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Implement different operations on a vector A .

**Input:**

The first line of input contains an integer **T** denoting the no of test cases . Then T test cases follow. The first line of input contains an integer **Q** denoting the no of queries . Then in the next line are **Q** space separated queries .

A query can be of five types

1. a x (Adds an element x to the vector A at the end )

2. b (Sorts the vector A in ascending order )

3. c (Reverses the vector A)

4. d (prints the size of the vector)

5. e (prints space separated values of the vector)

5. f (Sorts the vector A in descending order)

**Output:**

The output for each test case will be space separated integers denoting the results of each query .

**Constraints:**

1<=T<=100

1<=Q<=100

**Example:**

**Input**

2

6

a 4 a 6 a 7 b c e

4

a 55 a 11 d e

**
Output**

7 6 4

2 55 11

For the first test case

There are six queries. Queries are performed in this order

1. a 4 { Vector has 4 }

2. a 7 {vector has 7 }

3. a 6 {vector has 6}

4. b {sorts the vector in ascending order, vector now is 5 6 7}

5. c {reverse the vector }

6. e {prints the element of the vectors 7 6 4}

There are four queries. Queries are performed in this order

1. a 55 (vector A has 55}

2. a 11 (vector A has 55 ,11}

3. d (prints the size of the vector A ie. 2 )

4. e (prints the elements of the vector A ie 55 11)

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C++ STL | Set 1 (vector)

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