- #1
k_phanichandra
- 3
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What is the program code in c++ to get the sum of given n numbers using pointers?
type sum(type* p, int n)
{
type sum = 0;
for(int i = 0; i < n; i++) sum += p[i];
return sum;
}Pointers are variables that hold the memory address of another variable. They are used to indirectly access and manipulate data in a program, making it possible to create more dynamic and efficient code.
Pointers can be used to dynamically allocate memory for an array of N numbers and then iterate through the array to calculate the sum. This saves memory and allows for more flexibility in the size of the array.
Sure, here is an example code snippet:int *numbers = new int[N]; // dynamically allocate memory for N numbersint sum = 0; // initialize sum variablefor (int i = 0; i < N; i++) { cin >> *(numbers + i); // store user input in array using pointer arithmetic sum += *(numbers + i); // add current number to sum using pointer arithmetic}cout << "Sum of " << N << " numbers: " << sum << endl; // print sumdelete[] numbers; // free up memory
Yes, pointers can be tricky as they require careful memory management. Improper use of pointers can lead to memory leaks, segmentation faults, and other errors. It is important to understand how pointers work and to use them correctly in order to avoid these issues.
Yes, it is possible. Pointers are just one approach to solving this problem. Other methods include using arrays, loops, and variables to store and manipulate the data. However, using pointers can often be a more efficient and flexible solution.