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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#514957#2267. Jewelry SizeCheek_support#WA 2ms4408kbC++201.7kb2024-08-11 13:49:182024-08-11 13:49:18

Judging History

你现在查看的是最新测评结果

  • [2024-08-11 13:49:18]
  • 评测
  • 测评结果：WA
  • 用时：2ms
  • 内存：4408kb
查看
  • [2024-08-11 13:49:18]
  • 提交

answer

#include <bits/stdc++.h>
#define rep(i,j,k) for(int i=j;i<=k;i++)
using namespace std;
int read(){
    char ch=getchar();int x=0,f=1;
    for(;ch<'0'||ch>'9';ch=getchar())if(ch=='-')f=-1;
    for(;ch>='0'&&ch<='9';ch=getchar())x=x*10+ch-'0';
    return f*x;
}
int n;
const double eps=1e-7;
const int N=1000;
const double Pi=acos(-1);
int L[N+10];

double Angle(double r,double b){
    return acos((r*r+r*r-b*b)/2.0/r/r);
}
double chk(double mid){
    double sum=0;
    rep(i,1,n){
        sum+=Angle(mid,L[i]);
    }
    return sum;
}
int main(){
    n=read();
    rep(i,1,n){
        L[i]=read();
    }
    sort(L+1,L+n+1);

    double tmp=chk((double)L[n]/2.0+eps);
    double ll=(double)L[n]/2.0+eps;
    double rr=ll;
    if(tmp>2*Pi||fabs(tmp-2*Pi)<eps){
        while(true){
            rr*=2;
            double sum1=chk(rr);
            if(sum1>2*Pi){
                
            }else{
                break;
            }
        }
        while(fabs(rr-ll)>eps){
            double mid=(ll+rr)/2.0;
            if(chk(mid)<2*Pi){
                rr=mid;
            }else{
                ll=mid;
            }
        }
        printf("%.8f\n",(ll+rr)/2);
        return 0;
    }
    
    n--;
    while(true){
        rr=ll*2;
        double sum1=chk(rr);
        double sum2=Angle(rr,L[n+1]);
        if(sum1<sum2){
            ll*=2;
        }else{
            break;
        }
    }
    
    while(fabs(rr-ll)>eps){
        double mid=(ll+rr)/2.0;
        if(chk(mid)<Angle(mid,L[n+1])){
            ll=mid;
        }else{
            rr=mid;
        }
    }
    printf("%.8f\n",(ll+rr)/2);
    return 0;
}
Source code, Language: C++20

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 4132kb

input:

5
3 1 6 1 7

output:

3.54440436

result:

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

Test #2:

score: 0
Accepted
time: 0ms
memory: 4084kb

input:

3
500 300 400

output:

250.00000013

result:

ok found '250.0000001', expected '250.0000000', error '0.0000000'

Test #3:

score: 0
Accepted
time: 0ms
memory: 4148kb

input:

8
2000 3000 4000 2000 3000 4000 2000 3000

output:

3780.97412059

result:

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

Test #4:

score: 0
Accepted
time: 0ms
memory: 4312kb

input:

10
602 67 67 67 67 67 67 67 67 67

output:

3003.13981701

result:

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

Test #5:

score: 0
Accepted
time: 1ms
memory: 4320kb

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:

490696.12979512

result:

ok found '490696.1297951', expected '490696.1297935', error '0.0000000'

Test #6:

score: 0
Accepted
time: 2ms
memory: 4232kb

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:

463780.04847428

result:

ok found '463780.0484743', expected '463780.0484799', error '0.0000000'

Test #7:

score: 0
Accepted
time: 2ms
memory: 4072kb

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:

474979.62360146

result:

ok found '474979.6236015', expected '474979.6236043', error '0.0000000'

Test #8:

score: 0
Accepted
time: 2ms
memory: 4392kb

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:

462340.85626358

result:

ok found '462340.8562636', expected '462340.8562630', error '0.0000000'

Test #9:

score: 0
Accepted
time: 1ms
memory: 4212kb

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:

48616.36963225

result:

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

Test #10:

score: 0
Accepted
time: 0ms
memory: 4356kb

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:

48970.93943725

result:

ok found '48970.9394373', expected '48970.9394372', error '0.0000000'

Test #11:

score: 0
Accepted
time: 0ms
memory: 4408kb

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:

47884.14953057

result:

ok found '47884.1495306', expected '47884.1495305', error '0.0000000'

Test #12:

score: 0
Accepted
time: 1ms
memory: 4388kb

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:

48019.61516506

result:

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

Test #13:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

10
4719 3755 2542 1190 5557 3641 5426 1578 5247 3181

output:

6009.54525298

result:

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

Test #14:

score: 0
Accepted
time: 0ms
memory: 4320kb

input:

10
2443 973 5013 5104 418 5498 2436 5522 512 1539

output:

4889.46749590

result:

