Відповідь:
#include <iostream>
#include <cstdlib>
#include <time.h>
using namespace std;
void randarr(int *A,const int size){
for(int i = 0; i < size; i++){
A[i] = rand() % 201 - 100;
}
}
void printarr(int *A,const int size){
for(int i = 0; i < size; i++){
cout << A[i] << " ";
}
}
float expression(int *A,int size){
float sum = 0;
int counter = 0;
for(int i = 0; i < size; i++){
if(A[i] > 0){
sum += A[i];
counter++;
}
}
sum /= counter;
return sum;
}
const int size = 10;
int main(){
srand(time(NULL));
setlocale(LC_ALL , "Ukrainian");
int A[size];
randarr(A,size);
printarr(A,size);
cout << "\nСереднє арифметичне додатнiх чисел = " << expression(A,size) << endl;
return 0;
}
var a:array[1..n] of integer;
s1,s2,i:integer;
begin
writeln('vvedite tri cisla=');
for i := 1 to n do
readln(a[i]);
s1:=0;
s2:=0;
for i := 1 to n do
if a[i]>0 then s1:=s1+sqr(a[i])*a[i] else s2:=s2+sqr(a[i]);
writeln('s1=',s1,' s2=',s2);
readln;
end.