Cody

# Problem 44310. Digit concentration in Champernowne's constant

Solution 1342992

Submitted on 14 Nov 2017
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### Test Suite

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

Error using ^ One argument must be a square matrix and the other must be a scalar. Use POWER (.^) for elementwise power. Error in digitCon (line 5) lastFullNum=10^(nDig-1)+floor((d-nTotDigits)/nDig)-1; %last number appearing fully in sequence Error in Test1 (line 4) assert(abs(digitCon(d,x)-y_correct) < 1e-4)

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

Assertion failed.

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

Assertion failed.

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

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

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

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

Assertion failed.

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

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

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

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

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

Assertion failed.

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

Assertion failed.