Question

Составьте программу вычисления суммы элементов массива ,стоящих на четных местах

Answer 1

#include <iostream>
using namespace std;

void main() {
int mas[10]={};
int sum=0;
for(int i = 0; i<10; i++)
{
cin >> mas[i];
}
for(int a = 0; i< 10; i++)
{
if(i % 2==0) sum += mas[i];
}
cout << sum << endl;
system("Pause")
}

Answer 2

Program to Calculate the Sum of Elements at Even Indexes in an Array

To calculate the sum of elements at even indexes in an array, you can use the following program in Python:

# Define the array
arr = [2, 3, -8, -1, 2, 4, -2, 3]

# Initialize the sum
sum_even = 0

# Iterate through the array and add the elements at even indexes to the sum
for i in range(0, len(arr), 2):
    sum_even += arr[i]

# Print the sum of elements at even indexes
print("The sum of elements at even indexes is:", sum_even)

This program initializes an array and then iterates through it, adding the elements at even indexes to the sum. Finally, it prints the sum of the elements at even indexes.

Note: This program is written in Python.