在C++中更改某些数组值的符号

#include <iostream>

void changeArraySign(int arr[], int size) {
    for (int i = 0; i < size; i++) {
        arr[i] = -arr[i];
    }
}

int main() {
    int arr[] = {1, -2, 3, -4, 5};
    int size = sizeof(arr) / sizeof(arr[0]);

    std::cout << "原始数组：";
    for (int i = 0; i < size; i++) {
        std::cout << arr[i] << " ";
    }
    std::cout << std::endl;

    changeArraySign(arr, size);

    std::cout << "更改符号后的数组：";
    for (int i = 0; i < size; i++) {
        std::cout << arr[i] << " ";
    }
    std::cout << std::endl;

    return 0;
}