Given a string, find all of its subsequences, which is also known as the power set.
{
"s": "ab"
}[
"",
"b",
"a",
"ab"
]{
"s": "abc"
}[
"",
"c",
"b",
"bc",
"a",
"ac",
"ab",
"abc"
]{
"s": "a"
}[
"",
"a"
]Sign in to Run Code and Submit