C++题解

AC代码

#include <iostream>
#include <vector>
using namespace std;

int main() {
	vector<int> a(10);
	for (int i = 0; i < 10; ++i) {
		cin >> a[i];
	}
	int n, ans = 0;
	cin >> n;
	for (int i = 0; i < 10; ++i) {
		if (a[i] <= n + 30) {
			++ans;
		}
	}
	cout << ans << endl;
	return 0;
}