菜学C++ Day14

今天只刷了题目，感觉昨天前天的额题目还是我学了数组再去看看吧

今天的题主要是循环，很基础，就练练手吧

#include
using namespace std;
int main() {
    int n, k = 0, s = 0;
    cin >> n;
    for (int i = 1; i <= n; i++) {
        if (i % 2 == 0 && i % 3 != 0) {
            k++;
            s += i;
        }
    }
    cout << k << endl << s << endl;
    return 0;
}

#include
using namespace std;
int main() {
    int n,i=1, s=0;
    cin >> n;
    for (; i <= n; i += 2)
        s += i;
    cout << s << endl;
    return 0;
}