Crop Water Calculator

 

C Code:

#include<stdio.h>
#include <stdlib.h>

int main()
{
long int s,g,d,r;
scanf("%li %li %li %li",&s,&g,&d,&r);
long int i,sum=0;
for(i=0;i<d;i++)
{
    sum+=s*g;
    g-=r;
}
printf("%li",sum);

}

Java code:

import java.util.*;
public class Hello {

    public static void main(String[] args) {
Scanner s=new Scanner(System.in);
long se,g,d,r,w=0;
se=s.nextLong();
g=s.nextLong();
d=s.nextLong();
r=s.nextLong();
for(int i=1;i<=d;i++)
{
    w+=se*g;
    g-=r;
}
System.out.print(w);
    }
}