Provide functions which do the following: A) initialize a four by four array of

Question

Provide functions which do the following:

A) initialize a four by four array of integers to zero

B) randomly assign values to a two by three array

C) randomly assign values to a four by four array

D) print out a four by four array of integers

E) sum the elements of a four by four array of integers

F) sum the elements of a two by three array of integers

G) sum the values of each row of a two by three array of integers and return a one dimensional array with these values

H) sum the values of each row of a four by four array of integers and return a one dimensional array with these values

I) Test each of these functions appropriately.

Code on C:

#include
#include

void print2DArray(int array[2][3]);
void intToZero2D(int array[2][3]);
int main(int argc, char *argv[]) {
   int array1[2][3]={{1,2,3},
                   {4,5,6}};

int array2[4][4];

print2DArray(array1);
print2DArray(array2);//array size does not match
intToZero2D(array1);//sets array to zero
intToZero2D(array2);
print2DArray(array1);//print to show the elements went to zero
print2DArray(array2);

   return 0;
}
void print2DArray(int myArray[2][3]) {
int row;
int column;
for(row =0; row < 2; row++){
   for(column = 0; column < 3; column++){
       printf("%d ", myArray[row][column]); //printf(" [%d][%d] = %d ", row, column, myArray[row][column]);
   }
   printf(" ");
}
}
void intToZero2D(int yourArray[2][3]){
   int row;
   int column;
   for(row=0;row<2;row++){
       for(column=0;column<3;column++){
           yourArray[row][column] = 0;
       }
   }
}

Explanation / Answer

#include<stdio.h>
#include <time.h>
#include <stdlib.h>

void inZero2D44(int a[4][4]){
        int i,j;
        for(i=0;i<4;i++)
                for(j=0;j<4;j++)
                        a[i][j]=0;
}

void inrand2D44(int a[4][4]){
        int i,j;
        srand(time(NULL));
        //int r = rand();
        for(i=0;i<4;i++)
                for(j=0;j<4;j++)
                        a[i][j]=rand()%1000;
}

void inrand2D23(int a[2][3]){
        int i,j;
        srand(time(NULL));
        for(i=0;i<2;i++)
                for(j=0;j<3;j++)
                        a[i][j]=rand()%1000;
}
void print2D23(int a[2][3]){
        int i,j;
        printf(" 2X3 : ");
        for(i=0;i<2;i++){
                for(j=0;j<3;j++)
                        printf("%d ",a[i][j]);
                printf(" ");
        }

}

void print2D44(int a[4][4]){
        int i,j;
        printf(" 4X4 : ");
        for(i=0;i<4;i++){
                for(j=0;j<4;j++)
                        printf("%d ",a[i][j]);
                printf(" ");
        }

}
void sum2D44(int a[4][4]){
        int i,j,sum=0;
        for(i=0;i<4;i++)
                for(j=0;j<4;j++)
                        sum+=a[i][j];
         printf(" 4X4 sum = %d ",sum);
}

void sum2D23(int a[2][3]){
        int i,j,sum=0;
//         printf(" 1D row sum of 4X4 ");

        for(i=0;i<2;i++)
                for(j=0;j<3;j++)
                        sum+=a[i][j];
         printf(" 2X3 sum = %d ",sum);
}

void sumR2D23(int a[2][3],int b[2]){
        int i,j,sum=0;
        for(i=0;i<2;i++){
                sum = 0;
                for(j=0;j<3;j++)
                        sum+=a[i][j];
                b[i] = sum;
        }
       // printf(" sum %d = ",sum);
}

void sumR2D44(int a[4][4],int b[4]){
        int i,j,sum=0;
        for(i=0;i<4;i++){
                sum = 0;
                for(j=0;j<4;j++)
                        sum+=a[i][j];
                b[i] = sum;
        }
}
void printd(int d[2]){
        int i;
        printf(" 1D row sum of 2X3 ");
        for(i=0;i<2;i++)
                printf("%d ",d[i]);
}
void printc(int c[4]){
        int i;
         printf(" 1D row sum of 4X4 ");
        for(i=0;i<4;i++)
                printf("%d ",c[i]);
}

void main(){
        int i,j;
        int a[4][4],b[2][3],c[4],d[2];
        inZero2D44(a);
        print2D44(a);
        inrand2D23(b);
        print2D23(b);
        inrand2D44(a);
        print2D44(a);
        sum2D44(a);
        sum2D23(b);
        sumR2D23(b,d);
        printd(d);
        sumR2D44(a,c);
        printc(c);
}

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