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Submission #738117

# Submission time Handle Problem Language Result Execution time Memory
738117 2023-05-08T07:44:21 Z Toxtaq Balloons (CEOI11_bal) C++17
0 / 100
 2000 ms 4964 KB 
#include<iostream>
#include<vector>
#include<algorithm>
#include<numeric>
#include<complex>
#include<map>
#include<iomanip>
using namespace std;
#define eps 1e-6
int n;
vector<pair<int, double>>balloons;
vector<double>res;
double dist(pair<int, double>a,pair<int,double>b){
	return sqrt((a.first-b.first)*(a.first-b.first)+(a.second-b.second)*(a.second-b.second));
}
bool check(double mid, int indx){
	for(int i = indx-1;i>=0;--i){
		if(dist({balloons[i].first, res[i]},{balloons[indx].first, mid})-(res[i]+mid)< eps)return true;
	}
	return false;
}
int main(){
	cin >> n;
	balloons.resize(n);
	for(int i = 0;i<n;++i){
		cin >> balloons[i].first >> balloons[i].second;
	}
	res.resize(n);
	res[0]=balloons[0].second;
	for(int i = 1;i<n;++i){
		double l = 1, r = balloons[i].second;
		while(r-l>eps){
			double mid = (l+r)/2;
			if(check(mid, i)){
				r = mid;
			}
			else l = mid;
		}
		res[i]=r;
	}
	for(double i : res)cout << fixed << setprecision(6)<< i << '\n';
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 10th numbers differ - expected: '0.5150000000', found: '1.0000010000', error = '0.4850010000'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB 2nd numbers differ - expected: '252735385.4379999936', found: '1.0000010000', error = '252735384.4379989803'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 4 ms 212 KB 2nd numbers differ - expected: '0.0010000000', found: '1.0000010000', error = '0.9990010000'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 149 ms 332 KB 113th numbers differ - expected: '0.2500000000', found: '1.0000000000', error = '0.7500000000'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2047 ms 724 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2059 ms 1492 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2047 ms 2632 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2061 ms 2996 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2062 ms 3860 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2052 ms 4964 KB Time limit exceeded
2 Halted 0 ms 0 KB -