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Submission #768194

# Submission time Handle Problem Language Result Execution time Memory
768194 2023-06-27T16:47:12 Z vjudge1 Balloons (CEOI11_bal) C++17
20 / 100
 386 ms 9252 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define double long double
const int N=2e5, pi=3.14;
int n;
struct dt{
    double x,r;
};
double Ri(dt b, dt c){
    return (b.x-c.x)*(b.x-c.x)/(4*c.r);
}
double area(dt b){
    return b.r*b.r*3.14;
}
dt a[N+10];
deque<dt> q;
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n;
    for (int i=1;i<=n;i++)
        cin>>a[i].x>>a[i].r;
    for (int i=1;i<=n;i++){
        double R = a[i].r;
        while(!q.empty()){
            R = min(R,Ri(a[i],q.front()));
            if (R<q.front().r)
                break;
            else
                q.pop_front();
        }
        q.push_back({a[i].x,R});
        if (R != a[i].r) R-=0.000000001;
        cout <<fixed<<setprecision(9)<<R<<endl;

    }

}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB 10 numbers

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB 2 numbers

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 340 KB 13th numbers differ - expected: '2.3960000000', found: '6.2546948350', error = '3.8586948350'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 340 KB 6th numbers differ - expected: '116.0020000000', found: '117.0000000000', error = '0.9980000000'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 39 ms 1220 KB 11th numbers differ - expected: '201.0010000000', found: '202.0000000000', error = '0.9990000000'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 98 ms 2748 KB 5th numbers differ - expected: '15395.0000000000', found: '15396.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 198 ms 4908 KB 14th numbers differ - expected: '7919.0000000000', found: '7920.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 226 ms 5696 KB 5th numbers differ - expected: '5054.0000000000', found: '5055.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 312 ms 7528 KB 15th numbers differ - expected: '1860.0000000000', found: '1861.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 386 ms 9252 KB 11th numbers differ - expected: '2951.0000000000', found: '2952.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -