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# Problem 44310. Digit concentration in Champernowne's constant

Solution 2623093

Submitted on 28 Jun 2020
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### Test Suite

Test Status Code Input and Output
1   Pass
d = 1; x = 1; y_correct = 1; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 1 concentration = 1

2   Pass
d = 10; x = 5; y_correct = 0.1000; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 10 concentration = 0.1000

3   Pass
d = 10; x = 1; y_correct = 0.2000; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 10 concentration = 0.2000

4   Pass
d = 20; x = 9; y_correct = 0.0500; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 20 concentration = 0.0500

5   Pass
d = 50; x = 0; y_correct = 0.0400; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 50 concentration = 0.0400

6   Pass
d = 50; x = 2; y_correct = 0.2600; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 50 concentration = 0.2600

7   Pass
d = 1000; x = 9; y_correct = 0.0670; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 1000 concentration = 0.0670

8   Fail
d = 1e4; x = 8; y_correct = 0.0747; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 9 concentration = 1.0000e-04

Assertion failed.

9   Fail
d = 1e5; x = 7; y_correct = 0.0864; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 11 concentration = 1.0000e-05

Assertion failed.

10   Fail
d = 1e6; x = 6; y_correct = 0.0935; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 13 concentration = 1.0000e-06

Assertion failed.

11   Fail
d = 1e6; x = 5; y_correct = 0.0937; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 13 concentration = 1.0000e-06

Assertion failed.

12   Fail
d = 2e6; x = 4; y_correct = 0.0903; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 14 concentration = 5.0000e-07

Assertion failed.

13   Fail
d = 2000124; x = 3; y_correct = 0.1162; assert(abs(digitCon(d,x)-y_correct) < 1e-4)

s = 0×0 empty char array m = 14 concentration = 4.9997e-07

Assertion failed.

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