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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#18177#2267. Jewelry SizeWu_Ren#WA 690ms5964kbC++11768b2022-01-16 16:59:212022-05-04 17:16:05

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2022-05-04 17:16:05]
  • 评测
  • 测评结果：WA
  • 用时：690ms
  • 内存：5964kb
查看
  • [2022-01-16 16:59:21]
  • 提交

answer

#include<bits/stdc++.h>
int mod;
const long double pi=acos(-1);
using namespace std;
int n,m,K;
int a[1000010];
char s[1000010];
long double ans,res=1e18,d;
bool chk(long double x,int k){
	long double sum=0,t=2*x*x;
	for(int i=1;i<n;i++) sum+=acosl(1-a[i]/t);
	if(k) sum+=acosl(1-a[n]/t);
	else sum+=2*pi-acosl(1-a[n]/t);
	if(fabsl(sum-2*pi)<=1e-3) ans=x;
	return sum<2*pi;
}
int main(){
	scanf("%d",&n);
	for(int i=1;i<=n;i++) scanf("%d",&a[i]);
	sort(a+1,a+n+1),d=a[n]/2.0;
	for(int i=1;i<=n;i++) a[i]=a[i]*a[i];
	for(int k=0;k<2;k++){
		ans=1e18;
		long double l=d,r=1e10,mid;
		for(int _=0;_<6000;_++){
			mid=(l+r)/2;
			if(chk(mid,k)) (k?r:l)=mid;
			else (k?l:r)=mid;
		}
		res=min(res,ans);
	}
	printf("%.12lf",(double)res);
}
Source code, Language: C++11

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 7ms
memory: 5832kb

input:

5
3 1 6 1 7

output:

3.544404350919

result:

ok found '3.5444044', expected '3.5444044', error '0.0000000'

Test #2:

score: 0
Accepted
time: 9ms
memory: 5784kb

input:

3
500 300 400

output:

250.000000000000

result:

ok found '250.0000000', expected '250.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 9ms
memory: 5836kb

input:

8
2000 3000 4000 2000 3000 4000 2000 3000

output:

3780.974120599489

result:

ok found '3780.9741206', expected '3780.9741206', error '0.0000000'

Test #4:

score: 0
Accepted
time: 11ms
memory: 3720kb

input:

10
602 67 67 67 67 67 67 67 67 67

output:

3003.139816965297

result:

ok found '3003.1398170', expected '3003.1398170', error '0.0000000'

Test #5:

score: 0
Accepted
time: 690ms
memory: 3804kb

input:

1000
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181 3524 983 4151 4337 3004 2062 1048 4739 499 2530 1378 450 5459 651 1714 4051 416 4186 2598 1031 374 5523 4787 1122 4919 2549 4763 4345 2333 4009 5732 5857 3198 3882 2399 4409 4151 3447 1353 4650 4184 2731 3307 3642 3383 5021 5899 2005 3206 702 30...

output:

490696.129793451575

result:

ok found '490696.1297935', expected '490696.1297935', error '0.0000000'

Test #6:

score: 0
Accepted
time: 677ms
memory: 5696kb

input:

1000
2443 973 5013 5104 418 5498 2436 5522 512 1539 3851 355 50 4167 3205 286 1171 5083 867 2208 2497 2455 3142 2247 1531 2986 862 5930 3449 4996 5201 5892 5969 4214 4995 4594 1917 5637 4115 2429 5383 171 990 5433 4338 4195 5720 5509 1483 4793 1716 2187 5454 3065 4434 984 4257 3503 5120 1705 2498 43...

output:

463780.048479936901

result:

ok found '463780.0484799', expected '463780.0484799', error '0.0000000'

Test #7:

score: 0
Accepted
time: 680ms
memory: 3772kb

input:

1000
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670 3423 5104 295 1663 475 66 2687 2978 4618 3027 90 5982 4390 5990 4343 4206 465 4394 2436 5904 3740 4290 5585 5445 4071 1006 2575 472 5161 3159 1348 2583 2262 1643 4247 944 5917 933 3922 4534 2166 2218 4515 555 2208 2857 2967 879 5457 5403 4989 31...

output:

474979.623604276916

result:

ok found '474979.6236043', expected '474979.6236043', error '0.0000000'

