C++中整型列表与给定整型的有效比较

#include <iostream>
#include <vector>

bool isIntegerValid(const std::vector<int>& integerList, int targetInteger) {
    for (int i = 0; i < integerList.size(); i++) {
        if (integerList[i] == targetInteger) {
            return true; // 给定整型在列表中有效
        }
    }
    return false; // 给定整型在列表中无效
}

int main() {
    std::vector<int> integerList = {1, 2, 3, 4, 5};
    int targetInteger = 3;

    if (isIntegerValid(integerList, targetInteger)) {
        std::cout << "给定整型在列表中有效" << std::endl;
    } else {
        std::cout << "给定整型在列表中无效" << std::endl;
    }

    return 0;
}