Cody

# Problem 1259. It's race time again! Write a function that is at least twice as fast as the test suite call of repmat().

Solution 1658447

Submitted on 25 Oct 2018 by li haitao
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 = 1.7; m = 197; n = 535; tic y_correct = repmat(x, m, n); t_repmat = toc tic y_myrepmat = my_repmat(x, m, n); t_myrepmat = toc assert(isequal(y_myrepmat,y_correct) && t_myrepmat < t_repmat/2)

t_repmat = 5.0100e-04 Elapsed time is 0.001244 seconds. t_myrepmat = 6.4000e-05

2   Pass
x = -0.3; m = 1; n = 5350; tic y_correct = repmat(x, m, n); t_repmat = toc tic y_myrepmat = my_repmat(x, m, n); t_myrepmat = toc assert(isequal(y_myrepmat,y_correct) && t_myrepmat < t_repmat/2)

t_repmat = 1.2300e-04 Elapsed time is 0.000093 seconds. t_myrepmat = 5.3000e-05

3   Pass
x = 0; m = 14; n = 5350; tic y_correct = repmat(x, m, n); t_repmat = toc tic y_myrepmat = my_repmat(x, m, n); t_myrepmat = toc assert(isequal(y_myrepmat,y_correct) && t_myrepmat < t_repmat)

t_repmat = 2.0100e-04 Elapsed time is 0.000093 seconds. t_myrepmat = 3.1000e-05