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Submission #531410

# Submission time Handle Problem Language Result Execution time Memory
531410 2022-02-28T15:54:18 Z Cantfindme Balloons (CEOI11_bal) C++17
10 / 100
 228 ms 8740 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
typedef pair<int,int> pi;
#define f first
#define s second
#define FAST ios_base::sync_with_stdio(0); cin.tie(0);
#define all(x) x.begin(),x.end()

typedef long double ld;

const int maxn = 200010;
const int INF = LLONG_MAX/2;
const int mod = 1e9+7;

int n;
ld x[maxn], r[maxn];

int32_t main() {
	FAST
	// #ifndef ONLINE_JUDGE
	// 	ifstream cin("input.txt");
	// #endif

	cin >> n;
	for (int i =1;i<=n;i++) cin >> x[i] >> r[i];

	stack <pi> s;
	for (int i =1;i<=n;i++) {
		while (!s.empty()) {
			auto [xp, rp] = s.top(); 
			r[i] = min(r[i], (x[i] - xp) * (x[i] - xp) / (4 * rp));
			if (r[i] >= rp) s.pop();
			else break;
		}
		s.push(pi(x[i], r[i]));
	}

	for (int i =1;i<=n;i++) cout << fixed << setprecision(6) << r[i] << "\n";

}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 8th numbers differ - expected: '8.7410000000', found: '9.0909090000', error = '0.3499090000'
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB 2 numbers

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 13th numbers differ - expected: '2.3960000000', found: '2.4500000000', error = '0.0540000000'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 332 KB 3rd numbers differ - expected: '121.0000000000', found: '121.0020490000', error = '0.0020490000'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 27 ms 1172 KB 71st numbers differ - expected: '136.0000000000', found: '136.0018250000', error = '0.0018250000'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 69 ms 2540 KB 254th numbers differ - expected: '15129.9990000000', found: '15130.0013390000', error = '0.0023390000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 129 ms 4684 KB 286th numbers differ - expected: '7633.9990000000', found: '7634.0008190000', error = '0.0018190000'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 137 ms 5428 KB 512th numbers differ - expected: '4502.9990000000', found: '4503.0045060000', error = '0.0055060000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 206 ms 7080 KB 165th numbers differ - expected: '1698.9980000000', found: '1699.0001470000', error = '0.0021470000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 228 ms 8740 KB 249th numbers differ - expected: '2683.0090000000', found: '2683.0112290000', error = '0.0022290000'
2 Halted 0 ms 0 KB -