How to query sum of numbers?

To query the sum of numbers in C, you can use a simple program that prompts the user to enter a series of numbers and then calculates the sum. Here's an example:

#include <stdio.h>

int main() {
    int n;
    float x, sum = 0.0;

    // Ask the user for the number of inputs
    printf("Enter the number of values to sum: ");
    scanf("%d", &n);

    // Get the input numbers and calculate the sum
    for (int i = 0; i < n; i++) {
        printf("Enter number %d: ", i + 1);
        scanf("%f", &x);
        sum += x; // Add the input number to the sum
    }

    // Display the result
    printf("The sum of the entered numbers is: %.2f\n", sum);

    return 0;
}

Steps to Compile and Run:

Create a file named sum_numbers.c:
```
cd ~/project
touch sum_numbers.c
```
Copy the above code into sum_numbers.c.
Compile the program:
```
gcc sum_numbers.c -o sum_numbers
```
Run the program:
```
./sum_numbers
```

How It Works:

The program first asks the user how many numbers they want to sum.
It then uses a loop to read each number from the user and adds it to the sum variable.
Finally, it prints the total sum of the entered numbers.

You can modify the program to handle different data types or to include error checking as needed.