In this following code, what is the value of a[1][1]?int a[5][2] = {{1, 2}, {3, 4}, {5, 6}, {7, 8}, {9, 10}};4231
Question
In this following code, what is the value of a[1][1]?
int a[5][2] = {{1, 2}, {3, 4}, {5, 6}, {7, 8}, {9, 10}};
4231
Solution
The value of a[1][1] in the given code is 4.
Here's the step by step explanation:
In C++, arrays are 0-indexed, which means the first element is accessed with 0 rather than 1.
So, a[1][1] refers to the second element (index 1) of the second array (index 1) in the 2D array.
The 2D array is defined as follows:
a[0][0] = 1, a[0][1] = 2
a[1][0] = 3, a[1][1] = 4
a[2][0] = 5, a[2][1] = 6
a[3][0] = 7, a[3][1] = 8
a[4][0] = 9, a[4][1] = 10
So, a[1][1] = 4.
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