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// 04-absolute3.cpp : modify a parameter to become its absolute value

#include <iostream>

using namespace std;

void abs_value(int& v) {

if (v < 0) {

v = -v;

}

}

int main() {

int value{};

cout << "Please enter a positive or negative integer: ";

cin >> value;

abs_value(value);

cout << "The absolute value is: " << value << '\n';

}