Choose the correct way to declare 2D array.a.int x[3][4] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11};b.int x[3] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11}c.int x[4] = {{0,1,2,3}, {4,5,6,7}, {8,9,10,11}};d.None of the aboveClear my choice
Question
Choose the correct way to declare 2D array.a.int x[3][4] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11};b.int x[3] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11}c.int x[4] = {{0,1,2,3}, {4,5,6,7}, {8,9,10,11}};d.None of the aboveClear my choice
Solution
The correct way to declare a 2D array is option a. int x[3][4] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11};
Here's why:
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In option a, int x[3][4] declares a two-dimensional array of integers. The first dimension is of size 3, and the second dimension is of size 4. This means that the array can hold a total of 3*4 = 12 integers. The list of values in the curly braces {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11} matches this, as there are 12 values.
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Option b, int x[3] = {0, 1 ,2 ,3 ,4 , 5 , 6 , 7 , 8 , 9 , 10 , 11} is incorrect because it declares a one-dimensional array of size 3, but tries to initialize it with 12 values.
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Option c, int x[4] = {{0,1,2,3}, {4,5,6,7}, {8,9,10,11}}; is incorrect because it tries to declare a one-dimensional array of size 4, but tries to initialize it with three arrays of four integers each.
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Option d, None of the above, is incorrect because option a is a correct way to declare a 2D array.
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