#include <iostream>
#include<conio.h>
#include "windows.h"
using namespace std;
int main()
{
float sum;
int n,count;
cout << "введите длину массива ";
cin >> n;
sum = 0;
count = 0;
float *mass = new float[n];
cout << "проинициализируйте массив" << endl;
for (int i = 0; i < n; i++)
{
cin >> mass[i];
}
for (int i = 0; i < n; i++)
{
if (mass[i] > 0)
{
sum += mass[i];
count++;
}
}
cout <<"среднее арифметическое положительных элементов массива = " << sum / count;
delete[] mass;
return 0;
}
x: string;
arr: array of char;
begin
readln(x);
arr := x.Split(' ')[1].ToCharArray();
System.Array.Reverse(arr);
writeln(length(arr), ' ', new string(arr));
end.
var
c: array of integer := (10, 20, 10, 30, 40, 50, 55, 1, 5, 9, 4, 3, 2);
r, q, s: real;
i, a, b: byte;
begin
q := 1;
i := 1;
r := c.Min();
while (i < length(c)) do
begin
q *= c[i];
i += 2;
end;
readln(a, b);
s := b - a - 1;
writeln('T = ', (R / Q + 1) + S);
end.
const
k = 5;
p = 5;
var
f: array [1..k, 1..p] of string;
o: real;
df: byte;
begin
for i: byte := 1 to k do
begin
for j: byte := 1 to p do
begin
f[i, j] := random(10, 99).ToString();
write(f[i, j]:3);
if (j >= 7 - i) then
begin
o += integer.Parse(f[i, j]);
df += 1;
f[i, j] := '██';
end;
end;
writeln();
end;
writeln();
for i: byte := 1 to k do
begin
for j: byte := 1 to p do
write(f[i, j]:3);
writeln();
end;
writeln(o / df);
end.