QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#345730#8316. Random Permutationblack_moonrise#AC ✓0ms3932kbC++14268b2024-03-07 13:39:252024-03-07 13:39:25

Judging History

你现在查看的是最新测评结果

  • [2024-03-07 13:39:25]
  • 评测
  • 测评结果：AC
  • 用时：0ms
  • 内存：3932kb
查看
  • [2024-03-07 13:39:25]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 5;

int n;
int main() {
	scanf("%d", &n);
	double ans = 1.0;
	for(int i=1; i<=n; i++) ans *= i;
	for(int i=1; i<=n; i++) {
		ans *= 1.0 * i / n;
	}
	printf("%.10lf\n", ans);
	return 0;
}
Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3804kb

input:

2

output:

1.0000000000

result:

ok found '1.000000000', expected '1.000000000', error '0.000000000'

Test #2:

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

input:

3

output:

1.3333333333

result:

ok found '1.333333333', expected '1.333333333', error '0.000000000'

Test #3:

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

input:

50

output:

104147662762941430908343036062514697228779520.0000000000

result:

ok found '104147662762941430908343036062514697228779520.000000000', expected '104147662762941312066099264666008306912854016.000000000', error '0.000000000'

Test #4:

score: 0
Accepted
time: 0ms
memory: 3896kb

input:

1

output:

1.0000000000

result:

ok found '1.000000000', expected '1.000000000', error '0.000000000'

Test #5:

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

input:

4

output:

2.2500000000

result:

ok found '2.250000000', expected '2.250000000', error '0.000000000'

Test #6:

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

input:

5

output:

4.6080000000

result:

ok found '4.608000000', expected '4.608000000', error '0.000000000'

Test #7:

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

input:

6

output:

11.1111111111

result:

ok found '11.111111111', expected '11.111111111', error '0.000000000'

Test #8:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

7

output:

30.8442910692

result:

ok found '30.844291069', expected '30.844291069', error '0.000000000'

Test #9:

score: 0
Accepted
time: 0ms
memory: 3892kb

input:

8

output:

96.8994140625

result:

ok found '96.899414062', expected '96.899414062', error '0.000000000'

Test #10:

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

input:

9

output:

339.8939863503

result:

ok found '339.893986350', expected '339.893986350', error '0.000000000'

Test #11:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

10

output:

1316.8189440000

result:

ok found '1316.818944000', expected '1316.818944000', error '0.000000000'

Test #12:

score: 0
Accepted
time: 0ms
memory: 3908kb

input:

11

output:

5584.5977797817

result:

ok found '5584.597779782', expected '5584.597779782', error '0.000000000'

Test #13:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

12

output:

25733.5069444444

result:

ok found '25733.506944444', expected '25733.506944444', error '0.000000000'

Test #14:

score: 0
Accepted
time: 0ms
memory: 3824kb

input:

13

output:

128025.6686655822

result:

ok found '128025.668665582', expected '128025.668665582', error '0.000000000'

Test #15:

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

input:

14

output:

683949.7649579906

result:

ok found '683949.764957991', expected '683949.764957991', error '0.000000000'

Test #16:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

15

output:

3905083.6065260265

result:

ok found '3905083.606526027', expected '3905083.606526028', error '0.000000000'

Test #17:

score: 0
Accepted
time: 0ms
memory: 3876kb

input:

16

output:

23731187.1920692287

result:

ok found '23731187.192069229', expected '23731187.192069229', error '0.000000000'

Test #18:

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

input:

17

output:

152934464.5497080386

result:

ok found '152934464.549708039', expected '152934464.549708039', error '0.000000000'

Test #19:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

18

output:

1041782238.1487700939

result:

ok found '1041782238.148770094', expected '1041782238.148770452', error '0.000000000'

Test #20:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

19

output:

7479469995.7305078506

result:

ok found '7479469995.730507851', expected '7479469995.730518341', error '0.000000000'

Test #21:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

20

output:

56448098958.8731689453

result:

ok found '56448098958.873168945', expected '56448098958.873062134', error '0.000000000'

Test #22:

score: 0
Accepted
time: 0ms
memory: 3920kb

input:

21

output:

446768591341.2456054688

result:

ok found '446768591341.245605469', expected '446768591341.246398926', error '0.000000000'

Test #23:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

22

output:

3700276748921.9370117188

result:

ok found '3700276748921.937011719', expected '3700276748921.935546875', error '0.000000000'

Test #24:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

23

output:

32007269639380.5078125000

result:

ok found '32007269639380.507812500', expected '32007269639380.542968750', error '0.000000000'

Test #25:

score: 0
Accepted
time: 0ms
memory: 3932kb

input:

24

output:

288630046441757.5625000000

result:

ok found '288630046441757.562500000', expected '288630046441757.687500000', error '0.000000000'

Test #26:

score: 0
Accepted
time: 0ms
memory: 3884kb

input:

25

output:

2708888570942366.5000000000

result:

ok found '2708888570942366.500000000', expected '2708888570942365.000000000', error '0.000000000'

Test #27:

score: 0
Accepted
time: 0ms
memory: 3828kb

input:

26

output:

26419890078249524.0000000000

result:

ok found '26419890078249524.000000000', expected '26419890078249484.000000000', error '0.000000000'

Test #28:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

27

output:

267389254029561440.0000000000

result:

ok found '267389254029561440.000000000', expected '267389254029561664.000000000', error '0.000000000'

