Cody

Problem 1394. Prime Ladders

Solution 3048256

Submitted on 3 Oct 2020 by Augusto Mazzei
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Test Suite

Test Status Code Input and Output
1   Pass
p1 = 13; p2 = 29; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 1 pat = 1×3 string array "13" "19" "29"

2   Pass
p1 = 389; p2 = 269; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 2 pat = 1×5 string array "389" "383" "283" "263" "269"

3   Pass
p1 = 761; p2 = 397; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 2 pat = 1×5 string array "761" "461" "467" "367" "397"

4   Pass
p1 = 983; p2 = 239; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 2 pat = 1×4 string array "983" "283" "233" "239"

5   Pass
p1 = 271; p2 = 439; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 2 pat = 1×6 string array "271" "211" "311" "331" "431" "439"

6   Pass
p1 = 877; p2 = 733; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 2 pat = 1×5 string array "877" "677" "673" "773" "733"

7   Pass
p1 = 2267; p2 = 1153; ladder = prime_ladder(p1,p2); assert(all(isprime(ladder))) assert(iscolumn(ladder)) assert(ladder(1)==p1) assert(ladder(end)==p2) assert(all(sum(diff(num2str(ladder))~=0,2)==1))

n = 3 pat = 1×7 string array "2267" "2207" "2203" "2003" "2053" "2153" "1153"

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