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//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}"); */
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