Problem 288. Construct a string from letters and counts

Solution 2077248

Submitted on 2 Jan 2020 by Asif Newaz

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Test	Status	Code Input and Output
1	Pass	x = []; y = []; y_correct = 'ERROR'; assert(isequal(construct_string(x,y),y_correct))
2	Pass	x = [-1]; y = ['a']; y_correct = 'ERROR'; assert(isequal(construct_string(x,y),y_correct))
3	Pass	x = ['a']; y = [5]; y_correct = 'ERROR'; assert(isequal(construct_string(x,y),y_correct)) out = 'ERROR'
4	Pass	r = 10+randi(20); x = [r 1]; y = 'ab'; y_correct(1:r) = 'a'; y_correct(r+1) = 'b'; assert(isequal(construct_string(x,y),y_correct)) a = 'aaaaaaaaaaaaaaaaaaaaaaaaaaa' out = 'aaaaaaaaaaaaaaaaaaaaaaaaaaa' a = 'b' out = 'aaaaaaaaaaaaaaaaaaaaaaaaaaab'
5	Pass	x = [5 4 3 2 1]; y = '.#4a5'; y_correct = '.....####444aa5'; assert(isequal(construct_string(x,y),y_correct)) a = '.....' out = '.....' a = '####' out = '.....####' a = '444' out = '.....####444' a = 'aa' out = '.....####444aa' a = '5' out = '.....####444aa5'
6	Pass	x1 = [1 1 1 1 1 1]; y = 'banana'; assert(isequal(construct_string(x1,y),y)) a = 'b' out = 'b' a = 'a' out = 'ba' a = 'n' out = 'ban' a = 'a' out = 'bana' a = 'n' out = 'banan' a = 'a' out = 'banana'