What is the output of the following snippet? #include <iostream> #include <string> #include <vector> using namespace std; int main() { vector<string> t = { "alpha", "beta", "gamma" }; int *cnt = new int[3], *p = &cnt[0]; for(int i = 0; i < t.size(); i++) *p++ = t[i].length(); cout << cnt[0] << cnt[1] << cnt[2]; delete [] cnt; } Compilation fails 012 111 545

The output of the given C++ code snippet will be "545".

Here's the step-by-step explanation:

1. A vector of strings t is declared and initialized with three strings: "alpha", "beta", "gamma".

2. An integer pointer cnt is declared and a new integer array of size 3 is allocated on the heap. The pointer cnt points to the first element of this array.

3. Another integer pointer p is declared and initialized to point to the same location as cnt (i.e., the first element of the array).

4. A for loop is used to iterate over the vector t. For each iteration, the length of the current string is calculated using the length() function and this value is assigned to the location pointed to by p. The pointer p is then incremented to point to the next location in the array.

5. After the loop, the lengths of the strings "alpha", "beta", "gamma" have been stored in the array pointed to by cnt. These lengths are 5, 4, and 5 respectively.

6. The cout statement prints the values in the array pointed to by cnt, which are 5, 4, and 5.

7. Finally, the dynamically allocated array is deallocated using the delete[] operator.

The output of the given C++ code snippet will be "545".

Here's the step-by-step explanation:

1. A vector of strings t is declared and initialized with three strings: "alpha", "beta", "gamma".

2. An integer pointer cnt is declared and a new integer array of size 3 is allocated on the heap. This array is used to store the lengths of the strings in the vector t. Another integer pointer p is declared and initialized to point to the first element of the cnt array.

3. A for loop is used to iterate over the vector t. For each string in the vector, its length is calculated using the length() function and this value is stored in the location pointed to by the pointer p. The pointer p is then incremented to point to the next location in the cnt array.

4. After the loop, the lengths of the strings "alpha", "beta", and "gamma" are stored in the cnt array. These lengths are 5, 4, and 5 respectively.

5. The cout statement prints the contents of the cnt array, which are the lengths of the strings. So, "545" is printed to the console.

6. Finally, the delete[] operator is used to deallocate the memory that was previously allocated for the cnt array. This is a good practice to prevent memory leaks.