Test #8:

score: 0
Accepted
time: 681ms
memory: 3768kb

input:

1000
2343 137 3849 255 2682 1652 1797 4299 3474 4549 3158 4921 4489 2138 1620 2009 4673 5285 355 2131 139 1855 3936 1840 4743 3946 5455 3742 1890 4475 95 2439 4613 2150 2694 5501 3803 4491 3800 1276 1245 5164 196 5734 1302 22 5950 4181 5307 304 311 5446 2159 2453 5493 5108 399 3153 2849 2289 1628 11...

output:

462340.856263048132

result:

ok found '462340.8562630', expected '462340.8562630', error '0.0000000'

Test #9:

score: 0
Accepted
time: 69ms
memory: 3792kb

input:

100
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181 3524 983 4151 4337 3004 2062 1048 4739 499 2530 1378 450 5459 651 1714 4051 416 4186 2598 1031 374 5523 4787 1122 4919 2549 4763 4345 2333 4009 5732 5857 3198 3882 2399 4409 4151 3447 1353 4650 4184 2731 3307 3642 3383 5021 5899 2005 3206 702 303...

output:

48616.369632259426

result:

ok found '48616.3696323', expected '48616.3696323', error '0.0000000'

Test #10:

score: 0
Accepted
time: 70ms
memory: 5824kb

input:

100
2443 973 5013 5104 418 5498 2436 5522 512 1539 3851 355 50 4167 3205 286 1171 5083 867 2208 2497 2455 3142 2247 1531 2986 862 5930 3449 4996 5201 5892 5969 4214 4995 4594 1917 5637 4115 2429 5383 171 990 5433 4338 4195 5720 5509 1483 4793 1716 2187 5454 3065 4434 984 4257 3503 5120 1705 2498 432...

output:

48970.939437214744

result:

ok found '48970.9394372', expected '48970.9394372', error '0.0000000'

Test #11:

score: 0
Accepted
time: 66ms
memory: 5860kb

input:

100
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670 3423 5104 295 1663 475 66 2687 2978 4618 3027 90 5982 4390 5990 4343 4206 465 4394 2436 5904 3740 4290 5585 5445 4071 1006 2575 472 5161 3159 1348 2583 2262 1643 4247 944 5917 933 3922 4534 2166 2218 4515 555 2208 2857 2967 879 5457 5403 4989 319...

output:

47884.149530523064

result:

ok found '47884.1495305', expected '47884.1495305', error '0.0000000'

Test #12:

score: 0
Accepted
time: 65ms
memory: 3792kb

input:

100
2343 137 3849 255 2682 1652 1797 4299 3474 4549 3158 4921 4489 2138 1620 2009 4673 5285 355 2131 139 1855 3936 1840 4743 3946 5455 3742 1890 4475 95 2439 4613 2150 2694 5501 3803 4491 3800 1276 1245 5164 196 5734 1302 22 5950 4181 5307 304 311 5446 2159 2453 5493 5108 399 3153 2849 2289 1628 115...

output:

48019.615165084499

result:

ok found '48019.6151651', expected '48019.6151651', error '0.0000000'

Test #13:

score: 0
Accepted
time: 10ms
memory: 5764kb

input:

10
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181

output:

6009.545252984120

result:

ok found '6009.5452530', expected '6009.5452530', error '0.0000000'

Test #14:

score: 0
Accepted
time: 8ms
memory: 5808kb

input:

10
2443 973 5013 5104 418 5498 2436 5522 512 1539

output:

4889.467495887949

result:

ok found '4889.4674959', expected '4889.4674959', error '0.0000000'

Test #15:

score: 0
Accepted
time: 9ms
memory: 3768kb

input:

10
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670

output:

4340.866170996289

result:

ok found '4340.8661710', expected '4340.8661710', error '0.0000000'

Test #16:

score: 0
Accepted
time: 10ms
memory: 3916kb

input:

10
2343 137 3849 255 2682 1652 1797 4299 3474 4549

output:

4123.016589921290

result:

ok found '4123.0165899', expected '4123.0165899', error '0.0000000'

Test #17:

score: 0
Accepted
time: 183ms
memory: 5912kb

input:

