题解 | 小红打怪

#include<bits/stdc++.h>
using namespace std;
int main() {
	int a, l, r;
	cin >> a >> l >> r;
	int ans;
	if (a % r != 0 && a > l)ans = a / r + 1;
	else if (a % r == 0)ans = a / r;
	else {
		cout << "1";
		return 0;
	}
	cout << ans;
	return 0;
}