mirror of https://github.com/01-edu/public.git
feat(findspairs): new exam exercise
This commit is contained in:
parent
9969456e93
commit
74cbc9fb07
|
@ -0,0 +1,32 @@
|
|||
## Find Pairs with Sum
|
||||
|
||||
### Instructions
|
||||
|
||||
Write a program that finds all pairs of elements in an integer array that sum up to a given target value. The program should output a list of pairs, each representing the indices of the elements that form the pair.
|
||||
|
||||
In this exercise you must take in consideration the following:
|
||||
|
||||
- Ensure its possible to have positive or negative integers in the array
|
||||
- Ensure each element is used only once in a pair
|
||||
- Allow for multiple pairs to sum up to the target value
|
||||
- Return the message "No pairs found." when no pair is present
|
||||
- Return the message "Invalid target sum." if the target is invalid
|
||||
- Return the message "Invalid number." if the number in the array is invalid
|
||||
|
||||
Let's consider the input `arr = [1, 2, 3, 4, 5]` and the target sum `targetSum = 6`. When we run the program, the `findPairs()` function will search for pairs in the array that sum up to `targetSum`.
|
||||
|
||||
The expected output for this input will be:
|
||||
|
||||
```console
|
||||
$ go run . "[1, 2, 3, 4, 5]" "6"
|
||||
Pairs with sum 6: [[0 4] [1 3]]
|
||||
$ go run . "[-1, 2, -3, 4, -5]" "1"
|
||||
Pairs with sum 1: [[0 1] [2 3]]
|
||||
$ go run . "[1, 2, 3, 4, 5]" "10"
|
||||
No pairs found.
|
||||
$ go run . "[1, 2, 3, 4, 20, -4, 5]" "2 5"
|
||||
Invalid target sum.
|
||||
$ go run . "[1, 2, 3, 4, 20, p, 5]" "5"
|
||||
Invalid number: p
|
||||
$
|
||||
```
|
Loading…
Reference in New Issue