Cody

# Problem 47. Extract leading non-zero digit

Solution 2010411

Submitted on 8 Nov 2019 by Romain Demory
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Pass
x = [100 23 -34 0.005 -0.466664 -0.555 1 134534]; y_correct = [1 2 3 5 4 5 1 1]; assert(isequal(leadingDigit(x),y_correct))

str = '100' y = 1 str = '23' y = 1 2 str = '-34' y = 1 2 3 str = '0.005' y = 1 2 3 5 str = '-0.46666' y = 1 2 3 5 4 str = '-0.555' y = 1 2 3 5 4 5 str = '1' y = 1 2 3 5 4 5 1 str = '134534' y = 1 2 3 5 4 5 1 1

2   Pass
x = [57 -0.2 8913 -63 0.838127]; y_correct = [5 2 8 6 8]; assert(isequal(leadingDigit(x),y_correct))

str = '57' y = 5 str = '-0.2' y = 5 2 str = '8913' y = 5 2 8 str = '-63' y = 5 2 8 6 str = '0.83813' y = 5 2 8 6 8

3   Pass
x = [-0.4336 0.3426 3.5784 2.7694 -1.3499]; y_correct = [4 3 3 2 1]; assert(isequal(leadingDigit(x),y_correct))

str = '-0.4336' y = 4 str = '0.3426' y = 4 3 str = '3.5784' y = 4 3 3 str = '2.7694' y = 4 3 3 2 str = '-1.3499' y = 4 3 3 2 1

4   Pass
x = [0.3000 -0.1 -0.00000002 0.5 0.002]; y_correct = [3 1 2 5 2]; assert(isequal(leadingDigit(x),y_correct))

str = '0.3' y = 3 str = '-0.1' y = 3 1 str = '-2e-08' y = 3 1 2 str = '0.5' y = 3 1 2 5 str = '0.002' y = 3 1 2 5 2