[Solution] Make all equal using Pairs Codechef Solution

[Solution] Make all equal using Pairs Codechef Solution

Chef has an array A$A$ of length N$N$.

In one operation, Chef can choose any two distinct indices i,j$i,j$ (1≤i,j≤N,i≠j)$(1\le i,j\le N,i\ne j)$ and either change Ai$A_i$ to Aj$A_j$ or change Aj$A_j$ to Ai$A_i$.

Find the minimum number of operations required to make all the elements of the array equal.

Input Format

• First line will contain T$T$, number of test cases. Then the test cases follow.
• First line of each test case consists of an integer N$N$ - denoting the size of array A$A$.

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• Second line of each test case consists of N$N$ space-separated integers A1,A2,…,AN$A_1,A_2,\dots ,A_N$ - denoting the array A$A$.

Output Format

For each test case, output the minimum number of operations required to 

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make all the elements equal.

Constraints

• 1≤T≤100$1\le T\le 100$
• 2≤N≤1000$2\le N\le 1000$