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Submission #314007

# Submission time Handle Problem Language Result Execution time Memory
314007 2020-10-17T19:19:10 Z Parisa_Razzazi Balloons (CEOI11_bal) C++17
20 / 100
 891 ms 4988 KB 
#include <iostream>
#include <iomanip>
using namespace std;
#include <vector>
vector <pair<long long,long double>> v;
long double fis,r;
long long x;

int main()
{
	int n;
	cin >> n;
	for (int i = 0; i < n; i++){
		cin >> x;
		cin >> r;
		long double fis;
		long double m = r;
		while (v.size() && v[v.size()-1].second <= m){
			long double o = x - v[v.size()-1].first;
			fis = o * o / (4 * v[v.size()-1].second);
			m = min(m,fis);
			if (v[v.size()-1].second <= m){
				v.pop_back();
			}
		}
		if (v.empty()){
			printf("%.6Lf\n",r);
			v.push_back(make_pair(x,r));
			continue;
		}
		long double o = x - v[v.size()-1].first;
		fis = o * o / (4 * v[v.size()-1].second);
		m = min(m,fis);	
		printf("%.6Lf\n",m);
		v.push_back(make_pair(x,m));
	}
	return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 256 KB 10 numbers

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 256 KB 2nd numbers differ - expected: '252735385.4379999936', found: '1000000000.0000000000', error = '747264614.5620000362'

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 384 KB 6th numbers differ - expected: '213.0000000000', found: '238.0000000000', error = '25.0000000000'

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 384 KB 2000 numbers

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 86 ms 700 KB 2953rd numbers differ - expected: '1030.4380000000', found: '4752.0000000000', error = '3721.5620000000'

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 225 ms 1776 KB 14045th numbers differ - expected: '15399.0000000000', found: '15419.0000000000', error = '20.0000000000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 461 ms 2932 KB 7271st numbers differ - expected: '7938.8510000000', found: '7947.0000000000', error = '8.1490000000'

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 532 ms 3440 KB 4713th numbers differ - expected: '5060.4220000000', found: '5087.0000000000', error = '26.5780000000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 736 ms 4588 KB 1766th numbers differ - expected: '1874.0130000000', found: '1903.0000000000', error = '28.9870000000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 891 ms 4988 KB 2785th numbers differ - expected: '2962.3630000000', found: '2984.0000000000', error = '21.6370000000'
2 Halted 0 ms 0 KB -