Example of using matrices and vectors of integers with C++

Exercise: An matrix of size 3 x 6 contains integers. Write a program in C++ that determines the minimum of the values contained in each row of the array, and store these values in a vector. Print out the result.

#include <iostream>

int main ()
{  
    // Initialize random number generator
    srand(time(NULL));
    
    // Define the dimension of the matrix
    const int R = 3;
    const int C = 6;
    
    // Declare a matrix and a vector
    int m [R][C];
    int v [R];
    
    // Fill the matrix with random values from 1 to 50
    for(int i=0; i<R; i++)
    {
        for(int j=0; j<C; j++)
        { 
        m[i][j] = (rand()%50)+1;
        }
    }
    
    // Showing the contents of the matrix
    printf( "The matrix: \n");
    for(int i=0; i<R; i++)
    {
        for(int j=0; j<C; j++)
        {
        printf( "%d\t", m[i][j]);
        }
        printf( "\n");
    }
    
    printf( "\n");
    
    // Calculating the minimum of each row of the matrix
    int min;
    for(int i=0; i<R; i++)
    {
            min = 100;
            for(int j=0; j<C; j++)
            {
             if (m[i][j] < min) 
                min = m[i][j];
            }
            // Save the minimum value found in the i-th element of the vector
            v[i] = min;
    }
    
    printf( "\n");
    
    // Showing the contents of the vector
    printf( "The array that contains the minimum values of each row of the matrix: \n");
    for(int i=0; i<R; i++)
    {
            printf( "%d \n", v[i]);
    }
        
    return 0;
}

This is the result:

The matrix:
19    39    26    35    45   
37    3      15    27    5   
43    12    40    26    5   
31    25    24    30    14   
26    42    13    20    48   


The array that contains the minimum values of each row of the matrix:
19
3
5
14
13