B_2869

https://www.acmicpc.net/problem/2869

2869번: 달팽이는 올라가고 싶다

#include <iostream>
#include <vector>

using namespace std;

int main()
{
    int A, B, V;
    cin >> A >> B >> V;

    if (A > V)
        cout << 1;
    else
    {
        // (V-A): Height raised during the daytime on Day 1
        // (A-V): Height that rises on a day
        if ((V - A) % (A - B) == 0) // If divided, the climb is complete
            cout << (V - A) / (A - B) + 1;
        else                        // Otherwise, it goes up one more day, exceeding V.
            cout << (V - A) / (A - B) + 2;
    }
    return 0;
}