2 2 965166677
6 0 4 2 4 2 3 3 There exist $6$ amazing arrays: * $[1, 1, 1, 1]$ ー can be split into $[b_1, b_2], [b_3, b_4]$. * $[1, 1, 1, 2]$ ー can be split into $[b_1, b_2], [b_3, b_4]$. * $[1, 2, 1, 1]$ ー can be split into $[b_1, b_2], [b_3, b_4]$. * $[1, 2, 1, 2]$ ー can be split into $[b_1, b_2], [b_3, b_4]$. * $[1, 1, 2, 1]$ ー can be split into $[b_1, b_3], [b_2, b_4]$. * $[1, 1, 2, 2]$ ー can be split into $[b_1, b_3], [b_2, b_4]$.
{
"problem": {
"name": "Creative Splitting",
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"content": "You are given integers $N$ and $K$. Let's call an integer array $a=[a_1, a_2, \\ldots, a_K]$ of length $K$ **good**, if $1 \\le a_i \\le i$ for all $1 \\le i \\le K$. Let's call an integer array $b=[b_1, b",
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"statements": [
{
"statement_type": "Markdown",
"content": "You are given integers $N$ and $K$.\nLet's call an integer array $a=[a_1, a_2, \\ldots, a_K]$ of length $K$ **good**, if $1 \\le a_i \\le i$ for all $1 \\le i \\le K$.\nLet's call an integer array $b=[b_1, b...",
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