# Plagiarism solution codechef

## Plagiarism solution codechef

You are an administrator of a popular quiz website. Every day, you hold a quiz on the website.

There are NN users (numbered 11 through NN) and MM admins (numbered N+1N+1 through N+MN+M). For each quiz, each user is allowed to attempt it at most once. Sometimes, admins attempt the quizzes for testing purposes too; an admin may attempt a quiz any number of times.

On a certain day, the quiz was attempted KK times. For each ii (1iK1≤i≤K), the ii-th of these attempts was made by the person with number LiLi. Find all the users who attempted the quiz more than once, in order to disqualify them.

### Input Plagiarism solution codechef

• The first line of the input contains a single integer TT denoting the number of test cases. The description of TT test cases follows.
• The first line of each test case contains three space-separated integers NNMM and KK.
• The second line contains KK space-separated integers L1,L2,,LKL1,L2,…,LK.

### Output Plagiarism solution codechef

For each test case, print a single line containing an integer DD denoting the number of users who should be disqualified, followed by a space and DD space-separated integers denoting their numbers in ascending order.

### Constraints Plagiarism solution codechef

• 1T101≤T≤10
• 0N,M1050≤N,M≤105
• 1N+M,K1051≤N+M,K≤105
• 1LiN+M1≤Li≤N+M for each valid ii

### Example Input Plagiarism solution codechef

3
1 1 1
1
1 1 2
1 1
5 5 10
2 5 2 5 2 4 10 10 10 10


### Example Output Plagiarism solution codechef

0
1 1
2 2 5


### Explanation Plagiarism solution codechef

Example case 1: Since there is only a single attempt during the whole day, there cannot be any user who made more than one attempt.

Example case 2: User 11 attempted the quiz twice.

Example case 3: Users 22 and 55 attempted the quiz multiple times. The admin with number 1010 also attempted the quiz multiple times, but admins are allowed to do that.

# SOLUTION

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