Test #29:

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

input:

28

output:

2804508541393388544.0000000000

result:

ok found '2804508541393388544.000000000', expected '2804508541393392128.000000000', error '0.000000000'

Test #30:

score: 0
Accepted
time: 0ms
memory: 3932kb

input:

29

output:

30446382653772677120.0000000000

result:

ok found '30446382653772677120.000000000', expected '30446382653772705792.000000000', error '0.000000000'

Test #31:

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

input:

30

output:

341729529206733799424.0000000000

result:

ok found '341729529206733799424.000000000', expected '341729529206733996032.000000000', error '0.000000000'

Test #32:

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

input:

31

output:

3961238839958896640000.0000000000

result:

ok found '3961238839958896640000.000000000', expected '3961238839958900834304.000000000', error '0.000000000'

Test #33:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

32

output:

47374450754549285126144.0000000000

result:

ok found '47374450754549285126144.000000000', expected '47374450754549285126144.000000000', error '0.000000000'

Test #34:

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

input:

33

output:

583997997505978422001664.0000000000

result:

ok found '583997997505978422001664.000000000', expected '583997997505977616695296.000000000', error '0.000000000'

Test #35:

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

input:

34

output:

7413888129961785011732480.0000000000

result:

ok found '7413888129961785011732480.000000000', expected '7413888129961783937990656.000000000', error '0.000000000'

Test #36:

score: 0
Accepted
time: 0ms
memory: 3912kb

input:

35

output:

96846458602574911295717376.0000000000

result:

ok found '96846458602574911295717376.000000000', expected '96846458602575065914540032.000000000', error '0.000000000'

Test #37:

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

input:

36

output:

1300709375400894715528216576.0000000000

result:

ok found '1300709375400894715528216576.000000000', expected '1300709375400895815039844352.000000000', error '0.000000000'

Test #38:

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

input:

37

output:

17947747702888928644194893824.0000000000

result:

ok found '17947747702888928644194893824.000000000', expected '17947747702888873668613505024.000000000', error '0.000000000'

Test #39:

score: 0
Accepted
time: 0ms
memory: 3808kb

input:

38

output:

254251935779676793621392130048.0000000000

result:

ok found '254251935779676793621392130048.000000000', expected '254251935779677532493205995520.000000000', error '0.000000000'

Test #40:

score: 0
Accepted
time: 0ms
memory: 3880kb

input:

39

output:

3695306616464917277599384731648.0000000000

result:

ok found '3695306616464917277599384731648.000000000', expected '3695306616464926284798639472640.000000000', error '0.000000000'

Test #41:

score: 0
Accepted
time: 0ms
memory: 3864kb

input:

40

output:

55066881576713399902958625226752.0000000000

result:

ok found '55066881576713399902958625226752.000000000', expected '55066881576713192737375766183936.000000000', error '0.000000000'

Test #42:

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

input:

41

output:

840852315079047537117173987147776.0000000000

result:

ok found '840852315079047537117173987147776.000000000', expected '840852315079047104771609759580160.000000000', error '0.000000000'

Test #43:

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

input:

42

output:

13148803459163223405425645737476096.0000000000

result:

ok found '13148803459163223405425645737476096.000000000', expected '13148803459163262604756802370273280.000000000', error '0.000000000'

Test #44:

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

input:

43

output:

210450398178930560697581080378605568.0000000000

result:

ok found '210450398178930560697581080378605568.000000000', expected '210450398178931261673855881341566976.000000000', error '0.000000000'

Test #45:

score: 0
Accepted
time: 0ms
memory: 3896kb

input:

44

output:

3445727502538223377711759439926657024.0000000000

result:

ok found '3445727502538223377711759439926657024.000000000', expected '3445727502538221016528518005104050176.000000000', error '0.000000000'

Test #46:

score: 0
Accepted
time: 0ms
memory: 3924kb

input:

45

output:

57684695217789636283254580455250329600.0000000000

result:

ok found '57684695217789636283254580455250329600.000000000', expected '57684695217789551280657888801636483072.000000000', error '0.000000000'

Test #47:

score: 0
Accepted
time: 0ms
memory: 3896kb

input:

46

output:

986913587506380617879310000390232080384.0000000000

result:

ok found '986913587506380617879310000390232080384.000000000', expected '986913587506382884615221777819934654464.000000000', error '0.000000000'

Test #48:

score: 0
Accepted
time: 0ms
memory: 3820kb

input:

47

output:

17247882244608247401485816486459122647040.0000000000

result:

ok found '17247882244608247401485816486459122647040.000000000', expected '17247882244608259490744012632750869708800.000000000', error '0.000000000'

Test #49:

score: 0
Accepted
time: 0ms
memory: 3892kb

input:

48

output:

307778431583667023382452887029985950302208.0000000000

result:

ok found '307778431583667023382452887029985950302208.000000000', expected '307778431583667487609967619047589037473792.000000000', error '0.000000000'

Test #50:

score: 0
Accepted
time: 0ms
memory: 3812kb

input:

49

output:

5605338120585210694354002884478170864549888.0000000000

result:

ok found '5605338120585210694354002884478170864549888.000000000', expected '5605338120585241642854985018985043342655488.000000000', error '0.000000000'

Extra Test:

score: 0
Extra Test Passed
English 繁體中文 简体中文

Server Time: 2024-12-01 00:21:46 | OpenSource Project