C++向量减法

#include <iostream>
#include <vector>

std::vector<int> vectorSubtraction(const std::vector<int>& vec1, const std::vector<int>& vec2) {
    std::vector<int> result;
    
    // 检查两个向量的大小是否相等
    if (vec1.size() != vec2.size()) {
        std::cout << "Error: Vector sizes do not match." << std::endl;
        return result;
    }
    
    // 逐个元素进行减法运算
    for (size_t i = 0; i < vec1.size(); ++i) {
        result.push_back(vec1[i] - vec2[i]);
    }
    
    return result;
}

int main() {
    std::vector<int> vec1 = {1, 2, 3};
    std::vector<int> vec2 = {4, 5, 6};
    
    std::vector<int> result = vectorSubtraction(vec1, vec2);
    
    // 输出结果
    for (const auto& num : result) {
        std::cout << num << " ";
    }
    std::cout << std::endl;
    
    return 0;
}