Cody

Problem 42497. Pancake sorting

Solution 2450459

Submitted on 1 Jun 2020
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   Fail
x = 1:5; for spatula = sort_pancakes(x) x(1:spatula) = flip(x(1:spatula)); end assert(issorted(x))

t = 1 5 4 3 2 t = 1 4 3 2 part1 = 1 part2 = 2 3 4 5 stack = 1 2 3 4 5 y = 1 part1 = 4 3 2 1 part2 = 5 stack = 4 3 2 1 5 y = 1 4 part1 = 3 4 part2 = 2 1 5 stack = 3 4 2 1 5 y = 1 4 2

Assertion failed.

2   Fail
x = [6 4 2 5 3 1]; for spatula = sort_pancakes(x) x(1:spatula) = flip(x(1:spatula)); end assert(issorted(x))

t = 1 6 5 4 3 2 t = 1 5 4 3 2 part1 = 1 3 5 2 4 6 part2 = 1×0 empty double row vector stack = 1 3 5 2 4 6 y = 6 part1 = 5 3 1 part2 = 2 4 6 stack = 5 3 1 2 4 6 y = 6 3 part1 = 4 2 1 3 5 part2 = 6 stack = 4 2 1 3 5 6 y = 6 3 5 part1 = 3 1 2 4 part2 = 5 6 stack = 3 1 2 4 5 6 y = 6 3 5 4

Assertion failed.

3   Fail
x = randperm(12); for spatula = sort_pancakes(x) x(1:spatula) = flip(x(1:spatula)); end assert(issorted(x))

t = 1 12 11 10 9 8 7 6 5 4 3 2 t = 1 11 10 9 8 7 6 5 4 3 2 part1 = 1 11 2 5 part2 = 4 10 6 12 8 9 7 3 stack = 1 11 2 5 4 10 6 12 8 9 7 3 y = 4 part1 = 11 1 part2 = 2 5 4 10 6 12 8 9 7 3 stack = 11 1 2 5 4 10 6 12 8 9 7 3 y = 4 2 part1 = 10 4 5 2 1 11 part2 = 6 12 8 9 7 3 stack = 10 4 5 2 1 11 6 12 8 9 7 3 y = 4 2 6 part1 = 9 8 12 6 11 1 2 5 4 10 part2 = 7 3 stack = 9 8 12 6 11 1 2 5 4 10 7 3 y = 4 2 6 10 part1 = 8 9 part2 = 12 6 11 1 2 5 4 10 7 3 stack = 8 9 12 6 11 1 2 5 4 10 7 3 y = 4 2 6 10 2 part1 = 7 10 4 5 2 1 11 6 12 9 8 part2 = 3 stack = 7 10 4 5 2 1 11 6 12 9 8 3 y = 4 2 6 10 2 11 part1 = 6 11 1 2 5 4 10 7 part2 = 12 9 8 3 stack = 6 11 1 2 5 4 10 7 12 9 8 3 y = 4 2 6 10 2 11 8 part1 = 5 2 1 11 6 part2 = 4 10 7 12 9 8 3 stack = 5 2 1 11 6 4 10 7 12 9 8 3 y = 4 2 6 10 2 11 8 5 part1 = 4 6 11 1 2 5 part2 = 10 7 12 9 8 3 stack = 4 6 11 1 2 5 10 7 12 9 8 3 y = 4 2 6 10 2 11 8 5 6 part1 = 3 8 9 12 7 10 5 2 1 11 6 4 part2 = 1×0 empty double row vector stack = 3 8 9 12 7 10 5 2 1 11 6 4 y = 4 2 6 10 2 11 8 5 6 12

Assertion failed.

4   Fail
x = randperm(13); for spatula = sort_pancakes(x) x(1:spatula) = flip(x(1:spatula)); end assert(issorted(x))

t = 1 13 12 11 10 9 8 7 6 5 4 3 2 t = 1 12 11 10 9 8 7 6 5 4 3 2 part1 = 1 9 7 5 2 4 10 12 3 part2 = 6 8 13 11 stack = 1 9 7 5 2 4 10 12 3 6 8 13 11 y = 9 part1 = 12 10 4 2 5 7 9 1 part2 = 3 6 8 13 11 stack = 12 10 4 2 5 7 9 1 3 6 8 13 11 y = 9 8 part1 = 11 13 8 6 3 1 9 7 5 2 4 10 12 part2 = 1×0 empty double row vector stack = 11 13 8 6 3 1 9 7 5 2 4 10 12 y = 9 8 13 part1 = 10 4 2 5 7 9 1 3 6 8 13 11 part2 = 12 stack = 10 4 2 5 7 9 1 3 6 8 13 11 12 y = 9 8 13 12 part1 = 9 7 5 2 4 10 part2 = 1 3 6 8 13 11 12 stack = 9 7 5 2 4 10 1 3 6 8 13 11 12 y = 9 8 13 12 6 part1 = 8 6 3 1 10 4 2 5 7 9 part2 = 13 11 12 stack = 8 6 3 1 10 4 2 5 7 9 13 11 12 y = 9 8 13 12 6 10 part1 = 7 5 2 4 10 1 3 6 8 part2 = 9 13 11 12 stack = 7 5 2 4 10 1 3 6 8 9 13 11 12 y = 9 8 13 12 6 10 9 part1 = 6 3 1 10 4 2 5 7 part2 = 8 9 13 11 12 stack = 6 3 1 10 4 2 5 7 8 9 13 11 12 y = 9 8 13 12 6 10 9 8 part1 = 5 2 4 10 1 3 6 part2 = 7 8 9 13 11 12 stack = 5 2 4 10 1 3 6 7 8 9 13 11 12 y = 9 8 13 12 6 10 9 8 7 part1 = 4 2 5 part2 = 10 1 3 6 7 8 9 13 11 12 stack = 4 2 5 10 1 3 6 7 8 9 13 11 12 y = 9 8 13 12 6 10 9 8 7 3 part1 = 3 1 10 5 2 4 part2 = 6 7 8 9 13 11 12 stack = 3 1 10 5 2 4 6 7 8 9 13 11 12 y = 9 8 13 12 6 10 9 8 7 3 6

Assertion failed.

5   Fail
for k = 1:20 x = randperm(k); for spatula = sort_pancakes(x) x(1:spatula) = flip(x(1:spatula)); end assert(issorted(x)) end

t = 1

Matrix index is out of range for deletion. Error in sort_pancakes (line 4) t(2)=[] Error in Test5 (line 3) for spatula = sort_pancakes(x)