qfedu-basic-level/day9/d4.cpp

// 判断给定的整数是否为偶数
#include <iostream>

using namespace std;

int isEven(int n)
{
    if (n % 2 == 0)
        return 1;
    return 0;
}

int main()
{
    int n;
    cout << "请输入一个整数：";
    cin >> n;
    if (isEven(n))
        cout << "是偶数" << endl;
    else
        cout << "不是偶数" << endl;

    return 0;
}