백준 2869

백준 2869

#include<iostream>
using namespace std;
int main()
{
    int A, B, V;
    cin >> A >> B >> V;

    int height = 0;
    int day = 0;

    day=(V-B) / (A - B);
    if ((V - B) % (A - B))
        day++;
    cout << day;
}