# L7_T2

unknown
c_cpp
2 years ago
2.0 kB
3
Indexable
Never
```#include <iostream>
#include <cstdlib>
#include <math.h>

using namespace std;

void InitMatrix(int**, int, int);
void DeleteMatrix(int**, int);
void PrintMatrix(int**, int, int);

int ProdOfRows(int**, int, int);
int SumOfColumns(int**, int, int);

int main()
{
int n, m;

cout << "Enter array dimensions: " << endl;
cin >> n >> m;

int **arr = new int* [n];
for(int i = 0; i < n; i++)
arr[i] = new int[m];

InitMatrix(arr, n, m);
PrintMatrix(arr, n, m);

cout << "Product of row indices of elements that are greater than 8: " << ProdOfRows(arr, n, m) << endl;
cout << "Sum of column indices of elements that are greater than 8: " << SumOfColumns(arr, n, m) << endl;

DeleteMatrix(arr, n);
return 0;
}

int ProdOfRows(int **arr, int n, int m)
{
int product = 1;

for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
if(arr[i][j] > 8)
{
product *= i;
//cout << endl << i << endl;
}
}
}
return product;
}
int SumOfColumns(int **arr, int n, int m)
{
int sum = 0;

for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
if(arr[i][j] > 8)
{
sum += j;
//cout << endl << j << endl;
}
}
}
return sum;
}
void InitMatrix(int **arr, int n, int m)
{
for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
cout << "A[" << i << "][" << j << ']';
cin >> arr[i][j];
cout << endl;
}
}
}
void DeleteMatrix(int **arr, int n)
{
for(int i = 0; i < n; i++)
delete []arr[i];
delete []arr;
}
void PrintMatrix(int **arr, int n, int m)
{
cout << endl;
for(int i = 0; i < n; i++)
{
for(int j = 0; j < m; j++)
{
cout << ' ' << arr[i][j];
}
cout << endl;
}
cout << endl;
}```