Submission #1868861


Source Code Expand

#include <iostream>
#include <algorithm>
using namespace std;

int main()
{
	int N,R[1000];
	double ans = 0;

	cin >> N;

	for (int n = 0; n < N; n++) {
		cin >> R[n];
	}

	sort(R, R + N);
	reverse(R, R + N);

	for (int n = 0; n < N; n++) {
		if ((n + 1) % 2 == 0)ans -= R[n] * R[n] * 3.14159265358979;
		else ans += R[n] * R[n] * 3.14159265358979;
	}

	printf("%.10f\n", ans); 

	return 0;
}

Submission Info

Submission Time
Task B - N重丸
User karukan
Language C++14 (GCC 5.4.1)
Score 100
Code Size 418 Byte
Status AC
Exec Time 1 ms
Memory 256 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 100 / 100
Status
AC × 2
AC × 21
Set Name Test Cases
Sample example_0.txt, example_1.txt
All example_0.txt, example_1.txt, maxrand_0.txt, maxrand_1.txt, maxrand_2.txt, random_0.txt, random_1.txt, random_2.txt, random_3.txt, random_4.txt, random_5.txt, random_6.txt, random_7.txt, random_8.txt, random_9.txt, special_0.txt, special_1.txt, special_2.txt, special_3.txt, example_0.txt, example_1.txt
Case Name Status Exec Time Memory
example_0.txt AC 1 ms 256 KB
example_1.txt AC 1 ms 256 KB
maxrand_0.txt AC 1 ms 256 KB
maxrand_1.txt AC 1 ms 256 KB
maxrand_2.txt AC 1 ms 256 KB
random_0.txt AC 1 ms 256 KB
random_1.txt AC 1 ms 256 KB
random_2.txt AC 1 ms 256 KB
random_3.txt AC 1 ms 256 KB
random_4.txt AC 1 ms 256 KB
random_5.txt AC 1 ms 256 KB
random_6.txt AC 1 ms 256 KB
random_7.txt AC 1 ms 256 KB
random_8.txt AC 1 ms 256 KB
random_9.txt AC 1 ms 256 KB
special_0.txt AC 1 ms 256 KB
special_1.txt AC 1 ms 256 KB
special_2.txt AC 1 ms 256 KB
special_3.txt AC 1 ms 256 KB