Cody

# Problem 47. Extract leading non-zero digit

Solution 1883545

Submitted on 25 Jul 2019 by Ivo Georgiev
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### 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))

y = '[10000000000 2300000000 3400000000 500000 46666400 55500000 100000000 13453400000000]' idx = 2 14 25 36 43 52 61 71 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))

y = '[5700000000 20000000 891300000000 6300000000 83812700]' idx = 2 13 22 35 46 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))

y = '[43360000 34260000 357840000 276940000 134990000]' idx = 2 11 20 30 40 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))

y = '[30000000 10000000 2 50000000 200000]' idx = 2 11 20 22 31 y = 3 1 2 5 2