Задача №5

#include "stdafx.h"
#include "stdio.h"
#include "conio.h"
#include "math.h"
#include "iostream"

using namespace System;
using namespace std;

const int I = 3;
const int J = 4;

void vvod(int A[I][J])
{
    int i, j;
    for (i = 0; i < I; i++)
    {
        cout << "\n";
        for (j = 0; j < J; j++)
        {
            cout << "A[" << i << "][" << j << "] = ";
            cin >> A[i][j];
        }
    }
}

int srednee(int A[I][J], int j)
{
    int i;
    float sum = 0;
    for (i = 0; i < I; i++)
    {
        sum = sum + A[i][j];
    }
    sum = sum / 3;
    cout << sum << ", ";
}

void main()
{
    int A[I][J];
    vvod(A);
    srednee(A, 0);
    srednee(A, 1);
    srednee(A, 2);
    srednee(A, 3);
    getch();
}