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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#880889#9778. Brotatoucup-team3702AC ✓114ms160384kbC++14852b2025-02-03 22:40:492025-02-03 22:40:50

Judging History

This is the latest submission verdict.

  • [2025-02-03 22:40:50]
  • Judged
  • Verdict: AC
  • Time: 114ms
  • Memory: 160384kb
Show
  • [2025-02-03 22:40:49]
  • Submitted

answer

#include <cstdio>
#define rep(i, d, u) for(int i = d; i <= u; ++i)
#define dep(i, u, d) for(int i = u; i >= d; --i)
const int _maxn = 100011, _maxm = 211;
int n, m, atpo;
double p, ppow[_maxn], pref[_maxn], dpot[_maxm][_maxn];
int main() {
	scanf("%d%d%lf", &n, &m, &p), ppow[0] = 1;
	if(m > 200) {
		m = 200;
	}
	rep(i, 1, n) {
		pref[i] = pref[i - 1] + (ppow[i] = ppow[i - 1] / (1 - p));
	}
	dep(i, n, 1) {
		dpot[0][i] = dpot[0][i + 1] + ppow[i];
	}
	rep(i, 1, m) {
		dep(j, n, 1) {
			if(dpot[i][j + 1] + pref[j] < dpot[i - 1][j]) {
				atpo = j;
				break;
			}
			dpot[i][j] = (1 - p) * dpot[i][j + 1] + p * dpot[i - 1][j] + 1;
		}
		dpot[i][1] = dpot[i][atpo + 1] + pref[atpo];
		dep(j, atpo, 1) {
			dpot[i][j] = (1 - p) * dpot[i][j + 1] + p * dpot[i][1] + 1;
		}
	}
	printf("%.10lf\n", dpot[m][1]);
	return 0;
}
Source code, Language: C++14

这程序好像有点Bug，我给组数据试试？

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 1664kb

input:

5 0
0.5

output:

62.0000000000

result:

ok found '62.000000000', expected '62.000000000', error '0.000000000'

Test #2:

score: 0
Accepted
time: 0ms
memory: 1664kb

input:

5 1
0.5

output:

47.0000000000

result:

ok found '47.000000000', expected '47.000000000', error '0.000000000'

Test #3:

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

input:

10000 0
0.002

output:

247489700298.2595520020

result:

ok found '247489700298.259552002', expected '247489700298.253692627', error '0.000000000'

Test #4:

score: 0
Accepted
time: 4ms
memory: 12648kb

input:

100000 10
0.0002

output:

38767507133.1830291748

result:

ok found '38767507133.183029175', expected '38767507133.232215881', error '0.000000000'

Test #5:

score: 0
Accepted
time: 0ms
memory: 5092kb

input:

100000 0
0.0002

output:

2430683127165.2084960938

result:

ok found '2430683127165.208496094', expected '2430683127170.376953125', error '0.000000000'

Test #6:

score: 0
Accepted
time: 7ms
memory: 19584kb

input:

100000 20
0.0002

output:

801073272.2307126522

result:

ok found '801073272.230712652', expected '801073272.231680870', error '0.000000000'

Test #7:

score: 0
Accepted
time: 22ms
memory: 35328kb

input:

100000 40
0.0002

output:

478148.7184262861

result:

ok found '478148.718426286', expected '478148.718426307', error '0.000000000'

Test #8:

score: 0
Accepted
time: 3ms
memory: 8044kb

input:

99995 4
0.0001

output:

38976542.8681712896

result:

ok found '38976542.868171290', expected '38976542.868175834', error '0.000000000'

Test #9:

score: 0
Accepted
time: 5ms
memory: 11776kb

input:

99995 10
0.0001

output:

3549184.5977123757

result:

ok found '3549184.597712376', expected '3549184.597712017', error '0.000000000'

Test #10:

score: 0
Accepted
time: 8ms
memory: 16512kb

input:

