2(x)
Consider the following program segment and answer the questions given below:
int x[][] = { {2,4,5,6}, {5,7,8,1}, {34, 1, 10, 9}};
(a) What is the position of 34?
(b) What is the result of x[2][3] + x[1][2]?
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(a) The position of 34 is x[2][0]
(b) x[2][3] + x[1][2] = 9 + 8 = 17
Explanation:
(a) Position of 34
- The array
xis a 2D array, where elements are accessed using row and column indices. - The element
34is located in the 3rd row and 1st column. - In zero-based indexing:
- Row index:
2 - Column index:
0
- Row index:
Position: x[2][0]
(b) Result of x[2][3] + x[1][2]
Step 1: Locate x[2][3]
x[2][3]refers to the element in the 3rd row and 4th column.- Value at
x[2][3]=9.
x[1][2]refers to the element in the 2nd row and 3rd column.- Value at
x[1][2]=8.
x[2][3] + x[1][2]=9 + 8=17.