QuadradS

// Given n pairs of parentheses, write a function to generate all combinations of well-formed parentheses.

// Example 1:

// Input: n = 3
// Output: ["((()))","(()())","(())()","()(())","()()()"]
// Example 2:

// Input: n = 1
// Output: ["()"]

QuadradS

#[derive(Accounts)]
pub struct SendBack<'info> {
    #[account(
        mut,
        seeds = [constants::CONFIG_ACCOUNT_SEED.as_bytes()],
        bump
    )]
    /// CHECK only read
    sender: AccountInfo<'info>,
    #[account(mut)]