99995 16
0.0001

output:

399507.4705564815

result:

ok found '399507.470556482', expected '399507.470556742', error '0.000000000'

Test #11:

score: 0
Accepted
time: 3ms
memory: 10240kb

input:

99990 8
0.0001

output:

7773463.9479228426

result:

ok found '7773463.947922843', expected '7773463.947930722', error '0.000000000'

Test #12:

score: 0
Accepted
time: 4ms
memory: 11776kb

input:

99990 10
0.0001

output:

3547428.9454709762

result:

ok found '3547428.945470976', expected '3547428.945472297', error '0.000000000'

Test #13:

score: 0
Accepted
time: 8ms
memory: 13312kb

input:

99990 12
0.0001

output:

1647102.0204342664

result:

ok found '1647102.020434266', expected '1647102.020434395', error '0.000000000'

Test #14:

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

input:

16664 1
0.0012

output:

257920044630.7927551270

result:

ok found '257920044630.792755127', expected '257920044630.860534668', error '0.000000000'

Test #15:

score: 0
Accepted
time: 2ms
memory: 6632kb

input:

16664 21
0.0012

output:

92190688.5444017500

result:

ok found '92190688.544401750', expected '92190688.544415027', error '0.000000000'

Test #16:

score: 0
Accepted
time: 3ms
memory: 7552kb

input:

16664 41
0.0012

output:

59865.0917859182

result:

ok found '59865.091785918', expected '59865.091785920', error '0.000000000'

Test #17:

score: 0
Accepted
time: 0ms
memory: 4588kb

input:

16659 5
0.0003

output:

63366.2644069476

result:

ok found '63366.264406948', expected '63366.264406955', error '0.000000000'

Test #18:

score: 0
Accepted
time: 1ms
memory: 5168kb

input:

16659 11
0.0003

output:

18120.9118635489

result:

ok found '18120.911863549', expected '18120.911863543', error '0.000000000'

Test #19:

score: 0
Accepted
time: 1ms
memory: 4352kb

input:

16659 17
0.0003

output:

16666.5554519720

result:

ok found '16666.555451972', expected '16666.555451967', error '0.000000000'

Test #20:

score: 0
Accepted
time: 0ms
memory: 3328kb

input:

16654 9
0.0001

output:

16656.0794165772

result:

ok found '16656.079416577', expected '16656.079416576', error '0.000000000'

Test #21:

score: 0
Accepted
time: 1ms
memory: 3456kb

input:

16654 11
0.0001

output:

16655.6741221739

result:

ok found '16655.674122174', expected '16655.674122172', error '0.000000000'

Test #22:

score: 0
Accepted
time: 2ms
memory: 3712kb

input:

16654 13
0.0001

output:

16655.6656953643

result:

ok found '16655.665695364', expected '16655.665695363', error '0.000000000'

Test #23:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

2774 2
0.0072

output:

28951389306.9861297607

result:

ok found '28951389306.986129761', expected '28951389306.987514496', error '0.000000000'

Test #24:

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

input:

2774 22
0.0072

output:

11312241.4506537411

result:

ok found '11312241.450653741', expected '11312241.450653942', error '0.000000000'

Test #25:

score: 0
Accepted
time: 0ms
memory: 2816kb

input:

2774 42
0.0072

output:

8222.4151085086

result:

ok found '8222.415108509', expected '8222.415108509', error '0.000000000'

Test #26:

score: 0
Accepted
time: 0ms
memory: 1920kb

input:

2769 6
0.0021

output:

13600.5823557312

result:

ok found '13600.582355731', expected '13600.582355732', error '0.000000000'

Test #27:

score: 0
Accepted
time: 0ms
memory: 2048kb

input:

2769 12
0.0021

output:

3239.5499782112

result:

ok found '3239.549978211', expected '3239.549978211', error '0.000000000'

Test #28:

score: 0
Accepted
time: 0ms
memory: 4016kb

input:

