Untitled

//Prob 5
/*
int n;
Console.WriteLine("dati n:");
n = int.Parse(Console.ReadLine());

int[,] x = new int[n, n];
Random r = new Random();

for (int i = 0; i < n; i++)
{
    for (int j = 0; j < n; j++)
    {
        x[i, j] = r.Next(-10, 10);
    }
}
Console.WriteLine("Matricea are valorile :");

for (int i = 0; i < n; i++)
{
    for (int j = 0; j < n; j++)
    {
        Console.Write(x[i, j] + " ");
    }
    Console.WriteLine();
}

int sumaDeasupaDiagonaleiPrincipale = 0;
       
for (int i = 0;i < n; i++)
{
    for (int j = 0;j < n; j++)
    {
        if (i < j)
        {
            sumaDeasupaDiagonaleiPrincipale= sumaDeasupaDiagonaleiPrincipale + x[i, j];
        }
    }
}
Console.WriteLine($"suma numerelor de sub diagonala principala = {sumaDeasupaDiagonaleiPrincipale}");

*/


//Prob 6
/*
int n;
Console.WriteLine("dati n:");
n = int.Parse(Console.ReadLine());

int[,] x = new int[n, n];
Random r = new Random();

for (int i = 0; i < n; i++)
{
    for (int j = 0; j < n; j++)
    {
        x[i, j] = r.Next(-10, 10);
    }
}
Console.WriteLine("Matricea are valorile :");

for (int i = 0; i < n; i++)
{
    for (int j = 0; j < n; j++)
    {
        Console.Write(x[i, j] + " ");
    }
    Console.WriteLine();
}

int sumaDePeLiniiImpare = 0;
for (int i = 0; i < n; i = i + 2)
{
    for (int j = 0; j < n; j++)
    {
        if (i % 2 == 0)
        {
            sumaDePeLiniiImpare = sumaDePeLiniiImpare + x[i, j];

        }

    }
}
Console.WriteLine($"suma numerelor de pe randuri impare este {sumaDePeLiniiImpare}");

*/