Little Help

[05l8kr]

I'm suppose to write two codes....I have some of it done, I don't think I've done it right.

I'm suppose to write a program that will get from the user's keyboard one sets of numbers that will be read into two 2 dimensional arrays of size 4 by 3. Below is an example.

Array A
column 1 column 2 column 3
2 3 5
4 5 7
1 2 1
2 3 3

-Write a function that will add all of the numbers in the array and reutrn only the sum to the main.
-Print out the array and the sum.
-Use at least three functions.
This is what I have so far.....

#include <iostream>
 
typedef int ar_t [3][4];
 
//! Enter array from user.
//! Return by reference array of enter.
void
enter_array( ar_t & array ) {
 
    std::cout << "Enter array 3x4." << std::endl;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i )
        for( int j = 0; j < 4; ++j ) {
 
            std::cout << "[" << i+1 << "," << j+1 << "]:";
 
            std::cin >> array[i][j];
 
        }    
 
    return;
}
 
//! Print array.
void
print_array( ar_t & array ) {
 
    std::cout << "Array 3x4." << std::endl;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i ) {
 
        for( int j = 0; j < 4; ++j ) {
            std::cout << array[i][j] << "\t";
        }
 
        std::cout << std::endl;
    }
 
    return;
}
 
//! Calc sum of array.
int
calc_sum( ar_t & array ) {
 
    // Sum element.
    int sum = 0;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i )
        for( int j = 0; j < 4; ++j ) 
            sum += array[i][j];
 
    return sum;
}
 
int main(int argc, char* argv[])
{
 
    ar_t array;
 
    enter_array(array);
 
    print_array(array);
 
    std::cout << "Sum of array:" << calc_sum(array) << std::endl;
 
    return 0;
} 

I'm suppose to write a program that will get from the user's keyboard two sets of numbers that will be read into two 2 dimensional arrays of size 4 by 3. Below is an example.

Array A
2 3 5
4 5 7
1 2 1
2 3 3

Array B
4 4 4
2 3 4
1 2 1
8 9 8

program will use at least three functions to:

-Take the two arrays and generate a third array whose elements are the sum of the corresponding elements of the first two arrays then print both array and the array containing the sum print them one after the other on a column

This is what I have so far

 #include <iostream>
 
// Array type for all arrays of task.
typedef int ar_t [3][4];
 
//! Enter array from user.
//! Return by reference array of enter.
void
enter_array( ar_t & array ) {
 
    std::cout << "Enter array 3x4." << std::endl;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i )
        for( int j = 0; j < 4; ++j ) {
 
            std::cout << "[" << i+1 << "," << j+1 << "]:";
 
            std::cin >> array[i][j];
 
        }    
 
    return;
}
 
//! Print array.
void
print_array( ar_t & array ) {
 
    std::cout << "Array 3x4." << std::endl;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i ) {
 
        for( int j = 0; j < 4; ++j ) {
            std::cout << array[i][j] << "\t";
        }
 
        std::cout << std::endl;
    }
 
    return;
}
 
//! Calc sum of array.
int
calc_sum( ar_t & array ) {
 
    // Sum element.
    int sum = 0;
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i )
        for( int j = 0; j < 4; ++j ) 
            sum += array[i][j];
 
    return sum;
}
 
//! Calc sum of two arrays into new array by all positions.
void
sum_two_arrays( ar_t & one, ar_t & two, ar_t & sum ) {
 
    // Proc all elements.
    for( int i = 0; i < 3; ++i )
        for( int j = 0; j < 4; ++j ) 
            // sum all by index.
            sum[i][j] = one[i][j] + two[i][j];
 
    return;    
}
 
// Do all second task requements.
void
sum_of_two_arrays_by_user( ar_t & one, ar_t & two, ar_t & sum ) {
 
    // User enter first array.
    std::cout << "Enter first array." << std::endl;
    enter_array( one );
 
    // User enter second array.
    std::cout << "Enter second array." << std::endl;
    enter_array( two );
 
    // Forming array of sum.
    sum_two_arrays( one, two, sum );
 
    // Print entered data.
    std::cout << "Entered arrays is:" << std::endl;    
    // First array.
    print_array( one );
    std::cout << std::endl;
    // Second array.
    print_array( two );
    std::cout << std::endl;
 
    // Print result data.
    std::cout << "Sum of entered arrays is:" << std::endl;
 
    // Print sum array.
    print_array( sum );
 
}
 
void
do_second_task() {
 
    // first array.
    ar_t one;
 
    // second array.
    ar_t two;
 
    // array of sum.
    ar_t sum;
 
    sum_of_two_arrays_by_user( one, two, sum );
 
}
 
int main(int argc, char* argv[])
{
    // Do task function.
    do_second_task();
 
    return 0;
}

[Ganon11]

OK, at first glance this looks fine. What problems are you getting?

[05l8kr]

OK, at first glance this looks fine. What problems are you getting?

Just doesn't seem right. It won't compile either, any explaination, why it won't compile?

[Ganon11]

Well, when you try to compile, what does it say? What errors are generated?

Posting these helps readers focus on the problem you're having, rather than having to meticulously go through every single line of code.

[05l8kr]

I'm I doing the void main correctly?

[05l8kr]

? void man correctly? anyone