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답안 #973118

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
973118 2024-05-01T13:53:47 Z njoop Mobile (BOI12_mobile) C++17
0 / 100
 1000 ms 44228 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
#define pi pair<double, double>
using namespace std;

double x, y, L, l=0, r=1e9, mid, de, cov;
pi arr[1000010];
vector<pi> in;
int n;

bool solve(double rad) {
    in.clear();
    cov = 0;
    for(int i=1; i<=n; i++) {
        de = pow(rad, 2) - pow(abs(arr[i].second), 2);
        de = sqrt(de);
        if(de < 0) continue;
        in.push_back({arr[i].first-de, arr[i].first+de});
    }
    sort(in.begin(), in.end());
    for(auto i: in) {
        if(i.first > cov) return 0;
        cov = max(cov, i.second);
        if(cov >= L) return 1;
    }
    return 0;
}

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> L;
    for(int i=1; i<=n; i++) {
        cin >> arr[i].first >> arr[i].second;
    }
    while(l+0.001 < r) {
        mid = (l+r)/2;
        if(solve(mid)) {
            r = mid;
        } else {
            l = mid + 0.001;
        }
    }
    cout << fixed << setprecision(6) << l;
    return 0;
}

Subtask #1
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 #2
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 5 ms 600 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 10 ms 604 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 10 ms 604 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 604 KB Output is correct
2 Correct 5 ms 604 KB Output is correct
3 Correct 10 ms 604 KB Output is correct
4 Incorrect 12 ms 604 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #7
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 141 ms 4824 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 175 ms 4864 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #9
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 92 ms 4812 KB Output is correct
2 Correct 173 ms 4812 KB Output is correct
3 Correct 147 ms 4812 KB Output is correct
4 Incorrect 297 ms 4816 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #10
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 170 ms 4836 KB Output is correct
2 Correct 231 ms 4820 KB Output is correct
3 Correct 195 ms 5072 KB Output is correct
4 Incorrect 299 ms 4816 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #11
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 116 ms 4860 KB Output is correct
2 Correct 228 ms 4812 KB Output is correct
3 Correct 185 ms 4816 KB Output is correct
4 Incorrect 235 ms 4848 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #12
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 572 ms 18928 KB Output is correct
2 Execution timed out 1022 ms 19188 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #13
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1018 ms 18672 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #14
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 640 ms 29124 KB Output is correct
2 Execution timed out 1064 ms 29412 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #15
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1051 ms 28472 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #16
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 894 ms 30176 KB Output is correct
2 Execution timed out 1061 ms 40796 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #17
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1065 ms 31208 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #18
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 996 ms 32756 KB Output is correct
2 Execution timed out 1055 ms 44228 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #19
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1035 ms 33256 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #20
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1034 ms 33252 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #21
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 1045 ms 33216 KB Time limit exceeded
2 Halted 0 ms 0 KB -