Question

How to get unique values from two arrays in C++

Answer 1

#include <vector>
#include <iostream>
#include <algorithm>

std::vector<int> get_unique_values(const std::vector<int>& arr1, const std::vector<int>& arr2) {
    std::vector<int> result;
    
    std::set_symmetric_difference(arr1.begin(), arr1.end(), arr2.begin(), arr2.end(), std::back_inserter(result));
    
    return result;
}

int main() {
    std::vector<int> arr1 = {1, 3, 6, 8, 12, 90};
    std::vector<int> arr2 = {2, 3, 5, 6, 7, 8, 96};

    std::vector<int> result = get_unique_values(arr1, arr2);

    for (int val : result) {
        std::cout << val << " ";
    }
}

 
 
/*
run:
 
1 2 5 7 12 90 96 
 
*/

 

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