plus_out¶

Given a string and a non-empty word string, return a version of the original String where all chars have been replaced by pluses (“+”), except for appearances of the word string which are preserved unchanged.

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:

'12xy34'
'xy'

Output:

'++xy++'

Test 2¶

Input:

'12xy34'
'1'

Output:

'1+++++'

Test 3¶

Input:

'12xy34xyabcxy'
'xy'

Output:

'++xy++xy+++xy'

Test 4¶

Input:

'abXYabcXYZ'
'ab'

Output:

'ab++ab++++'

Test 5¶

Input:

'abXYabcXYZ'
'abc'

Output:

'++++abc+++'

Test 6¶

Input:

'abXYabcXYZ'
'XY'

Output:

'++XY+++XY+'

Test 7¶

Input:

'abXYxyzXYZ'
'XYZ'

Output:

'+++++++XYZ'

Test 8¶

Input:

'--++ab'
'++'

Output:

'++++++'

Test 9¶

Input:

'aaxxxxbb'
'xx'

Output:

'++xxxx++'

Test 10¶

Input:

'123123'
'3'

Output:

'++3++3'