#316. oneTwo
oneTwo
Background
Description
Given a string, compute a new string by moving the first char to come after the next two chars, so "abc" yields "bca". Repeat this process for each subsequent group of 3 chars, so "abcdef" yields "bcaefd". Ignore any group of fewer than 3 chars at the end.
Format
Input
Output
Samples
abc
"bca"
tca
"cat"
tcagdo
"catdog"
Limitation
1s, 1024KiB for each test case.