triple_up¶

Return true if the list contains, somewhere, three increasing adjacent numbers like …. 4, 5, 6, … or 23, 24, 25.

This exercise was taken from codingbat.com and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.

Test 1¶

Input:

[1, 4, 5, 6, 2]

Output:

True

Test 2¶

Input:

[1, 2, 3]

Output:

True

Test 3¶

Input:

[1, 2, 4]

Output:

False

Test 4¶

Input:

[1, 2, 4, 5, 7, 6, 5, 6, 7, 6]

Output:

True

Test 5¶

Input:

[1, 2, 4, 5, 7, 6, 5, 7, 7, 6]

Output:

False

Test 6¶

Input:

[1, 2]

Output:

False

Test 7¶

Input:

[1]

Output:

False

Test 8¶

Input:

[]

Output:

False

Test 9¶

Input:

[10, 9, 8, -100, -99, -98, 100]

Output:

True

Test 10¶

Input:

[10, 9, 8, -100, -99, 99, 100]

Output:

False

Test 11¶

Input:

[-100, -99, -99, 100, 101, 102]

Output:

True

Test 12¶

Input:

[2, 3, 5, 6, 8, 9, 2, 3]

Output:

False