I need to turn in my homework by Monday morning, and I have noidea how to work w

Question

I need to turn in my homework by Monday morning, and I have noidea how to work with recursion. Please help me out. I willrate

All of those functions have to be in the same program withoutusing any loops

-Multiply a*b, but we cannot use any arithmetic operators except++ and --;

           Unsigned multiply (unsigned a, unsigned b)

-Return the number of chars in s, not counting the terminatingnull char. Don’t use strlen, have the function find out thelength

      intstringLength (const char s[])

-Return 1 if all the chars in are digits, return 0 otherwise

           allDigits(const char[])

-Return the number represented in the string. For instancevalue(“1234”) would return 1234. You may assume withoutchecking that if the arg were passed to allDigits. allDigits willreturn 1

           value ( const char s[])

-Return the sum of all size elements of the array

           double sum (const double a[], unsigned size)

-Return the product of all size elements of the array

           double sum (const double a[], unsigned size)

-Return the maximum value if all size elements of the array

           double max (const double a[], unsigned size)

-Return the minimum value if all size elements of the array

           double min (const double a[], unsigned size)

-Return the index of the maximum value.

           unsigned maxIndex (const double a[], unsigned size)

-Return the index of the minimum value.

           unsigned maxIndex (const double a[], unsigned size)

-We assume that both array arg have the size elements. Thefunction’s job is to copy all the value from b to thecorresponding positions in a.

           void coppyArray (double a[], const double b[], unsigned size)

Thank you so much.

           

Explanation / Answer

please rate - thanks best I can do, but some is better than none! #include #include unsigned multiply (unsigned a, unsigned b); double sum (const double a[], unsigned size); double product (const double a[], unsigned size); double max (const double a[], unsigned size); double min (const double a[], unsigned size); int main() { printf("multiply(3,5)=%d ",multiply(3,5)); double a[]={2,1,5,3,4}; printf("sum(2,1,5,3,4)=%f ",sum(a,5));    printf("product(2,1,5,3,4)=%f ",product(a,5));     printf("max(2,1,5,3,4)=%f ",max(a,5));      getch();     return 0; } double max (const double a[], unsigned size) {double temp; if(size == 1 )        return a[0]; else {temp=max(a, size-1);    if (temp>a[size])        return temp;    else       return a[size];    }   } double product (const double a[], unsigned size) { if (size==0)       return 1;     else       return product( a, size - 1 ) * a[size - 1 ]; } double sum (const double a[], unsigned size) { if (size==0)       return 0;     else       return sum( a, size - 1 ) + a[ size- 1 ]; } unsigned multiply (unsigned a, unsigned b) {unsigned result; if(b==1)     returna;                     else     return a +multiply(a, b-1); }

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