250
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181 3524 983 4151 4337 3004 2062 1048 4739 499 2530 1378 450 5459 651 1714 4051 416 4186 2598 1031 374 5523 4787 1122 4919 2549 4763 4345 2333 4009 5732 5857 3198 3882 2399 4409 4151 3447 1353 4650 4184 2731 3307 3642 3383 5021 5899 2005 3206 702 303...

output:

128109.406516952644

result:

ok found '128109.4065170', expected '128109.4065170', error '0.0000000'

Test #18:

score: 0
Accepted
time: 191ms
memory: 3780kb

input:

250
2443 973 5013 5104 418 5498 2436 5522 512 1539 3851 355 50 4167 3205 286 1171 5083 867 2208 2497 2455 3142 2247 1531 2986 862 5930 3449 4996 5201 5892 5969 4214 4995 4594 1917 5637 4115 2429 5383 171 990 5433 4338 4195 5720 5509 1483 4793 1716 2187 5454 3065 4434 984 4257 3503 5120 1705 2498 432...

output:

125432.988182484551

result:

ok found '125432.9881825', expected '125432.9881825', error '0.0000000'

Test #19:

score: 0
Accepted
time: 174ms
memory: 5960kb

input:

250
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670 3423 5104 295 1663 475 66 2687 2978 4618 3027 90 5982 4390 5990 4343 4206 465 4394 2436 5904 3740 4290 5585 5445 4071 1006 2575 472 5161 3159 1348 2583 2262 1643 4247 944 5917 933 3922 4534 2166 2218 4515 555 2208 2857 2967 879 5457 5403 4989 319...

output:

116578.993061249072

result:

ok found '116578.9930612', expected '116578.9930612', error '0.0000000'

Test #20:

score: 0
Accepted
time: 172ms
memory: 3780kb

input:

250
2343 137 3849 255 2682 1652 1797 4299 3474 4549 3158 4921 4489 2138 1620 2009 4673 5285 355 2131 139 1855 3936 1840 4743 3946 5455 3742 1890 4475 95 2439 4613 2150 2694 5501 3803 4491 3800 1276 1245 5164 196 5734 1302 22 5950 4181 5307 304 311 5446 2159 2453 5493 5108 399 3153 2849 2289 1628 115...

output:

118802.716843773393

result:

ok found '118802.7168438', expected '118802.7168438', error '0.0000000'

Test #21:

score: 0
Accepted
time: 5ms
memory: 5828kb

input:

3
4719 3755 2542

output:

2368.991348992992

result:

ok found '2368.9913490', expected '2368.9913490', error '0.0000000'

Test #22:

score: 0
Accepted
time: 6ms
memory: 5964kb

input:

3
5104 418 5498

output:

7931.549791727315

result:

ok found '7931.5497917', expected '7931.5497917', error '0.0000000'

Test #23:

score: 0
Accepted
time: 5ms
memory: 3784kb

input:

3
2670 3423 5104

output:

2776.819737716839

result:

ok found '2776.8197377', expected '2776.8197377', error '0.0000000'

Test #24:

score: 0
Accepted
time: 5ms
memory: 3816kb

input:

3
1797 4299 3474

output:

2222.975093858321

result:

ok found '2222.9750939', expected '2222.9750939', error '0.0000000'

Test #25:

score: 0
Accepted
time: 2ms
memory: 3740kb

input:

4
4719 3755 2542 1190

output:

2385.884482899712

result:

ok found '2385.8844829', expected '2385.8844829', error '0.0000000'

Test #26:

score: 0
Accepted
time: 2ms
memory: 5760kb

input:

4
2443 973 5013 5104

output:

2673.310104185370

result:

ok found '2673.3101042', expected '2673.3101042', error '0.0000000'

Test #27:

score: 0
Accepted
time: 0ms
memory: 3792kb

input:

4
1854 1474 3499 1575

output:

1762.718481806271

result:

ok found '1762.7184818', expected '1762.7184818', error '0.0000000'

Test #28:

score: 0
Accepted
time: 3ms
memory: 3792kb

input:

4
2682 1652 1797 4299

output:

2155.775072465035

result:

ok found '2155.7750725', expected '2155.7750725', error '0.0000000'

