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Posted: 27 Feb, 2021

Difficulty: Moderate

```
‘ARR1’ = [3 6 9 0 0]
‘ARR2’ = [4 10]
After merging the ‘ARR1’ and ‘ARR2’ in ‘ARR1’.
‘ARR1’ = [3 4 6 9 10]
```

```
The first line of input contains an integer ‘T’ which denotes the number of test cases or queries to be run. Then the test cases follow.
The first line of each test case contains two space-separated integers ‘M’ and ‘N’, which represent the size of ‘ARR1’ and ‘ARR2’.
The next lines of each test case contain ‘M’ space-separated integers and ‘N’ zeros (i.e. 0) which represent the number of elements in ‘ARR1’.
The next lines of each test case contain ‘N’ space-separated integers which represent the number of elements in ‘ARR2’.
```

```
For each test case, return the ‘ARR1’ after merging.
Print the output of each test case in a separate line.
```

```
You do not need to print anything; it has already been taken care of. Just implement the given function.
```

```
1 <= ‘T’ <= 100
1 <= ‘M’, ‘N’ <= 5000
1 <= ‘ARR1[i], ARR2[i]’ <= 100000
Time Limit: 1 second
```

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