답안 #1093734

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1093734	2024-09-27T10:52:21 Z	michified	Mobile (BOI12_mobile)	C++17	50 / 100	1000 ms	51284 KB

mobile

#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define lid id * 2 + 1
#define rid id * 2 + 2
using namespace std;

const ll mod = 1e9 + 7;

struct coord_t {
    ld x, y;
};

bool all(ld rad, ld l, vector<coord_t>& towers) {
    ld cur = 0, radsq = rad * rad;
    for (auto& t : towers) {
        if (t.y > rad) continue;
        ld horiz = sqrt(radsq - (t.y * t.y));
        if (t.x - horiz > cur) continue;
        cur = max(cur, t.x + horiz);
    }
    return cur >= l;
}

int main() {
    // ifstream cin("valleys.in");
    // ofstream cout("valleys.out");
    
    ld n, L, i, tx, ty;
    cin >> n >> L;
    vector<coord_t> towers(n);
    for (i = 0; i < n; i++) {
        cin >> tx >> ty;
        towers[i] = {tx, ty};
    }
    ld l = 0, r = 2e9, tol = 0.000001;
    while (l < r - tol) {
        ld mid = (l + r) / 2;
        if (not all(mid, L, towers)) l = mid;
        else r = mid - tol;
    }
    cout << setprecision(10) << l;
    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	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	348 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	3 ms	348 KB	Output is correct
2	Correct	3 ms	352 KB	Output is correct
3	Correct	2 ms	344 KB	Output is correct
4	Correct	3 ms	348 KB	Output is correct

Subtask #4
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	604 KB	Output is correct
2	Correct	4 ms	680 KB	Output is correct
3	Correct	4 ms	604 KB	Output is correct
4	Correct	6 ms	604 KB	Output is correct

Subtask #5
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	604 KB	Output is correct
2	Correct	4 ms	604 KB	Output is correct
3	Correct	4 ms	604 KB	Output is correct
4	Correct	6 ms	604 KB	Output is correct

Subtask #6
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	4 ms	600 KB	Output is correct
2	Correct	6 ms	608 KB	Output is correct
3	Correct	4 ms	604 KB	Output is correct
4	Correct	8 ms	692 KB	Output is correct
5	Correct	5 ms	652 KB	Output is correct

Subtask #7
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	62 ms	3420 KB	Output is correct
2	Correct	65 ms	3676 KB	Output is correct
3	Correct	41 ms	2652 KB	Output is correct
4	Correct	105 ms	3848 KB	Output is correct
5	Correct	46 ms	2396 KB	Output is correct

Subtask #8
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	78 ms	3420 KB	Output is correct
2	Correct	86 ms	3448 KB	Output is correct
3	Correct	104 ms	3996 KB	Output is correct
4	Correct	135 ms	4056 KB	Output is correct
5	Correct	123 ms	4436 KB	Output is correct

Subtask #9
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	64 ms	3860 KB	Output is correct
2	Correct	72 ms	4164 KB	Output is correct
3	Correct	62 ms	3932 KB	Output is correct
4	Correct	164 ms	5456 KB	Output is correct
5	Correct	96 ms	3964 KB	Output is correct

Subtask #10
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	93 ms	4944 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #11
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	92 ms	4948 KB	Output is correct
2	Correct	93 ms	4824 KB	Output is correct
3	Correct	79 ms	4436 KB	Output is correct
4	Correct	154 ms	5464 KB	Output is correct
5	Correct	125 ms	4692 KB	Output is correct

Subtask #12
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	381 ms	20308 KB	Output is correct
2	Incorrect	508 ms	23744 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #13
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	460 ms	24140 KB	Output is correct
2	Correct	480 ms	22688 KB	Output is correct
3	Correct	396 ms	21704 KB	Output is correct
4	Correct	770 ms	25172 KB	Output is correct
5	Correct	681 ms	23236 KB	Output is correct

Subtask #14
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	458 ms	24240 KB	Output is correct
2	Incorrect	541 ms	28244 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #15
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Incorrect	523 ms	29008 KB	Output isn't correct
2	Halted	0 ms	0 KB	-

Subtask #16
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	546 ms	28244 KB	Output is correct
2	Incorrect	620 ms	33112 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #17
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	633 ms	33876 KB	Output is correct
2	Correct	634 ms	31568 KB	Output is correct
3	Correct	538 ms	30548 KB	Output is correct
4	Execution timed out	1077 ms	35668 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #18
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	606 ms	32376 KB	Output is correct
2	Incorrect	777 ms	37716 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #19
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	688 ms	38524 KB	Output is correct
2	Correct	691 ms	35920 KB	Output is correct
3	Correct	668 ms	34900 KB	Output is correct
4	Execution timed out	1025 ms	40784 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

Subtask #20
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	770 ms	40276 KB	Output is correct
2	Incorrect	945 ms	47188 KB	Output isn't correct
3	Halted	0 ms	0 KB	-

Subtask #21
0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	874 ms	48208 KB	Output is correct
2	Correct	897 ms	44780 KB	Output is correct
3	Correct	835 ms	43856 KB	Output is correct
4	Execution timed out	1077 ms	51284 KB	Time limit exceeded
5	Halted	0 ms	0 KB	-

답안 #1093734

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