[codility]Frog-Jmp

// you can also use includes, for example:
// #include <algorithm>
int solution(int X, int Y, int D) {
    // write your code in C++98
    int totalDis = Y-X;
    int remainder = totalDis%D;
    int quotient = totalDis/D;
    if(remainder != 0) return quotient+1;
    else return quotient;
}