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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#679336#8027. Sky GardenLJY_ljyAC ✓147ms3952kbC++111.2kb2024-10-26 17:24:092024-10-26 17:24:10

Judging History

This is the latest submission verdict.

  • [2024-10-26 17:24:10]
  • Judged
  • Verdict: AC
  • Time: 147ms
  • Memory: 3952kb
Show
  • [2024-10-26 17:24:09]
  • Submitted

answer

#include <iostream>
#include <cstdio>
#include <cstring>
#include <algorithm>
#include <cmath>
#include <cstdlib>
using namespace std;

const double pi = atan(1) * 4;
double ans;

int main() {
	long long n, m;
	scanf("%lld %lld", &n, &m);
	for (long long i = 1; i < m; i++) {
		if (pi * i / (m * 1.00000) < 2) {
			for (long long u = 1; u <= n; u++) {
				for (long long v = 1; v <= n; v++) {
					long long minn = min(u, v), maxx = max(u, v);
					ans += maxx - minn + pi * i / (m * 1.00000) * minn;
				}
			}
		} else {
			for (long long u = 1; u <= n; u++) {
				for (long long v = 1; v <= n; v++)
					ans += u + v;
			}
		}
	}
	for (long long i = 1; i <= n; i++) {
		for (long long j = i + 1; j <= n; j++)
			ans += j - i;
	}
	ans *= (2 * m);
	double cnt = 0;
	for (long long i = 1; i <= n; i++) {
		for (long long j = 1; j <= n; j++)
			cnt += i + j;
	}
	ans += cnt * m; // 处理圆心角为 π时的情形。 
	if (m >= 2) { // m >= 2 时，多条直线在原点处相交产生一个交点。 
		for (long long i = 1; i <= 2 * m; i++) {
			for (long long j = 1; j <= n; j++) {
				ans += j;
			}
		}	
	}
	printf("%.10lf\n", ans);
	return 0;
}
源文件, 语言: C++11

这程序好像有点Bug，我给组数据试试？

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3952kb

input:

1 2

output:

14.2831853072

result:

ok found '14.2831853', expected '14.2831853', error '0.0000000'

Test #2:

score: 0
Accepted
time: 0ms
memory: 3952kb

input:

1 1

output:

2.0000000000

result:

ok found '2.0000000', expected '2.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 1ms
memory: 3868kb

input:

500 1

output:

166916500.0000000000

result:

ok found '166916500.0000000', expected '166916500.0000000', error '0.0000000'

Test #4:

score: 0
Accepted
time: 1ms
memory: 3796kb

input:

500 2

output:

763585309.5613231659

result:

ok found '763585309.5613232', expected '763585309.5613225', error '0.0000000'

Test #5:

score: 0
Accepted
time: 147ms
memory: 3856kb

input:

500 499

output:

49125277129687.6953125000

result:

ok found '49125277129687.6953125', expected '49125277129819.2734375', error '0.0000000'

Test #6:

score: 0
Accepted
time: 147ms
memory: 3900kb

input:

500 500

output:

49322369986244.0156250000

result:

ok found '49322369986244.0156250', expected '49322369986259.6953125', error '0.0000000'

Test #7:

score: 0
Accepted
time: 11ms
memory: 3852kb

input:

252 139

output:

488838606007.2880249023

result:

ok found '488838606007.2880249', expected '488838606007.1795654', error '0.0000000'

Test #8:

score: 0
Accepted
time: 5ms
memory: 3900kb

input:

96 359

output:

181277190205.0918579102

result:

ok found '181277190205.0918579', expected '181277190205.0371094', error '0.0000000'

Test #9:

score: 0
Accepted
time: 33ms
memory: 3872kb

input:

237 487

output:

4992630041189.0585937500

result:

ok found '4992630041189.0585938', expected '4992630041184.1953125', error '0.0000000'

Test #10:

score: 0
Accepted
time: 4ms
memory: 3868kb

input:

81 411

output:

