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Problem

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Solution

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1

Difficulty: EASY

Avg. time to solve

10 min

Success Rate

90%

Problem Statement

Suggest Edit

```
The first line of the input contains an integer ‘T’ denoting the number of test cases.
The first line of each test case contains two space-separated positive integers ‘N’ and ‘K’ denoting the number of the elements present in the array and count of the largest elements you need to return as the answer respectively.
The second line of each test case contains ‘N’ space-separated integers denoting the elements of the array.
```

```
The only line of output of each test case should contain ‘K’ largest elements in the array in non-decreasing order.
```

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

```
Can you solve this in less than O(NlogN) time complexity?
```

```
1 <= T <= 100
1 <= N <= 10^4
1<= K <= N
-10^9 <= A[i] <= 10^9
Where ‘T’ is the number of test cases, ‘N’ is the size of the array, ‘K’ is the number of elements you need to return as an answer and A[i] is the size of the array of elements.
Time Limit: 1 sec
```

```
2
4 2
3 4 2 1
5 1
2 2 3 3 1
```

```
3 4
3
```

```
Test case 1:
If we sort the array then it will look like: [1, 2, 3, 4]. The 2 largest elements will be [3, 4].
Test case 2:
If we sort the array then it will look like: [1, 2, 2, 3, 3]. Then the largest element will be [3].
```

```
2
5 5
0 10 1 2 2
6 2
-2 12 -1 1 20 1
```

```
0 1 2 2 10
12 20
```

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