Решение задачи For 18

#include <bits/stdc++.h>
using namespace std;

int main() {
	srand((int)time(0));
	int N;
	N = rand() % 10 + 1;
	float A;
	//A = rand() % 100 / 10.0;
	A = rand() % 10;
	cout << "Number A: " << A << endl;
	cout << "Number N: " << N << endl;
	
	double p = 1, s = 1;
	for(int i = 1; i <= N; i++) {
		p *= A*(-1);
		s += p;
		cout << i << " : "<< p <<" : " << s << endl;
	}
	cout << "Result: " << s << endl;
	return 0;
}

import random

N = random.randrange(1,10)
print('N = ', N)
A = random.randrange(-10,10)
print('A = ', A)

P = 1.0
S = 1.0
for i in range(1,N+1):
    P *= A * (-1)
    S += P
    print(i," : ", P," : ", S)
print("Result:",S)
									

program For18;
var
  A,Temp,Rez:Real;
  N, i :Integer;
begin
  Write('Введите A: ');
  Readln(A);
  Write('Введите N: ');
  Readln(N);
  Rez:=1;
  Temp:=1;
  For i:=1  to N do
   begin
    Temp:=Temp*A*(-1);
    Rez:=Rez+Temp;
   end;
  Writeln(Rez);
end.