Test #29:

score: 0
Accepted
time: 357ms
memory: 3716kb

input:

500
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181 3524 983 4151 4337 3004 2062 1048 4739 499 2530 1378 450 5459 651 1714 4051 416 4186 2598 1031 374 5523 4787 1122 4919 2549 4763 4345 2333 4009 5732 5857 3198 3882 2399 4409 4151 3447 1353 4650 4184 2731 3307 3642 3383 5021 5899 2005 3206 702 303...

output:

247805.374887824932

result:

ok found '247805.3748878', expected '247805.3748878', error '0.0000000'

Test #30:

score: 0
Accepted
time: 342ms
memory: 3736kb

input:

500
2443 973 5013 5104 418 5498 2436 5522 512 1539 3851 355 50 4167 3205 286 1171 5083 867 2208 2497 2455 3142 2247 1531 2986 862 5930 3449 4996 5201 5892 5969 4214 4995 4594 1917 5637 4115 2429 5383 171 990 5433 4338 4195 5720 5509 1483 4793 1716 2187 5454 3065 4434 984 4257 3503 5120 1705 2498 432...

output:

236689.370618781599

result:

ok found '236689.3706188', expected '236689.3706188', error '0.0000000'

Test #31:

score: 0
Accepted
time: 338ms
memory: 3868kb

input:

500
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670 3423 5104 295 1663 475 66 2687 2978 4618 3027 90 5982 4390 5990 4343 4206 465 4394 2436 5904 3740 4290 5585 5445 4071 1006 2575 472 5161 3159 1348 2583 2262 1643 4247 944 5917 933 3922 4534 2166 2218 4515 555 2208 2857 2967 879 5457 5403 4989 319...

output:

240655.231699974247

result:

ok found '240655.2317000', expected '240655.2317000', error '0.0000000'

Test #32:

score: 0
Accepted
time: 346ms
memory: 3780kb

input:

500
2343 137 3849 255 2682 1652 1797 4299 3474 4549 3158 4921 4489 2138 1620 2009 4673 5285 355 2131 139 1855 3936 1840 4743 3946 5455 3742 1890 4475 95 2439 4613 2150 2694 5501 3803 4491 3800 1276 1245 5164 196 5734 1302 22 5950 4181 5307 304 311 5446 2159 2453 5493 5108 399 3153 2849 2289 1628 115...

output:

239234.459082972317

result:

ok found '239234.4590830', expected '239234.4590830', error '0.0000000'

Test #33:

score: 0
Accepted
time: 6ms
memory: 3788kb

input:

5
4719 3755 2542 1190 5557

output:

3171.259841819548

result:

ok found '3171.2598418', expected '3171.2598418', error '0.0000000'

Test #34:

score: 0
Accepted
time: 9ms
memory: 5836kb

input:

5
2443 973 5013 5104 418

output:

2706.461833744059

result:

ok found '2706.4618337', expected '2706.4618337', error '0.0000000'

Test #35:

score: 0
Accepted
time: 7ms
memory: 3768kb

input:

5
1854 1474 3499 1575 1422

output:

1804.046248249495

result:

ok found '1804.0462482', expected '1804.0462482', error '0.0000000'

Test #36:

score: 0
Accepted
time: 6ms
memory: 3760kb

input:

5
2343 137 3849 255 2682

output:

1926.485138287835

result:

ok found '1926.4851383', expected '1926.4851383', error '0.0000000'

Test #37:

score: 0
Accepted
time: 7ms
memory: 5900kb

input:

6
4719 3755 2542 1190 5557 3641

output:

3658.244184829064

result:

ok found '3658.2441848', expected '3658.2441848', error '0.0000000'

Test #38:

score: 0
Accepted
time: 9ms
memory: 5960kb

input:

6
2443 973 5013 5104 418 5498

output:

3441.784944708541

result:

ok found '3441.7849447', expected '3441.7849447', error '0.0000000'

Test #39:

score: 0
Accepted
time: 4ms
memory: 3916kb

input:

6
1854 1474 3499 1575 1422 3130

output:

2223.647330588025

result:

ok found '2223.6473306', expected '2223.6473306', error '0.0000000'

