[백준] 5532번 : 방학 숙제 - C#

https://www.acmicpc.net/problem/5532

using System;

class Program
{
    static void Main() {
        string s=Console.ReadLine();
        int l=int.Parse(s);
        string s1=Console.ReadLine();
        int a=int.Parse(s1);
        string s2=Console.ReadLine();
        int b=int.Parse(s2);
        string s3=Console.ReadLine();
        int c=int.Parse(s3);
        string s4=Console.ReadLine();
        int d=int.Parse(s4);
        int sum=0;
        int sum1=0;
        if(a%c==0) sum=a/c;
        else sum=a/c+1;
        if(b%d==0) sum1=b/d;
        else sum1=b/d+1;
        Console.Write(Math.Min(l-sum,l-sum1));
    }
}