Code360 powered by Coding Ninjas X Naukri.com. Code360 powered by Coding
Ninjas X Naukri.com

Problem of the day

Given two variables ‘X’ and ‘Y’. Your task is to swap the number without using a temporary variable or third variable.

Swap means the value of ‘X’ and ‘Y’ must be interchanged. Take an example ‘X’ is 10 and ‘Y’ is 20 so your function must return ‘X’ as a 20 and ‘Y’ as a 10.

Detailed explanation

```
The first line of input contains an integer ‘T’ denoting the number of test cases.
Next ‘T’ lines contain two space-separated integers ‘X’ and ‘Y’ which represent the next ‘T’ test cases.
```

```
For each test case, return an array/vector that contains two integers ‘X’ and ‘Y’ with a swapped value.
```

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

```
1 <= T <= 2*10^5
-10^9 <= X,Y <= 10^9
Where ‘T’ is the total number of test cases, ‘X’ and ‘Y’ denotes two given integer variables.
Time limit: 1 second
```

```
2
10 12
-4 -5
```

```
12 10
-5 -4
```

```
Test Case 1:
Given ‘X’ is 10 and ‘Y’ is 12. After swapping ‘X’ will be 12 and ‘Y’ will be 10.
Test Case 2:
Given ‘X’ is -1 and ‘Y’ is -5. After swapping ‘X’ will be -5 and ‘Y’ will be -4.
```

```
2
1 2
0 -5
```

```
2 1
-5 0
```