}
int log2_floor(unsigned long long i) {return i ? __builtin_clzll(1) - __builtin_clzll(i) : 0;}
template <typename T> T maxv(vector<T> &var) {T maxi=numeric_limits<T>::min();for(auto x : var)maxi=max(maxi,x);return maxi;}
template <typename T> T minv(vector<T> &var) {T mini=numeric_limits<T>::max();for(auto x : var)mini=min(mini,x);return mini;}


void solve();

int main(){
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	#ifdef LOCAL
	freopen("balancing.in", "r", stdin);
	#endif
	//freopen("balancing.out", "w", stdout);	
	int t=1;
	//cin>>t;
	rep(i,t)solve();
}

#define mod 998244353
void solve(){
	ll n,l;
	cin>>n>>l;
	vpll arr(n);
	rep(i,n)cin>>arr[i].f>>arr[i].s;
	auto f = [&](double r){
		double d = 0;
		rep(i,n){
			double tem = sqrt(r*r-arr[i].s*arr[i].s);
			double a1= arr[i].f-tem,a2=arr[i].f+tem;
			if(a1<d)d=max(d,a2);
		}
		return d>=l;
	};
	double x = 1e9;
	for(double i = 1e9;i>1e-4;i/=2){
		while(f(x-i))x-=i;
	}
	cout<<fixed<<setprecision(5)<<x<<nl;
}

Subtask #1
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	348 KB	Output is correct
4	Correct	348 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Correct	348 KB	Output is correct
3	Correct	600 KB	Output is correct
4	Correct	348 KB	Output is correct

Subtask #3
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	344 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	3 ms	552 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	348 KB	Output is correct
2	Correct	2 ms	348 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	3 ms	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	348 KB	Output is correct
2	Correct	2 ms	532 KB	Output is correct
3	Correct	2 ms	348 KB	Output is correct
4	Correct	3 ms	604 KB	Output is correct
5	Correct	2 ms	348 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	39 ms	1628 KB	Output is correct
2	Correct	25 ms	2648 KB	Output is correct
3	Correct	20 ms	1884 KB	Output is correct
4	Correct	33 ms	2788 KB	Output is correct
5	Correct	20 ms	1628 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	31 ms	1628 KB	Output is correct
2	Correct	38 ms	1372 KB	Output is correct
3	Correct	33 ms	2648 KB	Output is correct
4	Correct	36 ms	2908 KB	Output is correct
5	Correct	36 ms	3216 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	27 ms	1628 KB	Output is correct
2	Correct	27 ms	1624 KB	Output is correct
3	Correct	31 ms	2652 KB	Output is correct
4	Correct	43 ms	3932 KB	Output is correct
5	Correct	37 ms	2652 KB	Output is correct

Subtask #10
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	28 ms	1884 KB	Output is correct
2	Correct	32 ms	3420 KB	Output is correct
3	Correct	35 ms	2920 KB	Output is correct
4	Correct	48 ms	3932 KB	Output is correct
5	Correct	42 ms	3160 KB	Output is correct

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	1884 KB	Output is correct
2	Correct	32 ms	3420 KB	Output is correct
3	Correct	34 ms	2904 KB	Output is correct
4	Correct	45 ms	4184 KB	Output is correct
5	Correct	43 ms	3164 KB	Output is correct

Subtask #12
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	139 ms	8284 KB	Output is correct
2	Correct	192 ms	15812 KB	Output is correct
3	Correct	169 ms	15300 KB	Output is correct
4	Correct	228 ms	17728 KB	Output is correct
5	Correct	210 ms	14924 KB	Output is correct

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	138 ms	8284 KB	Output is correct
2	Correct	277 ms	14784 KB	Output is correct
3	Correct	178 ms	14032 KB	Output is correct
4	Correct	220 ms	17492 KB	Output is correct
5	Correct	206 ms	15568 KB	Output is correct

Subtask #14
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	174 ms	9820 KB	Output is correct
2	Correct	188 ms	19036 KB	Output is correct
3	Correct	204 ms	18268 KB	Output is correct
4	Correct	260 ms	21600 KB	Output is correct
5	Correct	241 ms	17652 KB	Output is correct

Subtask #15
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	194 ms	9820 KB	Output is correct
2	Correct	339 ms	17632 KB	Output is correct
3	Correct	200 ms	16480 KB	Output is correct
4	Correct	256 ms	21344 KB	Output is correct
5	Correct	250 ms	18516 KB	Output is correct

Subtask #16
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	191 ms	11356 KB	Output is correct
2	Correct	222 ms	22012 KB	Output is correct
3	Correct	226 ms	21396 KB	Output is correct
4	Correct	308 ms	24832 KB	Output is correct
5	Correct	293 ms	20244 KB	Output is correct

Subtask #17
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	212 ms	11352 KB	Output is correct
2	Correct	380 ms	20480 KB	Output is correct
3	Correct	250 ms	19540 KB	Output is correct
4	Correct	311 ms	24844 KB	Output is correct
5	Correct	280 ms	21376 KB	Output is correct

Subtask #18
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	228 ms	12888 KB	Output is correct
2	Correct	256 ms	25168 KB	Output is correct
3	Correct	271 ms	24404 KB	Output is correct
4	Correct	385 ms	28444 KB	Output is correct
5	Correct	329 ms	23892 KB	Output is correct

Subtask #19
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	229 ms	12888 KB	Output is correct
2	Correct	421 ms	23320 KB	Output is correct
3	Correct	288 ms	22448 KB	Output is correct
4	Correct	347 ms	28336 KB	Output is correct
5	Correct	334 ms	24400 KB	Output is correct

Subtask #20
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	276 ms	15964 KB	Output is correct
2	Correct	336 ms	31836 KB	Output is correct
3	Correct	314 ms	30544 KB	Output is correct
4	Correct	428 ms	35100 KB	Output is correct
5	Correct	427 ms	29692 KB	Output is correct

Subtask #21
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	274 ms	15964 KB	Output is correct
2	Correct	525 ms	29268 KB	Output is correct
3	Correct	354 ms	28380 KB	Output is correct
4	Correct	450 ms	35308 KB	Output is correct
5	Correct	431 ms	30824 KB	Output is correct

답안 #933208

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