Generate all subsequences of text1 and check which appear in text2.
A string of length has subsequences. Checking each in text2 takes time.
Total: . Way too slow.
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##### ###### ##### ### # # ### # # ###### ## ## ## ## ## ## ## # # # # # ## ##### #### ##### # # # # # # # #### ## # ## ## ## ## # # # # # ## ## # ###### ## ### # ### # ######
The trap
Generate all subsequences of text1 and check which appear in text2.
A string of length has subsequences. Checking each in text2 takes time.
Total: . Way too slow.