Submission #1026864

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1026864	2024-07-18T12:28:25 Z	peyman_sf	Mobile (BOI12_mobile)	C++17	0 / 100	1000 ms	10836 KB

mobile

#include <iostream>
#include <fstream>
#include <iomanip>
#include <stack>
#include <cmath>
#include <cstring>
#include <algorithm>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <deque>
#include <queue>


#define FastIO ios_base::sync_with_stdio(false); cin.tie(NULL);
#define fileTesting ifstream fileIn("input.txt"); cin.rdbuf(fileIn.rdbuf()); ofstream fileOut("output.txt"); cout.rdbuf(fileOut.rdbuf());
#define endl '\n'
#define print(x) for (auto i : x) cout << i << ' '; cout << endl
#define nloop(a, n) for (ll i = a; i < n; i++)
#define debug(x) cerr << #x << " is " << x << endl
#define all(x) (x).begin(), (x).end()
#define pb push_back
#define ff first
#define ss second

using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<ll> vll;
typedef vector<ld> vld;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;

const ll maxN = 1e9;
const ll mod = 1e9 + 7;

ll gcd(ll a, ll b) { if (b == 0) return a; return gcd(b, a % b);}
ll lcm(ll a, ll b) { return (a * b) / gcd(a, b); }

ld n, len;
vector<pii> points;

ld check(ld r) {
    ld cl = 0, cr = 0;
    for (auto &p : points)
    {
        ld d = sqrt(pow(r, 2) - pow(p.second, 2));
        if (p.first - d > cr)
            return 0;

        else {
            cl = min(cl, p.first - d);
            cr = max(cr, p.first + d);
        }
    }

    if (cl <= 0 && cr >= len)
        return 1;

    return 0;
}

void solution() {
    cin >> n >> len;

    for (ll i = 0; i < n; i++) {
        ll x, y;
        cin >> x >> y;
        points.push_back(make_pair(x, y));
    }

    ld l = 0, r = len + 1, m;
    for (ll i = 0; i < 200; i++) {
        m = (l + r) / 2;
        if (check(m))
            r = m;
        
        else
            l = m;
    }

    cout << fixed << setprecision(6) << r << endl;
}

int main() {
    FastIO
    ll t = 1;
    // cin >> t;
    while (t--) {
        solution();
    }
    return 0;
}

Subtask #1
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Incorrect	1 ms	348 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #2
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Incorrect	0 ms	348 KB	Output isn't correct
5	Halted	0 ms	0 KB	-

Subtask #3
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	12 ms	516 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #4
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	16 ms	568 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #5
0 / 4.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	12 ms	348 KB	Output is correct
2	Correct	6 ms	348 KB	Output is correct
3	Incorrect	7 ms	572 KB	Output isn't correct
4	Halted	0 ms	0 KB	-

Subtask #6
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	7 ms	572 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #7
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	225 ms	1496 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #8
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	293 ms	1496 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #9
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	116 ms	1500 KB	Output is correct
2	Incorrect	26 ms	1500 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #10
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Incorrect	25 ms	1500 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #11
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	108 ms	1496 KB	Output is correct
2	Incorrect	121 ms	1612 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #12
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	713 ms	4552 KB	Output is correct
2	Correct	578 ms	4820 KB	Output is correct
3	Correct	586 ms	6352 KB	Output is correct
4	Execution timed out	1059 ms	5948 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #13
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	581 ms	5056 KB	Output is correct
2	Execution timed out	1092 ms	6340 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Subtask #14
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	830 ms	9160 KB	Output is correct
2	Incorrect	690 ms	10280 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #15
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	685 ms	10688 KB	Output is correct
2	Execution timed out	1070 ms	8900 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	872 ms	9668 KB	Output is correct
2	Incorrect	195 ms	9160 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	212 ms	9920 KB	Output is correct
2	Execution timed out	1067 ms	8640 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1055 ms	10180 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	865 ms	10692 KB	Output is correct
2	Execution timed out	1062 ms	10176 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Execution timed out	1044 ms	9256 KB	Time limit exceeded
2	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	247 ms	9412 KB	Output is correct
2	Execution timed out	1077 ms	10836 KB	Time limit exceeded
3	Halted	0 ms	0 KB	-

Submission #1026864

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