Test #40:

score: 0
Accepted
time: 5ms
memory: 5780kb

input:

6
2343 137 3849 255 2682 1652

output:

2013.752377609500

result:

ok found '2013.7523776', expected '2013.7523776', error '0.0000000'

Test #41:

score: 0
Accepted
time: 7ms
memory: 3680kb

input:

7
4719 3755 2542 1190 5557 3641 5426

output:

4485.567342631782

result:

ok found '4485.5673426', expected '4485.5673426', error '0.0000000'

Test #42:

score: 0
Accepted
time: 4ms
memory: 3796kb

input:

7
2443 973 5013 5104 418 5498 2436

output:

3760.180157569502

result:

ok found '3760.1801576', expected '3760.1801576', error '0.0000000'

Test #43:

score: 0
Accepted
time: 5ms
memory: 5764kb

input:

7
1854 1474 3499 1575 1422 3130 2402

output:

2569.838445515678

result:

ok found '2569.8384455', expected '2569.8384455', error '0.0000000'

Test #44:

score: 0
Accepted
time: 4ms
memory: 5808kb

input:

7
2343 137 3849 255 2682 1652 1797

output:

2218.938074898713

result:

ok found '2218.9380749', expected '2218.9380749', error '0.0000000'

Test #45:

score: 0
Accepted
time: 5ms
memory: 3804kb

input:

3
3 4 5

output:

2.500000000000

result:

ok found '2.5000000', expected '2.5000000', error '0.0000000'

Test #46:

score: 0
Accepted
time: 6ms
memory: 3772kb

input:

5
2 2 3 4 4

output:

2.612084041747

result:

ok found '2.6120840', expected '2.6120840', error '0.0000000'

Test #47:

score: 0
Accepted
time: 6ms
memory: 3740kb

input:

4
20 30 40 50

output:

26.176484357784

result:

ok found '26.1764844', expected '26.1764844', error '0.0000000'

Test #48:

score: 0
Accepted
time: 3ms
memory: 5964kb

input:

5
20 50 40 30 60

output:

35.209574511653

result:

ok found '35.2095745', expected '35.2095745', error '0.0000000'

Test #49:

score: 0
Accepted
time: 3ms
memory: 5824kb

input:

5
11 12 13 14 15

output:

11.093161690650

result:

ok found '11.0931617', expected '11.0931617', error '0.0000000'

Test #50:

score: 0
Accepted
time: 8ms
memory: 5912kb

input:

8
1 1 1 1 1 1 1 1

output:

1.306562964876

result:

ok found '1.3065630', expected '1.3065630', error '0.0000000'

Test #51:

score: 0
Accepted
time: 1ms
memory: 3916kb

input:

3
13 12 5

output:

6.500000000000

result:

ok found '6.5000000', expected '6.5000000', error '0.0000000'

Test #52:

score: 0
Accepted
time: 2ms
memory: 3764kb

input:

3
1300 1200 400

output:

652.875413397318

result:

ok found '652.8754134', expected '652.8754134', error '0.0000000'

Test #53:

score: 0
Accepted
time: 3ms
memory: 5784kb

input:

3
60 120 130

output:

65.190480058626

result:

ok found '65.1904801', expected '65.1904801', error '0.0000000'

Test #54:

score: 0
Accepted
time: 6ms
memory: 5760kb

input:

4
6000 5801 100 100

output:

29539.489732117141

result:

ok found '29539.4897321', expected '29539.4897321', error '0.0000000'

Test #55:

score: 0
Accepted
time: 6ms
memory: 3784kb

input:

4
6000 1 6000 1

output:

3000.000000000000

result:

ok found '3000.0000000', expected '3000.0000417', error '0.0000000'

Test #56:

score: 0
Accepted
time: 6ms
memory: 3788kb

input:

4
6000 100 6000 200

output:

3000.937418649734

result:

ok found '3000.9374186', expected '3000.9374186', error '0.0000000'

Test #57:

score: -100
Wrong Answer
time: 6ms
memory: 3764kb

input:

4
6000 5999 1 1

output:

10000000000.000000000000

result:

wrong answer 1st numbers differ - expected: '3463.8129761', found: '10000000000.0000000', error = '2886990.8985310'
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