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

Test #15:

score: 0
Accepted
time: 0ms
memory: 4168kb

input:

10
1854 1474 3499 1575 1422 3130 2402 5948 2378 2670

output:

4340.86617100

result:

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

Test #16:

score: 0
Accepted
time: 0ms
memory: 4140kb

input:

10
2343 137 3849 255 2682 1652 1797 4299 3474 4549

output:

4123.01658991

result:

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

Test #17:

score: 0
Accepted
time: 0ms
memory: 4076kb

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:

128109.40651701

result:

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

Test #18:

score: 0
Accepted
time: 1ms
memory: 4200kb

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:

125432.98818240

result:

ok found '125432.9881824', expected '125432.9881825', error '0.0000000'

Test #19:

score: 0
Accepted
time: 1ms
memory: 4336kb

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:

116578.99306118

result:

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

Test #20:

score: 0
Accepted
time: 1ms
memory: 4276kb

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:

118802.71684376

result:

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

Test #21:

score: 0
Accepted
time: 0ms
memory: 4132kb

input:

3
4719 3755 2542

output:

2368.99134897

result:

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

Test #22:

score: 0
Accepted
time: 0ms
memory: 4364kb

input:

3
5104 418 5498

output:

7931.54979171

result:

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

Test #23:

score: 0
Accepted
time: 0ms
memory: 4204kb

input:

3
2670 3423 5104

output:

2776.81973773

result:

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

Test #24:

score: 0
Accepted
time: 0ms
memory: 4388kb

input:

3
1797 4299 3474

output:

2222.97509385

result:

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

Test #25:

score: 0
Accepted
time: 0ms
memory: 4260kb

input:

4
4719 3755 2542 1190

output:

2385.88448293

result:

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

Test #26:

score: 0
Accepted
time: 0ms
memory: 4020kb

input:

4
2443 973 5013 5104

output:

2673.31010422

result:

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

Test #27:

score: 0
Accepted
time: 0ms
memory: 4104kb

input:

4
1854 1474 3499 1575

output:

1762.71848179

result:

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

Test #28:

score: 0
Accepted
time: 0ms
memory: 4320kb

input:

4
2682 1652 1797 4299

output:

2155.77507244

result:

ok found '2155.7750724', expected '2155.7750725', error '0.0000000'

Test #29:

score: 0
Accepted
time: 0ms
memory: 4140kb

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:

247805.37488771

result:

ok found '247805.3748877', expected '247805.3748878', error '0.0000000'

Test #30:

score: 0
Accepted
time: 1ms
memory: 4072kb

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:

236689.37061873

result:

ok found '236689.3706187', expected '236689.3706188', error '0.0000000'

Test #31:

score: 0
Accepted
time: 1ms
memory: 4332kb

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:

240655.23170011

result:

ok found '240655.2317001', expected '240655.2317000', error '0.0000000'

Test #32:

score: 0
Accepted
time: 1ms
memory: 4408kb

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:

239234.45908297

result:

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

Test #33:

score: 0
Accepted
time: 0ms
memory: 3956kb

input:

5
4719 3755 2542 1190 5557

output:

3171.25984182

result:

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

Test #34:

score: 0
Accepted
time: 0ms
memory: 4172kb

input:

5
2443 973 5013 5104 418

output:

2706.46183376

result:

ok found '2706.4618338', expected '2706.4618337', error '0.0000000'

Test #35:

score: 0
Accepted
time: 0ms
memory: 4200kb

input:

5
1854 1474 3499 1575 1422

output:

1804.04624826

result:

ok found '1804.0462483', expected '1804.0462482', error '0.0000000'

Test #36:

score: 0
Accepted
time: 0ms
memory: 4196kb

input:

5
2343 137 3849 255 2682

output:

1926.48513828

result:

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

Test #37:

score: 0
Accepted
time: 0ms
memory: 4136kb

input:

6
4719 3755 2542 1190 5557 3641

output:

3658.24418484

result:

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

Test #38:

score: 0
Accepted
time: 0ms
memory: 4316kb

input:

6
2443 973 5013 5104 418 5498

output:

3441.78494468

result:

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

Test #39:

score: 0
Accepted
time: 0ms
memory: 4200kb

input:

6
1854 1474 3499 1575 1422 3130

output:

2223.64733058

result:

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

Test #40:

score: 0
Accepted
time: 0ms
memory: 4332kb

input:

6
2343 137 3849 255 2682 1652

output:

2013.75237760

result:

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

Test #41:

score: 0
Accepted
time: 0ms
memory: 4200kb

input:

7
4719 3755 2542 1190 5557 3641 5426

output:

4485.56734264

result:

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

Test #42:

score: 0
Accepted
time: 0ms
memory: 4364kb

input:

7
2443 973 5013 5104 418 5498 2436

output:

3760.18015759

result:

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

Test #43:

score: 0
Accepted
time: 0ms
memory: 4088kb

input:

