What is wrong with the following code?int n = 5;int array[5];int i = 3;array[n] = i;
Question
What is wrong with the following code?int n = 5;int array[5];int i = 3;array[n] = i;
Solution 1
The issue with the code is that it's trying to access an out-of-bounds index of the array. In C++, array indices start at 0, so an array declared with size 5 has valid indices from 0 to 4.
Here's the code with the issue:
int n = 5;
int array[5];
int i = 3;
array[n] = i;
In the line array[n] = i;, it's trying to access array[5]. However, because the array indices start at 0, array[5] is actually the 6th element of the array, which doesn't exist in this case. This is an out-of-bounds access and can lead to undefined behavior.
To fix the issue, you should ensure that you're only accessing valid indices of the array. For example, you could change n to a valid index like 4:
int n = 4; // Changed from 5 to 4
int array[5];
int i = 3;
array[n] = i; // Now this is accessing array[4], which is a valid index
Solution 2
The problem with the code is that it is trying to access an out-of-bounds index of the array. In C++, array indices start at 0 and go up to n-1 for an array of size n. Here, the size of the array is 5, so valid indices are 0 to 4. However, the code is trying to access array[5], which is out of bounds and can lead to undefined behavior or a runtime error.
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