Given a number n, how to perform atmost k swap operations on number's digits to get the largest number. Ex- n=7899, k=2 ans=9987
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do you mean if number is say 12345 and swaps = 2 , then find largest number ? your question format is very bad
yeah
Auto comment: topic has been updated by code_fille (previous revision, new revision, compare).
Doesn't it look like bruteforce? I mean the for n <= 10^18, and k small enough (does big K even make sense?)