7
1854 1474 3499 1575 1422 3130 2402

output:

2569.83844552

result:

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

Test #44:

score: 0
Accepted
time: 0ms
memory: 4320kb

input:

7
2343 137 3849 255 2682 1652 1797

output:

2218.93807493

result:

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

Test #45:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

3
3 4 5

output:

2.50000014

result:

ok found '2.5000001', expected '2.5000000', error '0.0000001'

Test #46:

score: 0
Accepted
time: 0ms
memory: 4048kb

input:

5
2 2 3 4 4

output:

2.61208401

result:

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

Test #47:

score: 0
Accepted
time: 0ms
memory: 4204kb

input:

4
20 30 40 50

output:

26.17648436

result:

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

Test #48:

score: 0
Accepted
time: 0ms
memory: 4228kb

input:

5
20 50 40 30 60

output:

35.20957453

result:

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

Test #49:

score: 0
Accepted
time: 0ms
memory: 4236kb

input:

5
11 12 13 14 15

output:

11.09316169

result:

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

Test #50:

score: 0
Accepted
time: 0ms
memory: 4196kb

input:

8
1 1 1 1 1 1 1 1

output:

1.30656300

result:

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

Test #51:

score: 0
Accepted
time: 0ms
memory: 4164kb

input:

3
13 12 5

output:

6.50000015

result:

ok found '6.5000001', expected '6.5000000', error '0.0000000'

Test #52:

score: 0
Accepted
time: 0ms
memory: 4104kb

input:

3
1300 1200 400

output:

652.87541341

result:

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

Test #53:

score: 0
Accepted
time: 0ms
memory: 4220kb

input:

3
60 120 130

output:

65.19048006

result:

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

Test #54:

score: 0
Accepted
time: 0ms
memory: 4332kb

input:

4
6000 5801 100 100

output:

29539.48971910

result:

ok found '29539.4897191', expected '29539.4897321', error '0.0000000'

Test #55:

score: 0
Accepted
time: 0ms
memory: 4068kb

input:

4
6000 1 6000 1

output:

3000.00004170

result:

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

Test #56:

score: 0
Accepted
time: 0ms
memory: 4280kb

input:

4
6000 100 6000 200

output:

3000.93741866

result:

ok found '3000.9374187', expected '3000.9374186', error '0.0000000'

Test #57:

score: 0
Accepted
time: 0ms
memory: 4280kb

input:

4
6000 5999 1 1

output:

3463.81297590

result:

ok found '3463.8129759', expected '3463.8129761', error '0.0000000'

Test #58:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

5
6000 1501 1500 1500 1500

output:

91877.75772635

result:

ok found '91877.7577263', expected '91877.7577247', error '0.0000000'

Test #59:

score: 0
Accepted
time: 0ms
memory: 4136kb

input:

5
6000 6000 1 1 1

output:

3000.00009374

result:

ok found '3000.0000937', expected '3000.0000937', error '0.0000000'

Test #60:

score: 0
Accepted
time: 0ms
memory: 4320kb

input:

5
6000 6000 6000 1 1

output:

3464.29408125

result:

ok found '3464.2940813', expected '3464.2940813', error '0.0000000'

Test #61:

score: 0
Accepted
time: 0ms
memory: 4128kb

input:

5
6000 6000 6000 6000 1

output:

4242.76568893

result:

ok found '4242.7656889', expected '4242.7656890', error '0.0000000'

Test #62:

score: 0
Accepted
time: 0ms
memory: 4192kb

input:

5
6000 6000 6000 6000 6000

output:

5103.90485015

result:

ok found '5103.9048502', expected '5103.9048501', error '0.0000000'

Test #63:

score: 0
Accepted
time: 0ms
memory: 4220kb

input:

5
1000 2000 3000 4000 5000

output:

2717.56722526

result:

ok found '2717.5672253', expected '2717.5672253', error '0.0000000'

Test #64:

score: 0
Accepted
time: 0ms
memory: 4212kb

input:

4
6000 2001 2000 2000

output:

89465.07978300

result:

ok found '89465.0797830', expected '89465.0797801', error '0.0000000'

Test #65:

score: 0
Accepted
time: 0ms
memory: 4388kb

input:

5
6000 1510 1510 1510 1510

output:

14662.35416733

result:

ok found '14662.3541673', expected '14662.3541673', error '0.0000000'

Test #66:

score: 0
Accepted
time: 0ms
memory: 4072kb

input:

4
60 21 20 20

output:

91.67913224

result:

ok found '91.6791322', expected '91.6791323', error '0.0000000'

Test #67:

score: -100
Wrong Answer
time: 1ms
memory: 4396kb

input:

1000
5993 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...

output:

94726.45505129

result:

wrong answer 1st numbers differ - expected: '94723.6448403', found: '94726.4550513', error = '0.0000297'
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