Cody

# Problem 47. Extract leading non-zero digit

Solution 1125114

Submitted on 17 Feb 2017 by Jihye Sofia Seo
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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))

d = 1 0 0 loc = 1 loc = 1 d = 1 d = 2 3 loc = 1 2 loc = 1 d = 2 d = -3 3 4 loc = 2 3 loc = 2 d = 3 d = 0 -2 0 0 5 loc = 5 loc = 5 d = 5 d = -3 0 -2 4 6 6 6 6 loc = 4 5 6 7 8 loc = 4 d = 4 d = -3 0 -2 5 5 5 loc = 4 5 6 loc = 4 d = 5 d = 1 loc = 1 loc = 1 d = 1 d = 1 3 4 5 3 4 loc = 1 2 3 4 5 6 loc = 1 d = 1 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))

d = 5 7 loc = 1 2 loc = 1 d = 5 d = -3 0 -2 2 loc = 4 loc = 4 d = 2 d = 8 9 1 3 loc = 1 2 3 4 loc = 1 d = 8 d = -3 6 3 loc = 2 3 loc = 2 d = 6 d = 0 -2 8 3 8 1 3 loc = 3 4 5 6 7 loc = 3 d = 8 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))

d = -3 0 -2 4 3 3 6 loc = 4 5 6 7 loc = 4 d = 4 d = 0 -2 3 4 2 6 loc = 3 4 5 6 loc = 3 d = 3 d = 3 -2 5 7 8 4 loc = 1 3 4 5 6 loc = 1 d = 3 d = 2 -2 7 6 9 4 loc = 1 3 4 5 6 loc = 1 d = 2 d = -3 1 -2 3 4 9 9 loc = 2 4 5 6 7 loc = 2 d = 1 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))

d = 0 -2 3 loc = 3 loc = 3 d = 3 d = -3 0 -2 1 loc = 4 loc = 4 d = 1 d = -3 2 53 -3 0 8 loc = 2 6 loc = 2 d = 2 d = 0 -2 5 loc = 3 loc = 3 d = 5 d = 0 -2 0 0 2 loc = 5 loc = 5 d = 2 y = 3 1 2 5 2