2769 18
0.0021

output:

2776.6281948753

result:

ok found '2776.628194875', expected '2776.628194875', error '0.000000000'

Test #29:

score: 0
Accepted
time: 0ms
memory: 2048kb

input:

2764 10
0.0007

output:

2765.9870739550

result:

ok found '2765.987073955', expected '2765.987073955', error '0.000000000'

Test #30:

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

input:

2764 12
0.0007

output:

2765.9373628498

result:

ok found '2765.937362850', expected '2765.937362850', error '0.000000000'

Test #31:

score: 0
Accepted
time: 0ms
memory: 2176kb

input:

2764 14
0.0007

output:

2765.9361767033

result:

ok found '2765.936176703', expected '2765.936176704', error '0.000000000'

Test #32:

score: 0
Accepted
time: 114ms
memory: 160384kb

input:

100000 1000000000
0.0001

output:

100010.0010001554

result:

ok found '100010.001000155', expected '100010.001000100', error '0.000000000'

Test #33:

score: 0
Accepted
time: 0ms
memory: 4580kb

input:

1 1000000000
0.5

output:

2.0000000000

result:

ok found '2.000000000', expected '2.000000000', error '0.000000000'

Test #34:

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

input:

50 50
0.25

output:

66.7341873337

result:

ok found '66.734187334', expected '66.734187334', error '0.000000000'

Test #35:

score: 0
Accepted
time: 0ms
memory: 2176kb

input:

40 100
0.5

output:

788.6331239663

result:

ok found '788.633123966', expected '788.633123966', error '0.000000000'

Test #36:

score: 0
Accepted
time: 0ms
memory: 2304kb

input:

40 160
0.5

output:

80.0000002552

result:

ok found '80.000000255', expected '80.000000255', error '0.000000000'

Test #37:

score: 0
Accepted
time: 0ms
memory: 2304kb

input:

40 162
0.5

output:

80.0000000982

result:

ok found '80.000000098', expected '80.000000098', error '0.000000000'

Test #38:

score: 0
Accepted
time: 0ms
memory: 4580kb

input:

40 1000000000
0.5

output:

80.0000000000

result:

ok found '80.000000000', expected '80.000000000', error '0.000000000'

Test #39:

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

input:

40 0
0.5000

output:

2199023255550.0000000000

result:

ok found '2199023255550.000000000', expected '2199023255550.000000000', error '0.000000000'

Test #40:

score: 0
Accepted
time: 0ms
memory: 1664kb

input:

40 1
0.5000

output:

1649267441663.0000000000

result:

ok found '1649267441663.000000000', expected '1649267441663.000000000', error '0.000000000'

Test #41:

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

input:

40 2
0.5000

output:

1236950581248.2500000000

result:

ok found '1236950581248.250000000', expected '1236950581248.250000000', error '0.000000000'

Test #42:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

40 3
0.5000

output:

962072674305.0000000000

result:

ok found '962072674305.000000000', expected '962072674305.000000000', error '0.000000000'

Test #43:

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

input:

40 4
0.5000

output:

738734374914.2187500000

result:

ok found '738734374914.218750000', expected '738734374914.218750000', error '0.000000000'

Test #44:

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

input:

40 5
0.5000

output:

575525617666.9531250000

result:

ok found '575525617666.953125000', expected '575525617666.953125000', error '0.000000000'

Test #45:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

40 10
0.5000

output:

173409304583.1325683594

result:

ok found '173409304583.132568359', expected '173409304583.132568359', error '0.000000000'

Test #46:

score: 0
Accepted
time: 1ms
memory: 3652kb

input:

40 15
0.5000

output:

55390502923.0735092163

result:

ok found '55390502923.073509216', expected '55390502923.073509216', error '0.000000000'

Test #47:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

40 20
0.5000

output:

18180087821.7474060059

result:

ok found '18180087821.747406006', expected '18180087821.747406006', error '0.000000000'

