#306. xyBalance
xyBalance
Background
Description
We'll say that a String is xy-balanced if for all the 'x' chars in the string, there exists a 'y' char somewhere later in the string. So "xxy" is balanced, but "xyx" is not. One 'y' can balance multiple 'x's. Return true if the given string is xy-balanced.
Format
Input
Output
Samples
aaxbby
true
aaxbb
false
yaaxbb
false
Limitation
1s, 1024KiB for each test case.