HBC229301排列式,语言题Character Distance题解

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You are given an array aaa of length nnn and you need to rearrange the array to satisfy that there exists at least one number xxx that appears at least once in the array and for each pair i,j(1≤i

You are given an array aaa of length nnn and you need to rearrange the array to satisfy that there exists at least one number xxx that appears at least once in the array and for each pair i,j (1≤i

标签： HBC229301排列式 语言题Character Distance题解