Test #48:

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

input:

40 25
0.5000

output:

5963269457.3187837601

result:

ok found '5963269457.318783760', expected '5963269457.318783760', error '0.000000000'

Test #49:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

40 30
0.5000

output:

2008652291.2097988129

result:

ok found '2008652291.209798813', expected '2008652291.209799051', error '0.000000000'

Test #50:

score: 0
Accepted
time: 0ms
memory: 1792kb

input:

40 35
0.5000

output:

676323760.7668039799

result:

ok found '676323760.766803980', expected '676323760.766804099', error '0.000000000'

Test #51:

score: 0
Accepted
time: 0ms
memory: 1920kb

input:

40 40
0.5000

output:

231036317.1178015471

result:

ok found '231036317.117801547', expected '231036317.117801577', error '0.000000000'

Test #52:

score: 0
Accepted
time: 0ms
memory: 1920kb

input:

40 45
0.5000

output:

79224360.2456898838

result:

ok found '79224360.245689884', expected '79224360.245689899', error '0.000000000'

Test #53:

score: 0
Accepted
time: 0ms
memory: 1920kb

input:

40 50
0.5000

output:

27134304.8508336060

result:

ok found '27134304.850833606', expected '27134304.850833610', error '0.000000000'

Test #54:

score: 0
Accepted
time: 0ms
memory: 1664kb

input:

2 1
0.0001

output:

2.0002000300

result:

ok found '2.000200030', expected '2.000200030', error '0.000000000'

Test #55:

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

input:

2 0
0.0001

output:

2.0003000400

result:

ok found '2.000300040', expected '2.000300040', error '0.000000000'

Test #56:

score: 0
Accepted
time: 0ms
memory: 1664kb

input:

2 2
0.0001

output:

2.0002000200

result:

ok found '2.000200020', expected '2.000200020', error '0.000000000'

Test #57:

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

input:

2 3
0.0001

output:

2.0002000200

result:

ok found '2.000200020', expected '2.000200020', error '0.000000000'

Test #58:

score: 0
Accepted
time: 26ms
memory: 51560kb

input:

100000 60
0.0002

output:

100020.2748384155

result:

ok found '100020.274838415', expected '100020.274838305', error '0.000000000'

Test #59:

score: 0
Accepted
time: 39ms
memory: 66560kb

input:

100000 80
0.0002

output:

100020.0040009101

result:

ok found '100020.004000910', expected '100020.004000800', error '0.000000000'

Test #60:

score: 0
Accepted
time: 49ms
memory: 82048kb

input:

100000 100
0.0002

output:

100020.0040009101

result:

ok found '100020.004000910', expected '100020.004000800', error '0.000000000'

Test #61:

score: 0
Accepted
time: 54ms
memory: 97792kb

input:

100000 120
0.0002

output:

100020.0040009101

result:

ok found '100020.004000910', expected '100020.004000800', error '0.000000000'

Test #62:

score: 0
Accepted
time: 75ms
memory: 113408kb

input:

100000 140
0.0002

output:

100020.0040009101

result:

ok found '100020.004000910', expected '100020.004000800', error '0.000000000'

Test #63:

score: 0
Accepted
time: 86ms
memory: 144640kb

input:

100000 180
0.0002

output:

100020.0040009101

result:

ok found '100020.004000910', expected '100020.004000800', error '0.000000000'

Test #64:

score: 0
Accepted
time: 30ms
memory: 47844kb

input:

100000 55
0.0002

output:

100070.8503283136

result:

ok found '100070.850328314', expected '100070.850328203', error '0.000000000'

Test #65:

score: 0
Accepted
time: 29ms
memory: 43008kb

input:

100000 50
0.0002

output:

103207.6841931964

result:

ok found '103207.684193196', expected '103207.684193091', error '0.000000000'

Extra Test:

score: 0
Extra Test Passed
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