int sum = 0;3int[,] matrix = new int[,] { {1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 0} };for (int i = 0; i < matrix.GetLength(0); i++) {4int product = matrix[i,0];5for (int j = 1; j < matrix. GetLength(1); j++) {product *= matrix[i, j];sum += product;7}89}10Console.WriteLine(sum);Image not displaying?What value is printed out?
Question
int sum = 0;3int[,] matrix = new int[,] { {1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 0} };for (int i = 0; i < matrix.GetLength(0); i++) {4int product = matrix[i,0];5for (int j = 1; j < matrix. GetLength(1); j++) {product *= matrix[i, j];sum += product;7}89}10Console.WriteLine(sum);Image not displaying?What value is printed out?
Solution
Claro, vamos a resolver el problema paso a paso.
-
Inicializamos la variable
suma 0.int sum = 0; -
Definimos una matriz bidimensional
matrixcon los valores dados.int[,] matrix = new int[,] { {1, 2, 3 }, { 4, 5, 6 }, { 7, 8, 0} }; -
Iniciamos un bucle
forque recorre las filas de la matriz.for (int i = 0; i < matrix.GetLength(0); i++) { -
Dentro del bucle, inicializamos la variable
productcon el primer elemento de la fila actual.int product = matrix[i,0]; -
Iniciamos un segundo bucle
forque recorre las columnas de la fila actual, comenzando desde la segunda columna.for (int j = 1; j < matrix.GetLength(1); j++) { -
Multiplicamos
productpor el elemento actual de la matriz.product *= matrix[i, j]; -
Sumamos el valor de
productasum.sum += product; -
Cerramos ambos bucles y finalmente imprimimos el valor de
sum.Console.WriteLine(sum);
Ahora, vamos a calcular el valor de sum paso a paso:
-
Para la primera fila
{1, 2, 3}:product = 1product *= 2→product = 2sum += 2→sum = 2product *= 3→product = 6sum += 6→sum = 8
-
Para la segunda fila
{4, 5, 6}:product = 4product *= 5→product = 20sum += 20→sum = 28product *= 6→product = 120sum += 120→sum = 148
-
Para la tercera fila
{7, 8, 0}:product = 7product *= 8→product = 56sum += 56→sum = 204product *= 0→product = 0sum += 0→sum = 204
Por lo tanto, el valor que se imprime es 204.
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