#include <stdio.h>

const int maxsize=10;
const int maxnum=100;

void generateVector(int v[])
{
    int i;
    
    for(i=0; i<maxsize; i++) {   //indexes in C start on 0.
        v[i] = rand() % maxnum; // <--remainder of random value when divided by
    }				 // maxnum	
}

void generateMatrix(int m[][maxsize])  //You need the 2nd dimension specified
{
    int i, j;
    
    for(i=0; i<maxsize; i++)
       for(j=0;j < maxsize; j++)
           m[i][j] = rand() % maxnum;
}

void printVector(int v[])
{
    int i;
    
    for(i=0; i<maxsize; i++) {
        printf("%5d", v[i]);   // width of 5 field for each vector value
    }				  // %d means print an int
    printf("\n");
}

void printMatrix(int m[][maxsize])
{
    int i, j;

    for(i=0; i<maxsize; i++)  {
        for(j=0;j < maxsize; j++) {
            printf("%5d", m[i][j]);
        }
        printf("\n");
    }
}

int main()
{
    int v1[maxsize];
    int v2[maxsize];
    int m1[maxsize][maxsize]; 

    printf("Generating vector 1...\n");
    generateVector(v1);
    printf("Generating vector 2...\n");
    generateVector(v2);

    printf("V1: ");
    printVector(v1);
    printf("V2: ");
    printVector(v2);
    
    printf("Generating matrix 1...\n");
    generateMatrix(m1);
    printf("Printing the matrix:\n");
    printMatrix(m1);
    
    return 0;
}