142953582310.3024902344

result:

ok found '142953582310.3024902', expected '142953582310.2773743', error '0.0000000'

Test #11:

score: 0
Accepted
time: 3ms
memory: 3860kb

input:

221 39

output:

25968641931.5313453674

result:

ok found '25968641931.5313454', expected '25968641931.5297089', error '0.0000000'

Test #12:

score: 0
Accepted
time: 23ms
memory: 3848kb

input:

270 259

output:

2087014641698.4094238281

result:

ok found '2087014641698.4094238', expected '2087014641700.0227051', error '0.0000000'

Test #13:

score: 0
Accepted
time: 81ms
memory: 3844kb

input:

422 387

output:

17770193032370.3632812500

result:

ok found '17770193032370.3632812', expected '17770193032349.6250000', error '0.0000000'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3952kb

input:

63 15

output:

89852047.5085163414

result:

ok found '89852047.5085163', expected '89852047.5085171', error '0.0000000'

Test #15:

score: 0
Accepted
time: 86ms
memory: 3860kb

input:

407 439

output:

20515296102936.8046875000

result:

ok found '20515296102936.8046875', expected '20515296102923.2070312', error '0.0000000'

Test #16:

score: 0
Accepted
time: 0ms
memory: 3868kb

input:

18 18

output:

3123573.6956475577

result:

ok found '3123573.6956476', expected '3123573.6956476', error '0.0000000'

Test #17:

score: 0
Accepted
time: 6ms
memory: 3856kb

input:

171 146

output:

168786179167.0080261230

result:

ok found '168786179167.0080261', expected '168786179167.0194092', error '0.0000000'

Test #18:

score: 0
Accepted
time: 9ms
memory: 3800kb

input:

311 70

output:

232875509505.2557067871

result:

ok found '232875509505.2557068', expected '232875509505.2748413', error '0.0000000'

Test #19:

score: 0
Accepted
time: 15ms
memory: 3856kb

input:

155 494

output:

1439825967584.3798828125

result:

ok found '1439825967584.3798828', expected '1439825967582.9992676', error '0.0000000'

Test #20:

score: 0
Accepted
time: 21ms
memory: 3848kb

input:

204 418

output:

2347066265475.3222656250

result:

ok found '2347066265475.3222656', expected '2347066265474.4873047', error '0.0000000'

Test #21:

score: 0
Accepted
time: 0ms
memory: 3848kb

input:

344 46

output:

136054690372.2135314941

result:

ok found '136054690372.2135315', expected '136054690372.2714844', error '0.0000000'

Test #22:

score: 0
Accepted
time: 8ms
memory: 3888kb

input:

188 174

output:

318429902145.0037841797

result:

ok found '318429902145.0037842', expected '318429902145.0420532', error '0.0000000'

Test #23:

score: 0
Accepted
time: 9ms
memory: 3788kb

input:

137 394

output:

632896487876.0996093750

result:

ok found '632896487876.0996094', expected '632896487876.0313721', error '0.0000000'

Test #24:

score: 0
Accepted
time: 6ms
memory: 3856kb

input:

481 22

output:

85020954588.1791992188

result:

ok found '85020954588.1791992', expected '85020954588.2031097', error '0.0000000'

Test #25:

score: 0
Accepted
time: 1ms
memory: 3944kb

input:

30 446

output:

8705279441.3519744873

result:

ok found '8705279441.3519745', expected '8705279441.3520851', error '0.0000000'

Test #26:

score: 0
Accepted
time: 22ms
memory: 3936kb

input:

204 440

output:

2600626525627.4477539062

result:

ok found '2600626525627.4477539', expected '2600626525627.9575195', error '0.0000000'

Test #27:

score: 0
Accepted
time: 0ms
memory: 3860kb

input:

2 3

output:

175.4159265359

result:

ok found '175.4159265', expected '175.4159265', error '0.0000000'

Extra Test:

score: 0
Extra Test Passed
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